Xerox 8500DN Service Manual

Xerox 8500DN - Phaser Color Solid Ink Printer Manual

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  • Xerox 8500DN | Service Manual - Page 1
    Service Manual 701P27910 Phaser® 8400/8500/8550/8560 Color Printer
  • Xerox 8500DN | Service Manual - Page 2
  • Xerox 8500DN | Service Manual - Page 3
    Manual 701P27910 Phaser®8400/8500/8550/8560 Color Printer First Printing: January 2007 Warning The following servicing instructions are for use by qualified service personnel only. To avoid personal injury, do not perform any servicing other than that contained in the operating instructions
  • Xerox 8500DN | Service Manual - Page 4
    marks. PANTONE® Colors generated may not match PANTONE-identified standards. Consult current PANTONE Publications for accurate color. PANTONE® and other Pantone, Inc. trademarks are the property of Pantone, Inc. © Pantone, Inc., 2000. ii Phaser 8400/8500/8550/8560 Color Printer Service Manual
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    , results in injury or loss of life. Caution: A personal injury hazard exists that may not be apparent. For example, a panel may cover the hazardous area. Danger: A personal injury hazard exists in the area where you see the sign. Phaser 8400/8500/8550/8560 Color Printer Service Manual iii
  • Xerox 8500DN | Service Manual - Page 6
    or foreign material is spilled into the product, ■ if the printer is exposed to any excess moisture, ■ if the printer is dropped or damaged, ■ if you suspect that the product needs servicing or repair, ■ whenever you clean the product. iv Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 7
    static electricity to damage an electro-statically sensitive device ■ Handle IC's and EPROM's carefully to avoid bending pins. ■ Pay attention to the direction of parts when mounting or inserting them on Printed Circuit Boards (PCB's). Phaser 8400/8500/8550/8560 Color Printer Service Manual v
  • Xerox 8500DN | Service Manual - Page 8
    from the wall outlet. If you must service the printer with power applied, be aware of the potential for electrical shock. Warning Do not touch any electrical component unless you are instructed to do so by a service procedure. S7300-02 vi Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 9
    printer uses heat to fuse the image to media. Several components are heated during operation. Turn the printer power off and wait at least 10 minutes for these components to cool before you attempt to service the Fuser or adjacent components. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 10
    compliance with Part 15 of the FCC rules, use shielded interface cables. Canada (Regulations) This Class B digital apparatus comply with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada. viii Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 11
    . To ensure compliance with European Union regulations, use shielded interface cables. A signed copy of the Declaration of Conformity for this product can be obtained from Xerox. Phaser 8400/8500/8550/8560 Color Printer Service Manual ix
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    the plug/jack locations and the wiring diagrams for the print engine. Appendix A - Reference: This section provides an illustration of the printer's menu structure, a listing of printer status codes, and a list of Service Diagnostics tests. x Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 13
    2-16 Electronics Module 2-19 I/O Board 2-22 Sensors 2-22 Print Process 2-23 Printing 2-24 Paper Pick for Tray 1 2-25 Paper Pick for Trays 2 - 4 2-26 Transfixing and Exiting 2-27 Duplex Printing 2-30 Transfix and Print Speeds 2-31 Phaser 8400/8500/8550/8560 Color Printer Service Manual xi
  • Xerox 8500DN | Service Manual - Page 14
    34,0XX.xx Errors - Printhead NVRAM Faults 3-35 36,000.40 Errors - Drum Maintenance Faults 3-36 36,001.67 Errors - Drum Maintenance Fault 3-36 36,002.44 Errors - Drum Maintenance Program Fault 3-36 37,0XX.xx Errors - PEST Faults 3-36 xii Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 15
    the Paper Path 4-70 Operating System and Application Problems 4-71 Testing Communications Ports 4-71 Network Problems 4-73 Obtaining Serial Back Channel Trace 4-73 Obtaining a Back Channel Trace with USB to Serial Adapter 4-74 Phaser 8400/8500/8550/8560 Color Printer Service Manual xiii
  • Xerox 8500DN | Service Manual - Page 16
    Mode 6-12 Enabling Jet Substitution Mode (8400 6-12 Enabling Jet Substitution Mode (8500/8550/8560 6-13 Disabling Jet Substitution Mode (8400 6-13 Disabling Jet Substitution Mode (8500/8550/8560 6-14 Resetting NVRAM 6-14 xiv Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 17
    7 Cleaning and Maintenance Service Cleaning Maintenance Procedure 7-2 Cleaning 7-2 Pick Roller Cleaning Method 7-3 Maintenance 7-4 Drum Maintenance Kit 7-4 Waste Tray 7-5 Lubrication 7-5 Inspection 7-5 8 Service Parts Disassembly Overview 8-2 Standard Orientation of the Printer 8-2 General
  • Xerox 8500DN | Service Manual - Page 18
    8560 A-4 Media Margin Specification Table A-6 Paper Weight Equivalence Table A-7 On-site Printhead Troubleshooting Checklist (8400 A-8 Ink Failure Checklist A-12 On-site Printhead Troubleshooting Checklist (8500/8550/8560 A-13 Index xvi Phaser 8400/8500/8550/8560 Color Printer Service Manual
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    General Information In this chapter... ■ Printer Introduction and Overview ■ Printer Configurations ■ Control Panel Configuration ■ Parts of the Printer ■ Routine Maintenance Items and Consumables ■ Printer Specifications 1 Chapter
  • Xerox 8500DN | Service Manual - Page 20
    and Overview The Phaser 8400/8500/8550/8560 Color Printer Service Manual is the primary document used for repairing, maintaining, and troubleshooting the printer. To ensure understanding of this product, complete the Phaser 8400/8500/ 8550/8560 Service Training and self-study guide. Back Left Front
  • Xerox 8500DN | Service Manual - Page 21
    Standard Standard * Japanese fonts are provided for applicable countries per special licensing requirements. ** The following features are not included in this configuration: proof print, saved print, secure print, and collation. Phaser 8400/8500/8550/8560 Color Printer Service Manual 1-3
  • Xerox 8500DN | Service Manual - Page 22
    Information 1-4 Phaser 8500/8550 Printer Configurations Phaser Features 8500N 8500DN 8550DP 8550DT 8550DX Maximum Print Speed Phaser 8560 printers with a hard drive: proof print, saved print, secure print, personal print, and font storage. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 23
    downward through the menus. 7 OK button Accepts the selected setting. 8 Help (?) or Information button Displays a help message with information about the printer, such as printer status, error messages, and maintenance information. Phaser 8400/8500/8550/8560 Color Printer Service Manual 1-5
  • Xerox 8500DN | Service Manual - Page 24
    the proper operating values. On powerup, when the Xerox splash screen displays, press and release the Up Arrow button, then press the Down Arrow button. If the printer detects ink on the drum, the display indicates a warming-up status. 1-6 Phaser 8400/8500/8550/8560 Color Printer Service Manual
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    -004 1 2 34 1. Maintenance kit 2. Waste Tray 5 3. Power Cord connection 6 4. Power switch 7 5. Parallel connection (8400 series only) 6. USB connection 8 7. Configuration Card 8. Ethernet 10/100 Base-T connection s8500-005 Phaser 8400/8500/8550/8560 Color Printer Service Manual 1-7
  • Xerox 8500DN | Service Manual - Page 26
    board. 4 2 1 3 1 1. Hard Drive (optional) 2. Memory (RAM) DIMM 1 and DIMM 2 s8500-006 3. Configuration Card (Installed from the side under the interface cover.) 4. NVRAM (Configuration Card handles NVRAM differences between models). 1-8 Phaser 8400/8500/8550/8560 Color Printer Service Manual
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    Note Phaser 8500 models support only the standard-capacity Drum Maintenance Kit. Phaser 8400 and 8550/8560 models support both the standard- and extended-capacity kits. Phaser 8400 kits and Phaser 8500/ 8550/8560 kits are not interchangeable. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 28
    in.) printer only Required for inkload and jam access. Bottom - No obstruction between Required for airflow. mounting surface and printer Min. install width - 711 mm (28 in.) Requires placing printer at an angle to remove waste tray. 1-10 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 29
    suface. Advise the customer to use care not to shake the printer excessively when loading media or closing the Front Door. During operation, the ink is in liquid form an can spill from the Printhead reservoir resulting in output defects. Phaser 8400/8500/8550/8560 Color Printer Service Manual 1-11
  • Xerox 8500DN | Service Manual - Page 30
    Printing Process Solid-ink Color Medium Yellow, cyan, magenta, and black ink sticks, each shapecoded. The printer uses the subtractive color system to produce the colors jam performance Humidity 10% - 80% RH Non-Condensing operating 1-12 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 31
    Phaser Color Printing Labels l l Special Phaser Professional Solid Ink Business Cards l l Phaser Professional Solid Ink High l l Resolution Photo Paper Phaser Premium Postcards ll Phaser Weatherproof Paper l l Phaser l l Phaser 8400/8500/8550/8560 Color Printer Service Manual 1-13
  • Xerox 8500DN | Service Manual - Page 32
    "Printing" on the User Documentation CD-ROM for information on how to minimize these occurrences. NOTE 2-sided printing can only be used for paper with widths greater than 5.5 in. (139.7 mm) and lengths greater than 8.3 in. (210.82 mm). 1-14 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 33
    Theory of Operation In this chapter... ■ Main Printer Subsystems ■ Print Process ■ Printer Self-Maintenance ■ Configuration Card Personality Parameters 2 Chapter
  • Xerox 8500DN | Service Manual - Page 34
    a solenoid. The Media Drive motor also controls the movement of the Wiper Blade and headlock mechanism through a gear train and solenoid on the Exit Module. 2-2 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 35
    (also known as the Ecan); which contains the main board, the image processor board, the power control board, and the power supply board. Distributed in the print engine are: the Wave Amplifier, I/O board, and Drum Heater Relay Board. Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-3
  • Xerox 8500DN | Service Manual - Page 36
    positions during the printing process. The printer does not function properly. Process Drive Swing Gear Imaging Transfix Transfix Camshaft Process Motor Gear Process Motor Gear Drum Maintenance Camshaft Drum Maintenance s8500-009 2-4 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 37
    gear allows the Pick Roller and Take Away Roller to rotate in the same direction regardless of the direction the motor is rotating. Motor Media Path Drive Swing Gear Duplex Roller Deskew Roller Take Away Roller Pick Roller s8500-010 Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-5
  • Xerox 8500DN | Service Manual - Page 38
    determines if the individual channel is empty. The sensors also determine the count of the ink sticks as they pass by the Ink-Out sensor flag. Ink Loader Door Ink Stick Ink Melt Units Ink Low Sensor Ink Out Sensor Printhead s8500-011 2-6 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 39
    inches), the Printhead can print the entire image on the rotating drum. The Printhead provides one size ink drop, which is used for all print-quality modes. Reservoir Drum Printhead Head Driver Board Purge Tube Jet Stack s8500-012 Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-7
  • Xerox 8500DN | Service Manual - Page 40
    neighboring jets. The jet array bonds to a cast aluminum ink reservoir, which supplies the molten ink to the jet array. Heaters in the reservoir and the jet array maintain the ink at a printing temperature of about 60 degrees centigrade. 2-8 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 41
    the surface of the drum. To find the Printhead printer frame for a few seconds, and then reversed a set distance. A tension spring links to the Printhead's left shaft and provides a preloaded tension to allow the Printhead to move smoothly. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 42
    / right side motion when the Printhead is back and locked) by the right lock and the left home stop on the left side frame. 2-10 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 43
    stack and the drum. When the Process Drive is activated, it drives the Drum Maintenance Camshaft to engage the tilt gear train. The tilt cam tilts the Printhead into the print position. The the Head Tilt Solenoid in the 8500/8550/8560. Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-11
  • Xerox 8500DN | Service Manual - Page 44
    Wiper Blade to move into position in front of the Printhead faceplate. The Process Drive drives the gears to the tilt compound gear train. The Drum Maintenance Camshaft drives the gear train to tilt the Printhead. 2-12 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 45
    arrival of the leading edge at the strip flag. The likely cause is the position of the Drum Maintenance Camshaft gear in relation to the Process Drive gear. To correct this problem, see "Timing the Drum Maintenance Camshaft" on page 6-9. Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-13
  • Xerox 8500DN | Service Manual - Page 46
    the purge tubing also acts as a vent to atmosphere when not purging, a more serious failure may occur if the ink overfills. Overfilling may trap air in the reservoir, which would prevent the melted ink from entering the reservoir. 2-14 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 47
    Printhead. If a damaged Wiper Blade catches on the Printhead, it could propel hot liquid ink upward into your face. Printhead Purge Tube Solenoid Valve Purge Pump (Open During Wiper Action) 30 Sec Wiper Printhead Drum s8500-018 Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-15
  • Xerox 8500DN | Service Manual - Page 48
    Y-Axis Belt uses an active tension system to allow the pulley to float while the spring actively adjusts the belt tension. Note The drum rotates in different directions for each process. ■ Transfix CW ■ Maintenance CCW ■ Printing CCW 2-16 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 49
    from the drum drive system; it uses a closed-loop servo drive system, which is inherently dangerous. Since the motor speeds up if it senses the drum drive system slowing down, fingers caught in the drum belts and gears can be severely injured. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 50
    printing from Tray 1 or on envelopes. The transfix load springs and double lever arms increase the force when the Transfix Camshaft engages. Caution Never attempt to adjust or increase the transfix pressure on the springs. s8500-021 2-18 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 51
    supports the transfer of printer model and network configuration information from a failed printer to a replacement printer. When replacing the electronics module, you must transfer the Configuration Card to the replacement electronics module. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 52
    opens in the unlikely event of a "runaway" heater following a hardware failure. The Drum and the Preheater thermal fuses are located on the Preheater. Additional thermal fuses are located on the Printhead and on the ink melting elements. 2-20 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 53
    power switch does not disconnect power from the printer. The power switch signals the supply and the printer logic to begin a shutdown sequence. F3 AC H13 H H12 1 H11 H10 Vcc H9 H8 uProcessor REG H4 H3 H2 H1 Vss s8500-022 Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-21
  • Xerox 8500DN | Service Manual - Page 54
    Preheater Sensor Deskew Sensor Media Width Sensor Tray Empty Sensor (Also in Trays 3 & 4) Drum Position Encoder Front Door Sensor Paper Size Sensor Pick Sensor (525-sheet Feeder) Tray Lift Sensor (Also in Trays 3 & 4) s8500-023 2-22 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 55
    , forcing the oil roller and blade against the Drum. The saturated roller evenly distributes oil on the Drum as it rotates. Drum Oil on Drum Blade Drum Maintenance Maintenance Roller Camshaft Drum Maintenance Pivot Plate s8500-016 Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-23
  • Xerox 8500DN | Service Manual - Page 56
    or poorly performing neighboring jet. When the printer is in the jet substitution mode, the Printhead makes a second, right to left movement to deposit the pixel columns of the substituted jets. See "Jet Substitution Mode" on page 6-12. 2-24 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 57
    the buckle for the deskew process. ■ Pick Roller drive to disengage when the door is opened and closed. ■ Pivoting separator pad to prevent it from binding. Drive Gear Cam Pick Roller Spring Loaded Lift Plate Separator Pad s8500-024 Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-25
  • Xerox 8500DN | Service Manual - Page 58
    is straighten to prevent skewing. The deskew rollers do not reverse during duplex printing. Strip Sensor Exit Sensor Preheat Exit Sensor Deskew Roller Deskew Sensor Take Away Roller Retard Roller Pick Roller Nudger Roller s8500-025 2-26 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 59
    Rollers in the correct direction to pull the media out. However, the Deskew Clutch is de energized so the deskew rollers are not driven during transfix. The Exit Rollers deposit the media into the Output Tray, ending the print cycle. Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-27
  • Xerox 8500DN | Service Manual - Page 60
    Theory of Operation Transfix Load Arm Transfix Load Module Transfer Roller Transfix Load Spring Transfix Cam Drum Process Drive Transfix Roller Gear Transfix Cam Swing Arm Gear s8500-026 2-28 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 61
    Theory of Operation Release Blade Strip Solenoid Transfix Roller Preheat Sensor Exit Sensor Strip Sensor Paper Preheater s8500-027 Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-29
  • Xerox 8500DN | Service Manual - Page 62
    smearing to occur. Since the 8400 models operate at a lower temperature, the solenoid is not needed. Exit Sensor Strip Sensor Preheat Sensor Duplex Roller Deskew Sensor Exit Roller Preheater Lift Solenoid Duplex Roller s8500-028 2-30 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 63
    OHP Media 5 ips Approximate Print Speeds (8400 Series) Tray (Source) / Resolution Simplex, A4 Paper Tray 1 Fast Color (300x300 dpi) Standard Auto Duplex, A4 Paper 10 sides per minute (spm) 9 spm 4 spm 3 spm 15 spm 13 spm 11 spm 7 spm Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-31
  • Xerox 8500DN | Service Manual - Page 64
    Mode PCL 600 x 600 Mode Simplex, A4 Paper 12 pages per minute (ppm) 9 ppm 6 ppm 3.5 ppm 6.5 ppm 3 ppm 30 ppm 24 ppm 16 ppm 10 ppm 16 ppm 8ppm Auto Duplex, A4 Paper 8.5 sides per minute (spm) 7 spm 5 spm 3 spm 17 spm 14 spm 10 spm 6 spm 2-32 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 65
    on the Printhead maintenance cycle. Warning When servicing the printer be careful of the purge system as it passes the Printhead. If a damaged Wiper Blade catches on the Printhead, it could propel hot liquid ink upward into your face. Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-33
  • Xerox 8500DN | Service Manual - Page 66
    20 sheets go through the duplex path. 4. The printer returns to the Print Quality Problems menu. Because of the higher paper temperatures involved, this function can clean the Drum of ink deposits caused by a contaminated blade on the Drum Maintenance Kit. Transfix Roller Oiling Oiling the Transfix
  • Xerox 8500DN | Service Manual - Page 67
    1 Enable 1 WINS Note Type 1 Primary WINS Server 4 Secondary WINS Server 4 Speed 1 On 1 Information Forwarding 1 SMTP Server Automatic 1 Legal Settings 1 Admin_Password 11 Admin_Username 11 KeyUser_Password 11 Phaser 8400/8500/8550/8560 Color Printer Service Manual 2-35
  • Xerox 8500DN | Service Manual - Page 68
    Scheme IPP user name IPP password Login Password Print Hosts On Enabled On Enabled On Enabled On Parallel" and "USB", "On" and "Enabled" parameters have not been identified as personality parameters. They are not tied to networking. 2-36 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 69
    Error Messages and Codes In this chapter... ■ Introduction ■ Power-Up Error Messages and LED Codes ■ BIST Error Reporting ■ POST Error Reporting ■ PEST Error Reporting ■ Fault Code Error Message Troubleshooting ■ Jam Codes 3 Chapter
  • Xerox 8500DN | Service Manual - Page 70
    "Service Diagnostics Mode Menu" on page 4-5. For troubleshooting printer problems not associate with, or displaying, an error code or message, such as startup or power on, media, paper path, printquality or image problems, and electrical failures, see "General Troubleshooting" on page 4-1 or "Print
  • Xerox 8500DN | Service Manual - Page 71
    the Electronics Module (system). 4. If the problem still occurs, reseat the RAM DIMMs. 5. Replace the Electronics Module. For disassembly, see "Electronics Module (PL5.0.5)" on page 8-46. For replacement, go to the Parts List on page 9-3. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-3
  • Xerox 8500DN | Service Manual - Page 72
    .4 Flutter then 05 blinks Hard Communications error. PLD I/O Board 32.1 serial, link down/bad parity. Flutter only Soft Communications error. PLD I/O Board 32.2 serial, mismatch. 3-4 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 73
    drive general failure. Reseat IDE 6.808 cable and power cable. If problem persists, replace the IDE drive. The printer will work without the IDE drive. Flutter only Soft Control Panel link is error, IRQ spurious 19.5 assertion. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-5
  • Xerox 8500DN | Service Manual - Page 74
    and operation of various printer components. Error codes for PEST tests are displayed on the Control Panel and are all in the 37,XXX.xx series. For troubleshooting PEST error codes, "37,0XX.xx Errors - PEST Faults" on page 3-36. 3-6 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 75
    Code Error Message Troubleshooting Error Messages and Codes Fault Code Error Reporting Fault codes are saved to NVRAM and can be retrieved from the printer's fault history. All procedures that ask for a test to be run are referencing tests from within the "hidden" Service Diagnostics menu. For
  • Xerox 8500DN | Service Manual - Page 76
    correct the problem? 2 Inspect the Pick Rollers in the feeder tray(s). Are the rollers damaged, dirty printer on the feeder. 2. Ensure ground integrity (see "Ensuring Ground Integrity" on page 4-65). 3. Reset NVRAM. 4. Replace the feeder. 3-8 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 77
    card is an invalid model. a. Turn off printer. b. Verify that configuration card is correct card for printer. c. Insert or replace configuration card. d. Turn on printer. e. If problem continues, replace the Electronics Module. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-9
  • Xerox 8500DN | Service Manual - Page 78
    the Electronics Module. 3 Inspect the harness to the failed heater. Is the harness damaged? Replace the harness. Go to Step 2. Go to Step 3. Replace the problem component. 3-10 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 79
    , remove any obstruction from the system and reboot. Did this fix the problem? 2 Check the Printhead harness routing. Is the wiring blocking the Printhead? Re-route all wiring to the Printhead. No Go to Step 2. Go to Step 3. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-11
  • Xerox 8500DN | Service Manual - Page 80
    Replace the Process Drive. 4,0XX.6x Errors - Process Control Software Fault 1. Reset NVRAM and then retest. 2. Ensure ground integrity (see "Ensuring Ground Integrity" on page 4-65). 3. Replace the EEPROM chip. 4. Reboot the printer. 3-12 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 81
    with the Y-Axis sub-system. 5,004.44: Y-Axis fault_general fail problem with Drum motion sub-system. Troubleshooting Procedure for Y-Axis Sub-System Step Questions and Actions Yes No 1 From the Service Diagnostic Monitor Menu, Go to Step 2. Go to Step 3. run the Y-Axis Encoder test. Did the
  • Xerox 8500DN | Service Manual - Page 82
    the described home motion profile. 6,033.60: Could not allocate memory for X-Axis move parameters. a. Reset NVRAM, and then retest. b. Ensure ground integrity for the printer (see "Ensuring Ground Integrity" on page 4-65). 3-14 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 83
    ? 3 Is ink blocking Head Tilt Gear motion? Is the tilt-head latch properly installed? Yes No Is the problem Go to Step 2. fixed? Go to Step 4. Go to Step 3. Clean or reinstall the head-tilt and start over with Step 1. Go to Step 4. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-15
  • Xerox 8500DN | Service Manual - Page 84
    point to each other) ■ Wiper Assembly (bottom of travel) ■ Process Drive (holes on Transfix Camshaft and Drum Maintenance Camshaft line up with marks on frame, large gears within assembly line up with holes in Process Drive housing) 3-16 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 85
    the Tilt Axis Replace the Go to Step 7. Drive test. Process Drive. Did the test fail? 7 Use Service Diagnostics to run the Head Maintenance Wiper Clutch test. Did the test fail? Replace the Head Maintenance Clutch. Go to Step 8. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-17
  • Xerox 8500DN | Service Manual - Page 86
    Service Diagnostics to run the Wiper Drive test. Did the test fail? Complete. Go to Step 6 Replace the Head Maintenance Clutch. Inspect the maintenance drive system, replace any defective parts. Go to Step 7. Replace the Exit Module. 3-18 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 87
    process shaft and drive module shaft are at their home positions. Did this correct the problem? Go to Step 7. 7 Has ink spilled on the Head Tilt Gear on its Clean the drive train (near left side of the Printhead)? gears. Go to Step 8. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-19
  • Xerox 8500DN | Service Manual - Page 88
    Service Diagnostics to run the Process Replace the Motor test. Process Drive. Did the test fail? 7,0XX.6x Errors - Program Faults 1. Reset NVRAM and retest. 2. Ensure ground integrity for the printer (see "Ensuring Ground Integrity" on page 4-65). 3-20 Phaser 8400/8500/8550/8560 Color Printer
  • Xerox 8500DN | Service Manual - Page 89
    feed rollers are properly engaged in the drive gears. Did this correct the problem? 5 Run the Wiper Drive test. Did the test pass? Go to Step 6. No Go to Step 2. Go to Step 5. Go to Step 5. Replace the Media Drive Assembly. Go to Step 7. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 90
    or under the Printhead? printer and Is the Waste Tray overfilled? retest. 8,0XX.6x Errors - Program Faults 1. Reset NVRAM, and then retest. 2. Ensure ground integrity for the printer (see "Ensuring Ground Integrity" on page 4-65). 3-22 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 91
    able Go to Step 3. 1. Remove any to advance in the ink loader chute. blockage and/or Check for broken or wrong type ink replace the ink sticks. stick. 2. Replace the Ink Loader. 3. Run Clear ISC Fault test to clear the error. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-23
  • Xerox 8500DN | Service Manual - Page 92
    detected. 11,004.41: Control Panel or I/O Board broken serial link detected. 11,004.43: I/O Board broken serial link detected. 11,005.42: Power control broken serial link detected. 11,005.44: Power control broken serial link detected. 3-24 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 93
    I/O board. Replace the I/O board or the Control Panel. ■ 11,006.43 and 11,015.43 ■ 11,009.46 Replace the Printhead. Replace the I/O board or the Electronics Module. ■ For all other 11,000.4x errors: Replace the Electronics Module. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-25
  • Xerox 8500DN | Service Manual - Page 94
    retest. Did this correct the problem? Yes Complete. Complete. No Go to Step 2. Replace in this order: ■ NVRAM ■ Electronics Module 13,008.47: The Drum heater is too hot. 13,010.49: The Drum heater took too long to reach its setpoint. 3-26 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 95
    the Drum Temperature Sensor. 8 Using Service Diagnostics, run the Drum Heater test. Did the test pass? Replace the Drum Temperature Sensor. 9 Check continuity of the F0130 fuse on the Preheater. Is the fuse blown? Replace the Preheater. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 96
    Electrostatic Discharge). Troubleshooting Procedure for 13,067 to 13,071 Error Code (Drum Thermistor) Step Questions and Actions Yes No 1 Using Service Diagnostics, run the Drum Temperature Sensor the reading was corrupted by ESD. 3-28 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 97
    Diagnostics to run the Left Jetstack Temperature test. Did the test pass? Go to Step 4. Replace the Printhead. 4 Check and reseat all wiring to the Printhead. Complete. Did this correct the problem by ESD. Troubleshooting Procedure for Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-29
  • Xerox 8500DN | Service Manual - Page 98
    long to reach its setpoint. 13,579.42: The ink loader BLACK thermistor circuit is open. 13,581.44: The ink loader BLACK thermistor circuit is shorted. 13,583.46: The ink loader BLACK thermistor returned a bad reading, or ESD corruption. 3-30 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 99
    initialization message, but received other. 13,008.60: Thermal power manager task received an unexpected message. a. Reset NVRAM and retest. b. Ensure ground integrity for the printer (see "Ensuring Ground Integrity" on page 4-65). Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-31
  • Xerox 8500DN | Service Manual - Page 100
    match. Contact escalated Service Support Representative for information to clear fault. 19,005.41: A posssible static discharge from the Pick Clutch to the Electronics Module.Characterized by: ■ 19,005.41 error code displayed on the Control Panel ■ Printer hangs while printing with the Electronics
  • Xerox 8500DN | Service Manual - Page 101
    Complete. Did this correct the problem? No Correct or replace the remove the board so the printer boots using the main board's code and diagnostics. 22,0XX.6x Errors - Printing Faults Reboot the printer if one of these faults occur. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-33
  • Xerox 8500DN | Service Manual - Page 102
    causing drag. 3. Repair or replace as necessary. Did this correct the problem? No Go to Step 2. Go to Step 3. Go to Step 4. Go to Step 5. If the path is clear of debris and the rollers rotate normally, replace the Media Drive Assembly. 3-34 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 103
    Printhead ink Troubleshooting Procedure for Printhead NVRAM Step Questions and Actions Yes 1 Check and reseat all wiring to the Printhead. Complete. Did this correct the problem? No Replace in this order: ■ Printhead ■ Electronics Module Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 104
    AC circuit can cause AC voltage sags that cause the printer to fail its AC heater PEST tests (Print Engine Self Test). The printer may produce any of the following disconnected heater errors: ■ Printhead jet-stack 37,002.47 or 37,003.48 3-36 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 105
    power from the supply. 37,011.44: Inkmelt 2 (Magenta) disconnect. The inkmelt heater is not drawing the expected power from the supply. Inkmelt 1 (Cyan) disconnect. The inkmelt heater is not drawing the expected power from the supply. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-37
  • Xerox 8500DN | Service Manual - Page 106
    4 Did the test pass? Replace the Ink Loader. 8400 PEST Description 8500/8550/8560 PEST Description 37,013.40: Electronics module cooling fan disconnect. The electronics cooling fan is not drawing the expected power from the supply. 3-38 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 107
    power from the supply is not being drawn. This error may be caused by a power supply that is faulty or shorted by some other 50 V device. Check the 50 V on the Power supply. Or, ensure that the cables are not plugged into the clutch. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-39
  • Xerox 8500DN | Service Manual - Page 108
    . In this case, systematically turn off the printer, plug a wiring harness back in, and turn the printer on until the 50V supply fails (see "Measuring DC Power Supply Voltages" on page 65). Replace the defective part. Retest the printer. 3-40 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 109
    is not expected power. drawing the expected power. 37,021.48: Strip Solenoid disconnect. The Strip Solenoid is not drawing the expected power from the supply. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-41
  • Xerox 8500DN | Service Manual - Page 110
    supply. Solenoid or Clutch Troubleshooting Procedure Step Questions and Actions Yes 1 Run the appropriate diagnostic test: Go to Step 3. ■ 37,017.44 = Head Maintenance Clutch ■ 37,018.45 = Deskew Clutch ■ 37,019.46 = (8500 Motor. 3-42 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 111
    46: Drum heater relay A disconnect. The Drum heater A coil is not drawing the expected power from the supply. 37,026.44: 37,029.47: Drum heater relay B disconnect. The Drum heater B coil is not drawing the expected power from the supply. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-43
  • Xerox 8500DN | Service Manual - Page 112
    Motor. 8400 8500/8550/ 8560 PEST Description 37,032.41: 37,035.44: Y-Axis Motor disconnect. The Y-Axis motor is not drawing the expected power. 37,033.42: 37,036.45: Y-Axis Motor short. The Y-Axis motor is drawing too much power. 3-44 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 113
    . 8400 8500/8550/ 8560 PEST Description 37,036.45: 37,039.48: Process motor disconnect. The Process Drive is not drawing the expected power. 37,037.46: 37,040.40: Process motor short. The Process Drive is drawing too much power. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-45
  • Xerox 8500DN | Service Manual - Page 114
    . 37,053.44: Power supply +50 volt over limit. Power supply +50 volt over limit. 37,054.45: Power supply +50 volt under limit. Power supply +50 volt under limit. 37,055.46: Power supply -50 volt over limit. Power supply -50 volt over limit. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 115
    head driver board or wave amp board. 37,066.48: The Wave Amp may be shorted. Check the Wave Amp drive cable (lifted ends of conductors). Troubleshooting Procedure for Power Supply Step the Electronics Module. Replace the Wave Amp. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-47
  • Xerox 8500DN | Service Manual - Page 116
    . When Service Tools is displayed, release both keys. Then, scroll to Jam History and press OK to display the most recent jam list Note Jam History is not accessible from Service Diagnostics. It is only accessible from Customer Mode. 3-48 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 117
    state during mechanical recovery. 1. Check the Drum Maintenance Kit NVRAM contacts during the oiling process for continuity. 2. Instruct customer to remove media from Tray 1 before opening the Front Door. 3. Replace the pivot arm. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-49
  • Xerox 8500DN | Service Manual - Page 118
    the appropriate Tray Pick Clutch. 6. Ensure the Take Away Rollers are in good condition. 7. Test the Take Away Roller using the diagnostic Paper Path Drive test. 8. Replace the appropriate Separator Pad. 9. Replace the Pick Assembly. 3-50 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 119
    . 7. Run the Paper Path Drive test. 8. Replace the preheater, then retest C2C Strip flag unexpected event during mechanical recovery. C2D Strip flag unexpected state during warm-up. C2E Strip flag unexpected event during printer ready. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-51
  • Xerox 8500DN | Service Manual - Page 120
    Strip flag time-out during exit. 1. Open the Exit Cover and ensure the springs for the idler rollers are present and installed correctly (they should be the same for all 5 rollers). 2. Verify the metal bar is installed on top of the exit guide. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 121
    the exit roller, ensure the exit roller rotates. 3. Inspect and clean the stripper blade. 4. Replace the Drum maintenance unit. 5. Run the diagnostic Paper Path Drive test. E2D Tray 1 width sensor during warm-up. E2E Tray 1 width sensor during Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 122
    a fault state. M4G Media Drive stalled during an auto Drum maintenance cycle. M4H Media Drive stalled during Printhead maintenance. M4J Media Drive stalled during a Printhead purge. M4K Media Drive stalled during an oil transfix roller cycle. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 123
    Motor stalled while the printer staged for transfix. N4T Y-Axis Motor stalled while the printer transfixed the print. N4V Y-Axis Motor stalled during a Drum maintenance cycle. N4W Y-Axis Motor stalled while the printer imaged the Drum. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-55
  • Xerox 8500DN | Service Manual - Page 124
    . P4C Process motor stalled during mechanical recovery. P4D Process motor stalled during an printer warm-up. P4E Process motor stalled while the printer was in its ready state. P4F Process motor stalled while the printer was in a fault state. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 125
    was performing a Printhead purge cycle. T2K The Exit Cover open flag unexpectedly tripped while the printer was performing a transfix oiling cycle. T2L The Exit Cover open flag unexpectedly tripped while the printer was in Standby mode. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-57
  • Xerox 8500DN | Service Manual - Page 126
    sensor unexpectedly activated while transfixing the print. V2V Tray 2 media size sensor unexpectedly activated while print Drum maintenance cycle was being performed. V2W Tray 2 media size sensor unexpectedly activated during printer imaging. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 127
    Error Messages and Codes Jam Code Troubleshooting Procedures (Continued) V2X Tray 2 media size sensor unexpectedly activated while exiting print. 1. Ensure ground integrity of the printer, see page 4-65. 2. Ensure the Tray 2 paper guides are correctly set. 3. Run the Monitor Sensors test to test the
  • Xerox 8500DN | Service Manual - Page 128
    paper staged for print. X3T Tray 3 pick flag sensor timed out while transfixing the print. X3V Tray 3 pick flag sensor timed out while the printer Drum maintenance cycle was being performed. X3W Tray 3 pick flag sensor timed out while printer imaging. 3-60 Phaser 8400/8500/8550/8560 Color Printer
  • Xerox 8500DN | Service Manual - Page 129
    unexpectedly during warm-up. Z2E Tray 4 pick flag triggered unexpectedly while printer ready. Z2F Tray 4 pick flag triggered unexpectedly while printer in fault state. Z2L Tray 4 pick flag triggered unexpectedly while printer in standby. Phaser 8400/8500/8550/8560 Color Printer Service Manual 3-61
  • Xerox 8500DN | Service Manual - Page 130
    timed out while exiting print. 1. Verify the paper loaded in Tray 4 is the correct size and type. 2. Inspect/clean the pick roller assembly. Replace if necessary. 3. Run the Tray 4 Pick Shaft test 4. Replace the Tray 4 525-Sheet Feeder. 3-62 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 131
    General Troubleshooting In this chapter... ■ Service Diagnostics ■ Service Diagnostics Mode Menu ■ Check Menu Definition Tables ■ Electronics Troubleshooting ■ Ensuring Ground Integrity ■ Paper Path and Media-Based Problems ■ Operating System and Application Problems 4 Chapter
  • Xerox 8500DN | Service Manual - Page 132
    available information regarding the last 20 Jams reported by a test and/or the print engine. Displays a list of all recent diagnostic tests. See "Service Diagnostics Mode Menu" on page 4-5 for a complete explanation of each function. 4-2 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 133
    a chase page to follow a 2-sided printing job. Enables a chase page to follow an envelope print job. Centers the image by adjusting the margin (not operational). Exits the Hidden Service Diagnostics Menu and returns to the previous menu. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-3
  • Xerox 8500DN | Service Manual - Page 134
    the Back and Help buttons on the Control Panel. 4. Hold both buttons until the display reads Beginning Service Mode Initialization. Release the buttons and the printer reboots into service mode with the Service Diagnostics menu displayed. 4-4 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 135
    while entering diagnostics, they will remain On while diagnostics are being run. If the heaters are Off while entering diagnostics, they will remain Off. Utilize the Exercise Heaters function if it is necessary to turn On/Off the heaters. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-5
  • Xerox 8500DN | Service Manual - Page 136
    of maximum power is currently allocated (second value). Line Voltage Monitors line voltage as seen by the power supply. Reports max and min values. Control Panel Buttons Monitors Control Panel buttons and reports button presses. 4-6 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 137
    of the listed motors/ shafts 3 times in sequence. Process Motor Cycles the motor/shaft repeatedly. Y-Axis Motor X-Axis Motor Purge Pump Motor Drum Fan Motor Media Path Motor Fan Motor Media Path Motor & Shafts Transfix Cam Shaft Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-7
  • Xerox 8500DN | Service Manual - Page 138
    LCD/LED outputs. Cycle LED Cycles the LED through a red/ Yellow/Green sequence. Set display dark Sets the LCD display dark. Test backlight Changes the display backlight from off to max. Set display light Sets the LCD display light. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 139
    check the ink shapes and the ink stick flags. Clears the PS NVRAM to be rebuilt with defaults at the next power up. Clears the PE NVRAM to be rebuilt with defaults at the next power up. Sets the PE NVRAM parameters to the default values. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-9
  • Xerox 8500DN | Service Manual - Page 140
    . Many of the tests rely on mechanical positions and slight changes can effect the results. Ensure that the printer is not out of paper, ink or maintenance kit life. The diagnostics routines are not designed to address all of these conditions consistently. If a test result differs significantly from
  • Xerox 8500DN | Service Manual - Page 141
    Pick Clutch R# Definition Typical Value (8400) 0 Peak Power (watts) 2.5 to 5.5 1 Average Power (watts) 2.5 to 5.5 Typical Value (8500/ 8550/8560) Actions 3.0 to 6.0 Reports max power value. 2.0 to 6.5 Reports the average power. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-11
  • Xerox 8500DN | Service Manual - Page 142
    Troubleshooting 4-12 Gathers data on the performance of the stripper solenoid coil and plunger. Strip Solenoid R# Definition Typical Value (8400) 0 Peak Power (watts) 8.0 to 15 1 Average Power (watts) 8.0 to 15 Typical Value (8500 Drum Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 143
    to "settle down" after the sudden addition of the deskew shaft load. A longer time could indicate a looseness in the deskew shaft assembly or a slipping clutch. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-13
  • Xerox 8500DN | Service Manual - Page 144
    General Troubleshooting Deskew Shaft (Continued) R# Definition Typical Value (8400) Typical Value (8500/ 8550/8560) wear or contamination (such as paper dust increasing the effective diameter of a roller). Reports the variation of effort Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 145
    contamination of a roller (causing a lump). Reports the time it takes the MP motor servo system to "settle down" after the sudden release of the deskew shaft load. A larger value could indicate a dragging or slow to release clutch. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-15
  • Xerox 8500DN | Service Manual - Page 146
    value could indicate a difference in the composition and/or number of the rollers, the nip pressure, or out of range mechanical dimensions due to wear or contamination (such as paper dust increasing the effective diameter of a roller). 4-16 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 147
    to "settle down" following the sudden addition of the wiper shaft load. A longer time could indicate a looseness in the wiper shaft assembly or a slipping clutch. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-17
  • Xerox 8500DN | Service Manual - Page 148
    (such as paper dust increasing the effective diameter of a roller). 0 to 8500/ 8550/8560) Actions 0 Off average MP fe. 800 to 1500 (mpts). Reports the average MP fe during the run in interval before the pick shaft is engaged. 4-18 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 149
    General Troubleshooting Tray 1 Pick Shaft (Continued) R# Definition Typical Value (8400) Typical Value (8500/ 8550/8560) and the followers, drag on the pick shaft, or problems with the drive gears (missing teeth, etc.). Reports Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-19
  • Xerox 8500DN | Service Manual - Page 150
    Troubleshooting 4-20 Tray 1 Pick Shaft (Continued) R# Definition Typical Value (8400) Typical Value (8500/ 8550/8560) Actions 4 Contact average fe. 120 to 2000 Reports the average MP fe while the pick roller indicate a slipping clutch. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 151
    indicate particles in the gears or non uniform contamination of a roller (causing a lump). Reports the time it takes the MP problem with the lifting mechanism (which could effect the following friction measurement), or media left in the tray. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 152
    or duplex path was selected. Paper Lead Edge Times R# Definition Common 0 Tray 1 Paper Size Typical Value (8400) Typical Value (8500/ 8550/8560) Actions Reports the tray from which the test paper was picked Reports the size of the picked paper. Phaser 8400/8500/8550/8560 Color Printer Service
  • Xerox 8500DN | Service Manual - Page 153
    the engine software is commanded to start the tray 2 pick process until the Deskew sensor activates. Reports the interval from the time the engine software is commanded to start the tray 1 pick process until the Deskew sensor activates. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-23
  • Xerox 8500DN | Service Manual - Page 154
    duplex path was selected. Paper Trail Edge Times R# Definition Common 0 Tray Typical Value (8400) 1 Paper Size Typical Value (8500/ 8550/8560) Actions Reports the tray from which the test paper was picked. Reports the picked media size. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 155
    Troubleshooting Paper part way through the paper transfix motion). Reports the interval from the time the engine software is commanded to start the exit process until the Strip sensor deactivates (part way through the paper exit motion). Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 156
    trailing edge. Reports the interval during which the Tray 3 pick sensor bounces following the passage of the paper trailing edge. Reports the interval during which the Deskew sensor bounces following the passage of the paper trailing edge. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 157
    Power (watts) Typical Value (8500/ 8550/8560) Actions Reports the tray from which the test paper was picked. Reports the size of the picked paper. Reports average of the power over the pick interval (begin pick to Deskew sensor). Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-27
  • Xerox 8500DN | Service Manual - Page 158
    to start the transfix process until the Exit sensor activates (part way through the paper transfix motion). Reports the interval from the time the engine software is commanded to start the exit process until the Exit sensor deactivates. 4-28 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 159
    start the exit process until the Strip sensor deactivates (part way through the paper exit motion). Reports the interval from the time the engine software is commanded to start the duplex pick process until the Exit sensor deactivates. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-29
  • Xerox 8500DN | Service Manual - Page 160
    the paper trailing edge. Reports the interval during which the Strip sensor bounces following the passage of the paper trailing Reports the interval during which the Exit sensor bounces following the passage of the paper trailing edge. 4-30 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 161
    distance up from the upper stall point at which the head lock latch releases. Reports the peak following error at the point the latch releases Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-31
  • Xerox 8500DN | Service Manual - Page 162
    direction. 0 to 1.5 .03 to .06 Reports the average drive ripple in the forward direction. Reports the time that the lower portion of the paper path drive is disconnected while the swing arm transitions to the other drive position. 4-32 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 163
    from the right hard stop to the left hard stop. An abnormal value may indicate a problem with roughness in the drive mechanism or an interference with the printhead motion. Same as R2 except unusual amount of play in the drive mechanism. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-33
  • Xerox 8500DN | Service Manual - Page 164
    during the Roll With Both Loaded interval. 3 Roller/Blade loaded -50 to 300 0 to 600 Y-Axis following error ripple (mpts) Reports the difference between the max and the min Y-Axis following error during the Roll With Both Loaded interval. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 165
    General Troubleshooting Drum Maintenance Drive (Continued) R# Definition Typical Value (8400) Typical Value (8500/ 8550/8560) Actions 4 Roller Average Period (sec) 50 to 1600 -.05 to tilt engage position to the pre standby peak. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-35
  • Xerox 8500DN | Service Manual - Page 166
    the required lift power starts to increase due to the initial contact with the Nudger Roller. Reports the interval from the motor start time until plate lifted is indicated. Reports the average stall power during the overlifting interval. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 167
    Drum Menu General Troubleshooting Uses the sine and cosine sum data to determine the characteristics of the encoder disk and encoder sensors. Y-Axis Encoder R# Definition Typical Value (8400) Typical Value (8500 amplitude values. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-37
  • Xerox 8500DN | Service Manual - Page 168
    the second most powerful FFT frequency (not including the drum or motor), to the FFT power amplitude of the drum frequency. -70 to 140 Reports the frequency of the second most powerful FFT frequency (not including the drum or motor). 4-38 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 169
    value to enter the idle ripple band. 7 HAHVN Delta Print 0.02 to Velocity Settle Time 0.10 (sec) 0 to .11 Reports the time following the start of motion that it takes YAxis delta velocity to enter the CCW delta velocity ripple band. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-39
  • Xerox 8500DN | Service Manual - Page 170
    during the roller down portion of drum set. Reports the number of full YAxis revs required to locate the min frequency configuration. Reports the amount of additional Y-Axis rotation required to locate the min frequency configuration. 4-40 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 171
    to drum interaction. The profile shape (R2/R2) could be a dynamic indication of the blade/drum interaction as is the static value reported by R0. Reports the magnitude of the reaction of the drum to the contact of the blade. (See R2) Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-41
  • Xerox 8500DN | Service Manual - Page 172
    (pm motor counts) Typical Value (8500/ 8550/8560) Actions Reports the distance the pm motor was moved (raising the dm unit), before a Y-Axis reaction was detected. Shows that the dm is raising, provides blade/drum gap information. 4-42 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 173
    Check Motors Menu General Troubleshooting This test turns on the Y-Axis motor and runs it very slowly for one revolution. Y-Axis Motor R# Definition Typical Value (8400) Typical Value (8500/ 8550/ motor drive power average value. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-43
  • Xerox 8500DN | Service Manual - Page 174
    General Troubleshooting This test turns on the process motor and runs it very slowly for one revolution. Process Motor R# Definition Typical Value (8400) Typical Value (8500/ 8550/8560) Actions the motor drive power average value. 4-44 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 175
    motor drive voltage. Reports the motor drive voltage average value. Reports amount of variation of the motor drive power. Reports motor drive power average value. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-45
  • Xerox 8500DN | Service Manual - Page 176
    General Troubleshooting Check Misc Menu This test looks at the paper path sensors to identify if anything would prevent a page from printing. The Control Panel will display messages indicating if anything unexpected is found for: R0 = upper paper path; R1 = tray 1; R2 = tray 2; R3 = tray 3; and R4
  • Xerox 8500DN | Service Manual - Page 177
    the drum, requiring both a wipe and a chase to clean up. Reports initial peak pumping power after pump power on. This reflects the inrush current to the pump motor. An unusual value could indicate a defective motor (windings/brushes/etc.). Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 178
    pressure is reached. May indicate the efficiency of the pump, leaks, and/or the setting of the pressure relief valve. Reports the time from pump on until the pressure relief valve the condition of the bleed orifice (plugged, etc.). 4-48 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 179
    ) 1 Upper hard stop wiper position (min) Typical Value (8500/ 8550/8560) Actions 50 to 400 Reports the distance from wipe home to the tilt engage position. 2000 to 5000 Reports the distance from wipe to home to the upper hard stop. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-49
  • Xerox 8500DN | Service Manual - Page 180
    General Troubleshooting This test drives the process motor a short distance in each direction to verify that the dmfix drive unit was in its home position. Drum Maint/Transfix Home R# Definition Typical Value ( the peak was detected. 4-50 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 181
    about 8 seconds. All LEDs are off during the test. If POST diagnostics pass, the Control Panel displays the Xerox logo and turns on the green LED. If the test detects an error, the error message displays on the LCD and the printer flashes the LEDs with a repeating error code pattern. 7. The VxWorks
  • Xerox 8500DN | Service Manual - Page 182
    is warm before moving to the print position. The dashed line traces what happens if the printhead was parked on last power down. The RED numbers indicate errors that may be displayed at that point in the mech init process. s8500-029 4-52 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 183
    General Troubleshooting _head Others..... - Thermal Faults, ECM Faults, HC, PM Faults oiling drum RECOVERY ROUTINE YES Home Dmfix NO 7002 Did the Process Motor Devise print position after the wipe and purge are performed. s8500-030 Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-53
  • Xerox 8500DN | Service Manual - Page 184
    Troubleshooting Mechanical Initialization (8500 may be displayed at that print position after the wipe and purge are performed. After the printer is warm, the head will tilt to the print position and Oil Drum 4 times DONE s8500-138 4-54 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 185
    is printed at this time, if a purge was performed. 12. A start page is printed (if enabled). 13. The Control Panel displays a message that the printer is initializing and then ready. 14. The print engine is initialized and is ready to print. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 186
    any static electricity. b. Turn off printer and wait 30 seconds for power supply capacitors to discharge. Damage to circuits within the Electronics Module may occur if the power supply capacitors are not allowed to fully discharge. 4-56 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 187
    than 1K ohm indicates a problem. b. To isolate problem to I/O board or related cabling, unplug I/O board connectors: ■ Umbilical Right J1 ■ Waste Tray Sense J110 ■ Stripper Solenoid J250 ■ Paper Tray Sense J610 ■ Front Door Sense J600 Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-57
  • Xerox 8500DN | Service Manual - Page 188
    in the printhead interface connector (J130) to the Electronics Module. This step adds the Control Panel back to a working Electronics Module and I /O board in order to see if the short circuit is also removed. e. Turn on power to the printer. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 189
    LCD failure in the Control Panel. b. Plug in all cables removed during service. Trace through all service steps performed to reattach any cables that were unplugged during debugging. c. Attach printer covers. d. Perform full test of printer. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 190
    Troubleshooting Display Functions, but Sent Jobs Do Not Print 1. Computer driver incorrect or improperly installed a. Verify printer hardware is functional by sending a test print via the printer Control Panel. b. If a test print is properly produced, continue to next steps, focusing on problems
  • Xerox 8500DN | Service Manual - Page 191
    proper configuration of printer using Control Panel. 2. Computer print driver configured incorrectly. a. Examine print driver setup to ensure printer driver setup doesn't override desired features set via Control Panel. 3. Configuration card failure. a. Verify configuration card is properly oriented
  • Xerox 8500DN | Service Manual - Page 192
    Troubleshooting a. Turn off printer and wait 30 seconds for power supply capacitors to discharge. b. Replace 525-Sheet Feeder. c. Perform full test of printer. Printer Does Not Print, LEDs are On and the Display is Frozen With No Errors 1. Nonspecific electronics failure. a. Double check PS
  • Xerox 8500DN | Service Manual - Page 193
    the Power light is on (not blinking) and the Control Panel displays Ready to Print it is now possible to print a stored page. 3. If a page prints, the print engine is working correctly. If not, a problem exists with the print engine. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-63
  • Xerox 8500DN | Service Manual - Page 194
    VAC nominal). 4. Proceed to the step, "Testing Motor and Solenoid Resistances" below. 5. If a heater shorts, F2 or F3 opens. The power supply does NOT shut down; however, a Service Required error code is displayed on the Control Panel. 4-64 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 195
    result in minor interferences in the printer. As examples: ■ Control Panel display can be affected (blank) ■ I/O board errors ■ False jam reporting ■ Erroneous thermistor readings ■ Major interruptions ■ Damage to the electrical boards Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-65
  • Xerox 8500DN | Service Manual - Page 196
    The following illustration shows the grounding points in the printer. Transfix Roller Ground Springs I/O Board Ground DM Ground Clip X-Axis Motor X-Axis Return Spring Ground Y-Axis Motor Media Path Drive Ground Ground s8500-032 4-66 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 197
    Troubleshooting 1. Turn off the printer and disconnect the power cord. 2. With a DMM set for measuring resistance, test each motor's windings for correct resistance (disconnected from the printer +/- 15% 186 ohms +/- 15% 124 ohms +/- 5% Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-67
  • Xerox 8500DN | Service Manual - Page 198
    dirty. Refer to page 7-4 for proper cleaning procedures. 7. Check that the Pick Roller is being rotated. 8. Run the Paper Path test. 9. Replace the Pick Roller if damaged. 10. Inspect the rollers, bushings and gears of the paper path. 4-68 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 199
    gearbox is in it's proper home position, refer to page page 6-8. 5. Run the paper path drive test. 6. Run the drum maintenance drive test. 7. Run the transfix fast and transfix slow. 8. Run the process motor and media drive motor tests. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-69
  • Xerox 8500DN | Service Manual - Page 200
    and/or take away rollers. Also make sure that the front door is properly closed. 8. The printer should be installed on a flat, level surface. 9. Ensure the paper preheater assembly is clean and properly seated into the printer frame. 4-70 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 201
    General Troubleshooting Print an internal test print from the printer's Control Panel to ensure the problem is not printer related. There is additional help available at www.xerox.com/office/support. You can access PhaserSMART Technical Support, Technical Support via email, driver downloads, and
  • Xerox 8500DN | Service Manual - Page 202
    7. Locate the Phaser 8400/8500/8550/8560 Color Printer icon and display its properties. 8. From the General tab, click the Print Test Page button to generate the test print. If the test page prints, the USB port is functioning normally. 4-72 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 203
    help troubleshoot the problem. You will need the following: ■ Computer with a serial port ■ Null modem serial cable ■ Serial cable adapter, part number 600T80374 (Same adapter used to run PC- based diagnostic on other Phaser printers.) Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-73
  • Xerox 8500DN | Service Manual - Page 204
    . 4. Click on the Port Settings tab. Set "Bits per second" to 19200, and set "Flow control" to Hardware, then click OK. 5. Set up a Hyper Terminal port on the PC. Click Start ->Programs -> Accessories -> Communications -> Hyper Terminal. 4-74 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 205
    capture. This data is saved as a text file to the location specified in step #7. Fax or email this data to EHS for help with troubleshooting problems on power up or other out of the ordinary problems where normal diagnostics may not run. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-75
  • Xerox 8500DN | Service Manual - Page 206
    General Troubleshooting 4-76 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 207
    Print-Quality Troubleshooting In this chapter... ■ Print-Quality Problems Overview ■ Analyzing Service Test Prints 5 Chapter
  • Xerox 8500DN | Service Manual - Page 208
    self-corrects within a few printed pages. If a print-quality problem is not resolved with the information provided in the Diagnosing Print-Quality Problems section, see the specific problem in "Analyzing Service Test Prints" on page 5-34. 5-2 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 209
    42. Discolored jets usually clear after two or three prints, using the problem jets. Yes Complete. No Go to Step 2. 3 Clean the exit path and Stripper Blade with a Complete. lint-free cloth. Did this correct the problem? Go to Step 4. Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-3
  • Xerox 8500DN | Service Manual - Page 210
    ■ Run the Eliminate Light Stripes routine from the Control Panel. ■ Check the exit path for debris or contamination. Troubleshooting Reference Applicable Parts ■ Printhead ■ Drum Maintenenace Kit ■ Stripper Carriage Example Print 5-4 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 211
    Control Panel. ■ Check the exit path for debris or contamination. Troubleshooting Reference Applicable Parts ■ Drum Maintenenace Kit ■ Drum Maintenance Pivot Plate ■ Drum Maintenenace Camshaft ■ Preheater ■ Stripper Carriage Example Print Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 212
    6. 6 1. Check the Drum Maintenance Pivot Plate Complete. for damage. 2. Check the Drum Maintenenace Camshaft rollers are working properly. 3. Replace any damaged or defective parts. Did this correct the problem? Replace the Preheater. 5-6 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 213
    is supported by this printer. ■ Check the media settings are correct at the Control Panel. Troubleshooting Reference Applicable Parts ■ Ink Sticks ■ Media Example Print s8500-034 Print Too Light or Too Dark Troubleshooting Procedure Step Questions and Actions Yes 1 Check that the paper type
  • Xerox 8500DN | Service Manual - Page 214
    sheet of paper, but no image is printed on it. Note Blank sheets accompanying multi-picks or chase pages following a jam are a part of normal operation. Initial Actions ■ Check the media used is supported by this printer. ■ Check the media settings are correct at the Control Panel. Troubleshooting
  • Xerox 8500DN | Service Manual - Page 215
    3 times. If improvement is seen, the ink could be discolored. Did this correct the problem? 2 Clean the Drum Maintenance Kit wiper blade Complete. or replace the kit. Did this correct the problem? s8500-034 No Go to Step 2 Go to Step 3. Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-9
  • Xerox 8500DN | Service Manual - Page 216
    in contact with the Drum. Clean or replace the Drum Temperature Sensor. Did this correct the problem? No Go to Step 5. Replace the Drum Fan. Replace in the following order: ■ Drum Heater Relay Board ■ Drum Assembly ■ Electronics Module 5-10 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 217
    Kit, Printhead, and Stripper Blade for anything touching the Drum. 2. Reseat any component interfering or touching the Drum. 3. Clean the Stripper Blade. Did this correct the problem? s8500-035 No Go to Step 2. Go to Step 3. Go to Step 4. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 218
    Duplex Roller or duplex guides. Run the Service Diagnostics Duplex Path test. Is the operating temperature within the correct value range? No Go to Step 5. Go to Step 6. Go to Step 7. Go to Step 8. Replace the Electronics Module. 5-12 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 219
    Check the media used is supported by this printer. ■ Check that the paper path is clean and clear of debris. Troubleshooting Reference Applicable Parts ■ Stripper Blade ■ Drum Maintenance Kit ■ Preheater ■ Media Guides Example Print Scratches or Marks Troubleshooting Procedure Step Questions and
  • Xerox 8500DN | Service Manual - Page 220
    back and forth several times and then remove the paper. Be careful of the sensor flags. Did this correct the problem? Go to Step 7. 7 Inspect all paper guides for nicks, cuts, or Clean or replace any defective debris. paper guide(s). 5-14 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 221
    paper commonly causes this problem. Initial Actions ■ Check the media used is supported by this printer. ■ Check that the paper path is clean and clear of debris. Troubleshooting Reference Applicable Parts ■ Stripper Blade ■ Drum Maintenance Kit ■ Preheater ■ Transfix Roller Example Print Ink
  • Xerox 8500DN | Service Manual - Page 222
    Complete. of paper dust and oil can produce dark rectangular marks on transparency film. 2. Run Remove Print Smears. 3. Replace the rollers if necessary. Did this correct the problem? No Go to Step 4. Go to Step 5. Go to Step 6. 5-16 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 223
    image displays an X-axis movement problem. Initial Actions ■ Check the media used is supported by this printer. ■ Check that the paper path is clean and clear of debris. Troubleshooting Reference Applicable Parts ■ Drum Temperature Sensor ■ Y-Axis Encoder ■ X-Axis Motor ■ Printhead Example Print
  • Xerox 8500DN | Service Manual - Page 224
    used is supported by this printer. ■ Check that the paper path is clean and clear of debris. Troubleshooting Reference Applicable Parts ■ Drum Temperature Sensor ■ Y-Axis Encoder ■ X-Axis Motor ■ Printhead Example Print s8500-039 5-18 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 225
    (Pinstripes)" on page 5-30. Electronics Did this correct the problem? Module. 4 Try the procedure listed on "Black, Red, Green, Blue, Cyan, Magenta, and Yellow Solid Fills" on page 5-42. Did this correct the problem? Complete. Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-19
  • Xerox 8500DN | Service Manual - Page 226
    used is supported by this printer. ■ Check that the paper path is clean and clear of debris. Troubleshooting Reference Applicable Parts ■ Drum Maintenenace Kit ■ Drum Maintenance Pivot Plate ■ Drum Maintenenace Camshaft ■ Drum Temperature Sensor Example Print Ghosting Troubleshooting Procedure
  • Xerox 8500DN | Service Manual - Page 227
    the Drum Temperature Sensor with Complete. Service Diagnostics. 2. Check that the Drum Termperature Sensor is clean and properly positioned. Did this correct the problem? No Go to Step 4. Go to Step 5. Replace the Drum Temperature Sensor. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 228
    ■ Check the media used is supported by this printer. ■ Check that the paper path is clean and clear of debris. Troubleshooting Reference Applicable Parts ■ Drum Temperature Sensor ■ X-Axis Motor Example Print Poor Small Text Resolution Troubleshooting Procedure Step Questions and Actions Yes
  • Xerox 8500DN | Service Manual - Page 229
    parts. Did this correct the problem? Go to Step 3. 3 Test the Y-Axis Encoder. 1. Run the Service Diagnostics Y-Axis Encoder test. Is the Y-axis encoder working properly? Go to Step 4. Clean the Drum encoder or replace the Drum Assembly. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 230
    Oil Streaks on Print Troubleshooting Procedure Step Questions and Actions Yes 1 Check and clean the Drum Maintenance Kit Complete. wiper blade. Replace the kit if necessary. Did this correct the problem? s8500-042 No Go to Step 2. 5-24 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 231
    parts; check for cracking: ■ Drum Maintenance Pivot Plate ■ Drum Maintenance Camshaft Did this correct the problem? Complete. No Go to Step 3. Go to Step 4. Go to Step 5. Replace the pivot plate or Drum maintenance cam roller if damaged. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 232
    the media used is supported by this printer. ■ Check that the paper path is clean and clear of debris. Troubleshooting Reference Applicable Parts ■ Drum Temperature Sensor ■ Drum Maintenance Kit ■ Drum Maintenance Pivot Plate ■ Drum Maintenance Camshaft Example Print Incomplete Image Transfer
  • Xerox 8500DN | Service Manual - Page 233
    Troubleshooting Procedure (Continued) Step Questions and Actions Yes 4 Check and clean the Drum Maintenance Kit Complete. wiper blade. Replace the kit if necessary. Did this correct the problem? 5 1. Test the Drum Temperature Sensor with Complete. Service Diagnostics. 2. Check that the Drum
  • Xerox 8500DN | Service Manual - Page 234
    For 8500/8550/8560 models only. If the customer is manually duplexing, check that the customer is selecting the second side in the print driver. ■ Check the media used is supported by this printer. ■ Check that the paper path is clean and clear of debris. Troubleshooting Reference Applicable Parts
  • Xerox 8500DN | Service Manual - Page 235
    . Initial Actions ■ Check the media used is supported by this printer. ■ Check that the paper path is clean and clear of debris. Troubleshooting Reference Applicable Parts ■ Transfix Roller ■ Drum Assembly Example Print Repeating Defects Troubleshooting Procedure Step Questions and Actions Yes
  • Xerox 8500DN | Service Manual - Page 236
    the print. Initial Actions ■ Check the media used is supported by this printer. ■ Check that the Printhead is free to move in the horizontal direction. Troubleshooting Reference Applicable Parts ■ X-Axis Motor Example Print s8500-046 5-30 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 237
    side of a 2-sided print on the secondary colors. This indicates the Preheater is too open on the duplex side of the print. Note On the paper's packaging, an underline under the 11 (in 8.5 in. x 11 in.) indicates the paper is long-grain. Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-31
  • Xerox 8500DN | Service Manual - Page 238
    the Complete. Drum Maintenance Kit. Did this correct the problem? Go to Step 5. 5 Inspect the transfix components. Replace in the following order: ■ Transfix Roller ■ Transfix Camshaft ■ Transfix Load Arms ■ Transfix Load Module. 5-32 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 239
    that the Drum Temperature Sensor is properly positioned and has no contamination between it and the Drum surface. Image durability is almost always an issue with the paper being used. It is never an issue with the printer's Printhead. Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-33
  • Xerox 8500DN | Service Manual - Page 240
    may be a problem in the Purge Pump or the Wiper Assembly. Verify that Xerox ink is being used. Follow the instructions on the "Printhead Troubleshooting Checklist". Note Include two prints of this test print with any returned Printhead. 5-34 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 241
    is a text print This is a text print This is a text print This is a text print This is a text print This is a text print This is a text print This is a text print This is a text print This is a text print < current setpoint s8500-049 Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-35
  • Xerox 8500DN | Service Manual - Page 242
    caused by color-to-color misregistration. Use the diagnostics to ensure that the Printhead and Drum thermals are correct. Follow the instructions on the "On-site Printhead Troubleshooting Checklist (8400)" on page A-8 Banding s8500-050 5-36 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 243
    sure that the Drum Temperature Sensor is correctly mounted and in proper, even contact with the Drum. If necessary, remove the sensor and check it for an accumulation of debris at its contact point. Replace the Drum Temperature Sensor. Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-37
  • Xerox 8500DN | Service Manual - Page 244
    the transparency that is supported for this printer. Clean or replace the paper release blade. For more information about scratches, see "Scratches or Marks Parallel to the Long Axis of Printing, Particularly with Film" on page 5-13 5-38 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 245
    match. Inspect the transfix load arm return springs. Verify that the maintenance kit returns home between prints. Inspect the cam shaft surfaces for damage. If all of these items are working correctly, replace the process drive module. Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-39
  • Xerox 8500DN | Service Manual - Page 246
    do not repeat down the page. Transfix Roller defects do not move in the X-direction; but, these defects repeat every 4.58 in. (11.63 cm) down the length of the page. Many Transfix Roller defects will be most visible on duplex solid fills 5-40 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 247
    the head-to-drum gap under much tighter control than in previous solid ink printers. There is no head-to-drum adjustment possible in this printer. If the gap is suspect, check that the Printhead is correctly and completely installed. Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-41
  • Xerox 8500DN | Service Manual - Page 248
    the Transfix Arm movement. If either of the Transfix Arm assemblies are worn, replace the arm. If there are repeating white stripes on the print, there may be a problem with the X-Axis motion, see "White Stripes (Pinstripes)" on page 30. 5-42 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 249
    . If you have skew on simplex prints in Trays 2, 3, or 4, check for a worn take away roller or pick roller; in Tray 1, check for a worn pick roller. This test print uses the tray selected in Paper Source on the Paper Handling Menu. Phaser 8400/8500/8550/8560 Color Printer Service Manual 5-43
  • Xerox 8500DN | Service Manual - Page 250
    Test and Specialty Prints s8500-058 The following prints are used by Manufacturing and Engineering for development and test. ■ Manuf. Five Duplex GSF ■ Drum Seal (8400 only) is not supported for this printer. ■ Manuf. Paper Path ■ Manuf X-Axis (Scanner) (8400 only) ■ OHP Color Bands (8400 only
  • Xerox 8500DN | Service Manual - Page 251
    Adjustments and Calibrations In this chapter... ■ Printer Component Homing Positions and Indicators ■ Jet Substitution Mode ■ Jet Substitution Mode 6 Chapter
  • Xerox 8500DN | Service Manual - Page 252
    Wiper Alignment Procedure 1. Remove the printer covers using the procedures that begin on page 8-4. 2. Remove the left head maintenance drive gear by removing the e-clip from the drive shaft. Left Idler Gear Left Drive Gear s8500-059 6-2 Phaser 84000/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 253
    not skewed. Rotate left and right idler gears to lower wiper. Wiper skewed when lowering. 4. Replace the left drive gear and the e-clip. s8500-060 Phaser 84000/8500/8550/8560 Color Printer Service Manual 6-3
  • Xerox 8500DN | Service Manual - Page 254
    When the Wiper Assembly is homed, the Wiper Blade should be moved all the way to the bottom of the printer. When the Wiper Blade is at the bottom, you can easily remove the Waste Tray. See the "Wiper Alignment Procedure" on page 6-2. 6-4 Phaser 84000/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 255
    Is Not in the Printer If the Printhead is removed, manually rotate the Head Tilt Gear, located on the inside of the left frame, to its disengaged position. Drum Printhead DM Cam Gear Tilt gear (disengaged) Tilt Gear Phaser 84000/8500/8550/8560 Color Printer Service Manual s8500-061 6-5
  • Xerox 8500DN | Service Manual - Page 256
    manually assist the movement of the Printhead. Note The hole on the Drum Maintenance Camshaf drive gear should be at the 6:00 position after the rotation. Insert screwdriver and rotate clockwise. Drum maintenance camshaft gear s8500-062 6-6 Phaser 84000/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 257
    Adjustments and Calibrations Note When the tilt gear is disengaged, the two arrows on the left side of the printer are pointing at each other. Tilt Gear Disengaged Tilt Gear Engaged s8500-063 Phaser 84000/8500/8550/8560 Color Printer Service Manual 6-7
  • Xerox 8500DN | Service Manual - Page 258
    Hole in gear aligns with arrow on frame s8500-064 When correctly homed, slightly rotating the Drum Maintenance Camshaft in either direction should result in a proportional movement of the Drum Maintenance Kit - with no delays or lags. 6-8 Phaser 84000/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 259
    the Drum Maintenance Camshaft. s8560-198 2. Pin the Process Drive gears using a paper clip or similar object to keep the gear set in its disengaged orientation during removal and replacement. 3. Remove the Process Drive (page 8-43). Phaser 84000/8500/8550/8560 Color Printer Service Manual 6-9
  • Xerox 8500DN | Service Manual - Page 260
    the direction indicated by the arrow to the Drum Maintenance Kit and Drum Maintenance Pivot Plate to force these components against the Drum Maintenance Camshaft. This forces the cam to home or put undue strain on the mounting bosses. 6-10 Phaser 84000/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 261
    the guides provided on the Process Drive gearbox. 10. Replace the covers and test the installation. Replacement Note Tighten the Process Drive screws to 12 in. lbs. Over tightening can result in irreversable damage to the printer. Phaser 84000/8500/8550/8560 Color Printer Service Manual 6-11
  • Xerox 8500DN | Service Manual - Page 262
    , and then press the OK button. 2. Scroll to Print Quality Problems, and then press the OK button. 3. Press and hold the Up Arrow button, then press the Back button. The Jet Substitution Mode is now displayed on the Control Panel. 6-12 Phaser 84000/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 263
    color. Note The Configuration and Printer Status pages also list jets in Service Mode (substituted). Enabling Jet Substitution Mode (8500/8550/8560) To select Jet Substitution Mode for 8500/8550/8560 models: 1. Select Troubleshooting, and then press the OK button. 2. Select Print Quality Problems
  • Xerox 8500DN | Service Manual - Page 264
    -stored parameters to their factory default values. The print counts and the Adobe firmware serial number are not affected by this reset. You can reset the PostScript NVRAM using the Service Tools menu or the Service Diagnostics menu. 6-14 Phaser 84000/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 265
    Cleaning and Maintenance In this chapter... ■ Maintenance ■ Inspection ■ Cleaning 7 Chapter
  • Xerox 8500DN | Service Manual - Page 266
    paper jams inside the printer or at the media tray if the rollers are visibly dirty. ■ Wiggly vertical stripes caused by too much oil created by a dirty Drum Maintenance Kit blade. ■ Most print-quality problems can be corrected by running the cleaning procedures on the printer's Control Panel menu
  • Xerox 8500DN | Service Manual - Page 267
    Maintenance Ink Smears, Oil Spots, or Random Ink Streaks Problem type Solution Ink smears on the front, back, or edges of a page. Select the automated procedure Remove Print Smears from the Control Panel. Check the maintenance kit for ink and paper-dust build-up on the wiper blade. Oil (Drum
  • Xerox 8500DN | Service Manual - Page 268
    Kit The printer uses the Drum Maintenance Kit as part of its self-maintenance routine to coat the print Drum with oil before each print. Drum Maintenance Kit Life Standard/Startup Maintenance Kit Life P/N 108R00602 (8400) P/N 108R00675 (8500/8550/8560) Any Coverage* 10,000 cycles for black
  • Xerox 8500DN | Service Manual - Page 269
    Kit is "empty," replace the kit to continue printing. Note The Drum Maintenance Kit fluid, an oil, poses no known adverse health effects. See the Material Safety Data Sheet at www.xerox.com/office/ msds. The Waste Tray collects ink that has been purged from the ink jets. A Control Panel message
  • Xerox 8500DN | Service Manual - Page 270
    problems: ■ Loose rubber particles below the belts indicate a worn belt. ■ Missing teeth in the belts ■ Cracking or moderate fraying; a small amount of fraying is inevitable, so look for other signs of wear before replacing the belt. 7-6 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 271
    Service Parts Disassembly In this chapter... ■ Overview ■ General Notes on Disassembly ■ Covers ■ Imaging ■ Paper Path ■ Motors, Gears, Solenoids, Clutches, and Fans ■ Electronics 8 Chapter
  • Xerox 8500DN | Service Manual - Page 272
    needed the orientation of the printer is called out in the procedure for locating printer parts. Refer to the printer orientation graphic for locating the right, left, front and back sides of the printer. Back Left Front Right s8500-002 8-2 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 273
    to a part or step being performed. ■ The notation "PLX.X.X" indicates that this component is listed in the Service Parts List. ■ Bold arrows in an illustration show direction of movement when removing or replacing a component. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-3
  • Xerox 8500DN | Service Manual - Page 274
    Service Parts Disassembly Covers Front Door/Tray 1 Assembly (PL1.0.1) 1. Open the Front Door by pulling out on the handle to the Retainer 1 2 Stay Retainer 3 s8500-066 Note Do not lose the hinge pins or stay retainers for the Front Door. 8-4 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 275
    Panel Cover (page 8-5). 3. Open the Front Door. 4. Remove the rear screw. 5. Pull forward on the latching tab located by the power plug to release it. 6. Release the front latching tab and pull out on the top to remove the Right Side Cover. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 276
    just lift off the printer. Replacement Note Lift the upper exit guide slightly, and engage the pins on the upper exit guide with the slots on the Exit Cover before inserting the cover hinge pins into the pivot points in the printer frame. 8-6 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 277
    left side (see inset). For the 8500/8550/8560, the harness comes from the side of the chassis and plugs directly into the Ink Loader. After replacing the 8500/8550/8560 Ink Loader, reset the ink stick count, using the Hidden Service Menu. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-7
  • Xerox 8500DN | Service Manual - Page 278
    the printer to keep it from moving during removal of the spring. Caution This is a strong spring that can cause damage if it slips during removal; use care when removing. 5. Move the wires out of the way. 6. Disconnect the motor harness. 8-8 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 279
    Service Parts Disassembly 7. Remove 3 screws (3 coarse thread and 1 fine thread) from the spring arm. The 3 screws securing the arm the spring arm to 20 in.lbs. Irreversible damage can result from over tightening screws into plastic parts. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-9
  • Xerox 8500DN | Service Manual - Page 280
    faceplate of the Printhead. 4. While pulling back slightly on the Printhead to keep it away from the Drum, unlock (push down) the Right and Left Printhead Restraint arms, then slowly allow the spring-loaded Printhead to tilt forward. 8-10 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 281
    the hook to rest against the detents in the frame. Purge Pump Bias Spring Hook 1. 2. 6. Disconnect the air hose from the Purge Pump. s8500-074 Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-11
  • Xerox 8500DN | Service Manual - Page 282
    Service Parts Disassembly 7. Remove Left and Right Printhead Restraints. First remove the screw, then of the Printhead shaft. Caution The Roll Block may be hot if the printer was just shut down. Printhead Shaft Roll Block s8500-076 8-12 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 283
    place the shaft ends in the cradle notches near the top of the chassis frame. Cradle Notches 11. Disconnect the data cable from the Printhead. Phaser 8400/8500/8550/8560 Color Printer Service Manual s8500-078 8-13
  • Xerox 8500DN | Service Manual - Page 284
    on the back of the Printhead and does not pinch the air hose. 9. Set the X-Axis Hook and spring on the end of the left Printhead shaft. Ensure that the point of the hook is centered in the shaft and the rest of the hook floats freely. 8-14 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 285
    Service Parts Disassembly 10. After completing the installation, print the Light Stripes Page and check for jets in service mode. If necessary, use the Control Panel to reset the jet substitution mode. Head Tilt Solenoid snap into place. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-15
  • Xerox 8500DN | Service Manual - Page 286
    (page 8-10). 2. Using your hands, a spring hook, or pliers, remove the X-Axis Bias Spring from inside the printer cavity. X-Axis Bias Spring s8500-080 Replacement Note Do not rotate the spring more than 1/4 turn during installation. 8-16 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 287
    Wiper Assembly (PL2.0.17) Service Parts Disassembly Caution Place several sheets of paper between the Printhead and the Drum to protect the Drum from damage. 1. Remove the Printhead (page 8-10). 2. gently slide the Wiper off the belts. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-17
  • Xerox 8500DN | Service Manual - Page 288
    a small needle-nose plier until the belt is secured in the clip. Wiper Belt Wiper Clip s8500-082 Note Later versions of 8500/8550 models serial numbered WYN1xxxxx or WYP1xxxxx use the wider style Wiper Belt and 8400 model Wiper Blade. 8-18 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 289
    the way. 5. Loosen 1 screw securing the Transfix Roller Shaft Restraint and remove the restraint. 6. Use the end of the Transfix Roller shaft restraint to remove the shaft. 7. Remove the Stripper Carriage and Transfix Roller. Phaser 8400/8500/8550/8560 Color Printer Service Manual s8500-083 8-19
  • Xerox 8500DN | Service Manual - Page 290
    s8500-084 5. Slide the latches in and forward to latch in their slots. Note Preheaters in 8500/8550/8560 models are more difficult to slide out than the 8400 versions because of reduced clearance with the Preheater Lift Solenoid. 8-20 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 291
    slide the shaft toward the left to free the right end of the shaft. Finally, pull the shaft out towards the right side of the printer. KL-Clip 3 1 2 Bearing Phaser 8400/8500/8550/8560 Color Printer Service Manual s8500-086 8-21
  • Xerox 8500DN | Service Manual - Page 292
    can damage the Transfix Load Module. Also, placing too much force in the leverage action could destroy the cam. Transfix Load Module s8500-087 8-22 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 293
    the Transfix Load Arms and Transfix Roller. Clevis Pin Transfix Load Arm Add Grease s8500-088 10. Remove the Transfix Camshaft (page 8-25) 11. Remove the grounding springs from the Transfix Load Module. Grounding Springs Phaser 8400/8500/8550/8560 Color Printer Service Manual s8500-089 8-23
  • Xerox 8500DN | Service Manual - Page 294
    Service Parts Disassembly 12. Remove two screws securing each end of the Transfix Load the Exit Module, perform the Wiper Alignment procedure on page 6-2. The printer may report error 7,009.4x if the Wiper Assembly is misaligned. 8-24 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 295
    Transfix Camshaft (PL2.0.10) Service Parts Disassembly 1. Perform Steps 1 through 7 (remove Transfix Load Arms printer, lift the shaft through the slot, and pull it out to the right through the large hole. Drum Maintenance Camshaft Bushing Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 296
    Service Parts Disassembly Drum Maintenance Pivot Plate (PL2.0.16) 1. Remove the Drum Maintenance Kit. 2. Remove (black/white). 8. Feed the cable into the printer while sliding the Drum Maintenance Pivot Plate out the Drum Maintenance Kit cavity Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 297
    and free the cable from the retaining hook. 13. Unplug the Drum encoder cable connector from the Power Control Left Cable and free the cable from the retaining hook. 14. Unplug the Drum Temperature Sensor connector from the I/O Board. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-27
  • Xerox 8500DN | Service Manual - Page 298
    handed screws (8500/8550/8560) and washers from the right side of the Drum Assembly. Note that one of the screws has no washer. The 8400 uses 3 right-handed screws. 18. Remove 3 screws and washers from the left side of the Drum Assembly. 8-28 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 299
    the bottom location (without a washer) and the front location (with a washer) on the right side of the Drum Assembly. 7. Spread apart the chassis handles near the left and right labyrinth seals to ensure the bearing is properly sealed. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-29
  • Xerox 8500DN | Service Manual - Page 300
    23. Pass the Stripper Blade Solenoid harness through the right side of the chassis and seat the Lower Inner Duplex Guide on the four mounting pins on the chassis. 24. Install the Ink Loader (page 8-7). 25. Reinstall all covers and doors. 8-30 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 301
    Purge Pump (PL2.0.7) Service Parts Disassembly 1. Remove the Left Side Cover (page 8-6). 2. Disconnect the air hose from the Purge Pump otherwise specified. Irreversible damage can result from over tightening screws into plastic parts. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-31
  • Xerox 8500DN | Service Manual - Page 302
    Service Parts Disassembly Paper Path Exit Module (PL3.0.13) Caution The Drum Temperature Sensor harness is routed through the Exit the Wiper Alignment (page 6-2). The printer may report error 7,009.4x if the Wiper Assembly is misaligned. 8-32 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 303
    remove the guide. Lower Exit-Guide Assembly with Strip Flag (PL3.0.3) 1. Open the Exit Cover. 2. Lift upward on the center of the guide, then flex the left retainer inward to remove it. 3. Remove the right retainer and remove the guide. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-33
  • Xerox 8500DN | Service Manual - Page 304
    1. Remove the Right Side Cover (page 8-5). 2. Remove the Outer Duplex Guide. 3. Disconnect the solenoid connector from the I/O Board and release the harness from the right side frame. 4. Remove the Upper Duplex Guide from the printer. 8-34 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 305
    Lever Upper Duplex Guide s8500-099 Replacement Note Route the Stripper Solenoid harness through the right side frame when replacing the Upper Duplex Guide. Also, verify that the solenoid lever engages the hole in the Stripper Carriage. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-35
  • Xerox 8500DN | Service Manual - Page 306
    the Take Away Roller and Duplex Roller until all shafts seat properly. Check that the Media Drive is correctly positioned on the side frame. Install and torque the 6 screws to 12 in. lbs. Finally, check that all rollers rotate freely. 8-36 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 307
    toward the left, the grey rollers should face you. Position the roller back about 5 cm (2 inches) in the tray cavity. Push the Pick Assembly up into the chassis and snap it into place. Then, rotate the Pick Assembly up and back to latch. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-37
  • Xerox 8500DN | Service Manual - Page 308
    Service Parts Disassembly Retard Roller Repalcement 2 1 s8500-102 1 2 s8500-103 8-38 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 309
    Gear (PL4.0.6) Service Parts Disassembly 1. Remove the Electronics Module (page 8-46). 2. Remove Tray 2. 3. Disconnect the harness from the Tray Lift Motor. 4. From the rear of the printer, inside the cavity seat the nut on the shaft. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-39
  • Xerox 8500DN | Service Manual - Page 310
    Service Parts Roller and Duplex Roller until all shafts seat properly. Check that the Media Drive is correctly positioned on the side frame. Install and torque the 6 screws to 12 in. lbs. Finally, check that all rollers rotate freely. 8-40 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 311
    Tray 1 Pick Solenoid (PL4.0.3) Service Parts Disassembly 1. Remove the Left Side Cover (page 8-6). 2. Disconnect the solenoid harness. 3. Remove 1 screw from the Drive. Install and torque the screw to 12 in. lbs. Reconnect the harness. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-41
  • Xerox 8500DN | Service Manual - Page 312
    Module. s8500-134 Replacement Note Align the hole on Transfix Load Module. Install and torque the screw to 15 in. lbs. Reconnect the harness. 8-42 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 313
    .0.14) Service Parts Disassembly Caution Replacement drives come with two pins to hold the gears in position. Use either the pins that come with replacement drives, or a paper clip, the harness from the Process Drive motor. Phaser 8400/8500/8550/8560 Color Printer Service Manual s8500-107 8-43
  • Xerox 8500DN | Service Manual - Page 314
    Service Parts Disassembly Replacement Note After replacing the Process Drive, Drum Maintenance Pivot Plate or the Drum Maintenance Camshaft (or any component requiring removal of the Process Drive), the printer may experience Front Cover jams from Tray 2. The jam occurs with paper in the Preheater
  • Xerox 8500DN | Service Manual - Page 315
    Head Tilt Gear (PL4.0.9) Service Parts Disassembly 1. Remove the Printhead (page 8-10). 2. At the left side, remove the KL-clip. 3. the curved (cam) surfaces of the gear using a small quantity of Rheolube 768 grease (P/N 070E00890). Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-45
  • Xerox 8500DN | Service Manual - Page 316
    Service Parts Ink 8500/8550/8560) s8500-110 Replacement Note When replacing the Electronics Module, transfer the Configuration Card, NVRAM (page 8-50), SODIMM RAM (page 8-51), and Hard Drive (page 8-52, if installed) to the new module. 8-46 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 317
    Wave Amplifier (PL5.0.4) Service Parts Disassembly Note Do not fully remove EMI tape, if included with any connector. 1. Remove the Electronics Module (page T-shaped strain relief on the cable is nearest the Wave Amp on installation. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-47
  • Xerox 8500DN | Service Manual - Page 318
    Service Parts Disassembly I/O Board (PL5.0.13) 1. Remove the Right Side Cover (page 8-5). 2. Disconnect all connections to the I/O Board. 3. Remove on reassembly. Install and torque the 2 screws to 12 in. lbs. Reconnect all connections. 8-48 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 319
    Drum Heater Relay Board. Drum Heater Relay Board s8500-113 Replacement Note Ensure that no wires are routed behind the Drum Heater Relay Board during reinstallation. Install and torque the 2 screws to 12 in. lbs. Reconnect all connections. Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 320
    Service Parts Disassembly Download the snippet titled "setsn.ps" from the Support web site. 5. Edit the snippet to include the printer serial number, using a text editor. 6. Download the edited file to the printer using an FTP program. 8-50 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 321
    in the Electronics Module. 8400 8500/85008560 s8500-115 4. Insert the new DIMM chips into the sockets. 5. Swing the DIMM chips to their secure position against the electronics module and snap them into their respective connectors. Phaser 8400/8500/8550/8560 Color Printer Service Manual 8-51
  • Xerox 8500DN | Service Manual - Page 322
    Service Parts Disassembly Hard Drive (PL5.0.7) Caution Some semiconductor components, such as the NVRAM chip, are vulnerable 2 1 3 3 3 4. Reattach the 2 connectors to the replacement Hard Drive. 5. Replace the Back Cover. s8500-116 8-52 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 323
    Parts Lists In this chapter... ■ Serial Number Format ■ Using the Parts List ■ Xerox Supplies 9 Chapter
  • Xerox 8500DN | Service Manual - Page 324
    rolled when a major product change occurs. Initiated with a change request. SSSSS - Five digit numeric serial number. Serial Number Example: RPC453072: 4 = Revision level 53072 = Serial number 9-2 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 325
    the other end that is plugged into P2. Note Only parts showing part numbers are available for support. Parts not showing part numbers are available on the parent assembly. Legend: Identifier C E KL S Meaning C-ring E-ring KL-clip Screw Phaser 8400/8500/8550/8560 Color Printer Service Manual 9-3
  • Xerox 8500DN | Service Manual - Page 326
    Parts Lists PL 1.0 Covers 6 7 5 8 9 13 2 3 4 12 2 3 4 1 11 10 14 s8500-117 9-4 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 327
    848K12760 (8560) 1 See PL2.0.1 1 200467680 (8400) 802K93660 (8500/8550/8560) 1 200467580 (8400) 802K93570 (8500/8550/8560) 1 200469480 (8400) 802E93870 (8500/8550/8560) 1 200468480 (8400) 802E93860 (8500/8550/8560) 1 802E93880 1 109R00736 Phaser 8400/8500/8550/8560 Color Printer Service Manual 9-5
  • Xerox 8500DN | Service Manual - Page 328
    Parts Lists PL 2.0 Imaging 1 2 4 3 19 18 20 7 12 8 13 14 15 16 17 11 10 5 6 21 9 18 8500 118 9-6 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 329
    ) 041K06500 (8500/8550/8560) 1 022E32290 1 809E69920 1 386739380 (8400) 137E24130 (8500/8550/8560) 1 020K15100 1 119641980 (8400) 126E02721 (8500/8550/8560) 1 401101280 (8400) 059K50011 (8500/8550/8560) 1 019E75180 1 809E69940 1 809E69930 Phaser 8400/8500/8550/8560 Color Printer Service Manual 9-7
  • Xerox 8500DN | Service Manual - Page 330
    Parts Lists PL 3.0 Paper Path 4 5 8 7 2 1 9 10 11 13 6 3 12 s8500-119 9-8 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 331
    Parts Lists Parts List 3.0 Paper Path No. Name/Description Qty Part Number 1 Inner Simplex Guide 2 Lower Inner Duplex Guide 3 Lower Exit Guide Assembly with Strip Flag 4 Outer Duplex Paper Guide with Sensors (Safety Interlocks) 5 Upper Duplex Guide with Solenoid 6 Exit Roller 7 Take Away Roller
  • Xerox 8500DN | Service Manual - Page 332
    Parts Lists PL 4.0 Motors, Gears, Solenoids, Clutches, and Fans 4 5 8 9 3 15 7* 6 2 1 14 10 11 12 13 s8500-120 9-10 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 333
    Assembly 1 127K53580 13 Drum Cooling Fan 1 119641780 (8400) 127E16010 (8500/8550/8560) 14 Gearbox and Motor, Process Drive 1 401100080 (8400) 005K12670 (8500/8550/8560) 15 Ground Clip, Pick Clutch 1 650442700 (8500/8550/8560) Phaser 8400/8500/8550/8560 Color Printer Service Manual 9-11
  • Xerox 8500DN | Service Manual - Page 334
    Parts Lists PL 5.0 Circuit Boards 12 19 18 6 5 3 4 11 12 13 17 15 16 7 8 9 10 14 s8500-121 9-12 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 335
    (8560) 1 174448680 (8400) 117E29790 (8500/8550/8560) 1 117E29820 1 671529100 (8400) 960K22331 (8550/8550) 1 174451180 (8400) 117E29810 (8500/8550/8560) 1 117E29830 1 117E28790 1 960K35170 1 117E28780 1 117E35230 (8500/8550/8560) Phaser 8400/8500/8550/8560 Color Printer Service Manual 9-13
  • Xerox 8500DN | Service Manual - Page 336
    Parts Lists PL 6.0 Sensors and Flags (Actuators) 3 6 1 4 5 2 7 8 s8500-122 9-14 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 337
    5 Paper Present Flag 6 Exit Flag 7 Sensor Assembly, Paper Tray 8 Waste Tray Detect Sensor Parts Lists Qty Part Number 1 130K75210 1 130E11530 1 110E20390 1 130K75220 1 130E11550 1 386732680 1 130K75230 1 130E12620 Phaser 8400/8500/8550/8560 Color Printer Service Manual 9-15
  • Xerox 8500DN | Service Manual - Page 338
    Upgrade Kit Hard Drive Upgrade with Japanese Fonts Part Number 117E29520 117E29500 117E29510 117E29490 117E35050 117E29460 117E35030 117E35040 Part Number 097S03172 (8400) 121K44410 (8500/8550/8560) 097S03173 (8400) 121K44420 (8500/8550/8560) Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 339
    Solid Ink Cyan (3 sticks) Part Number 108R00602 (8400) 108R00675 (8500/8550/8560) 108R00603 (8400) 108R00676 (8500/8550/8560) 108R00604 (8400) 108R00668 (8500/8550) 108R00726 (8560) 108R00605 (8400) 108R00669 (8500/8550) 108R00723 (8560) Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 340
    N/A N/A 063347500 8560 650K27770 N/A N/A Phaser Color Printing Media Description Phaser Premium Color Printing Paper, 24 lb. Letter, 500 Sheets Phaser Premium Color Printing Paper, 24 lb. A4, 500 Sheets Part Number 016136800 016136900 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 341
    Sheets 103R01019 Phaser Weatherproof Paper, Letter, 150 Sheets 103R01020 Phaser Weatherproof Paper, A4,150 Sheets 103R01021 Supplies Startup Kit, Standard Size Media 097S03180 Supplies Startup Kit, Metric Size Media 097S03181 Phaser 8400/8500/8550/8560 Color Printer Service Manual 9-19
  • Xerox 8500DN | Service Manual - Page 342
    Parts Lists 9-20 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 343
    Wiring Diagrams In this chapter... ■ Main Wiring Diagram ■ Right-Side Wiring Diagram ■ Left-Side Wiring Diagram ■ Inside Front Wiring Diagram ■ Inside Top Wiring Diagram ■ Inside Top - Printhead Wiring Diagram 10 Chapter
  • Xerox 8500DN | Service Manual - Page 344
    Paper height opto Pick sense opto 8 3 J400 Main ECB 3 11 J120 Preheater Lift Solenoid ((8500/8550) Drum temp thermistor 3 2 3 Paper maintenance clutch Media Tray 6 sense ECB J1 Width sense (3) switch Length sense (2) switch s8500-123 10-2 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 345
    perimeters are for the actual connectors. Some have extra n.c. pins added to prevent misplugging errors. I/O color coding NOTE: Thermal fuse for drum is located on Pre-heated ECB Black = input Magenta = output Red = temp s8500-124 Phaser 8400/8500/8550/8560 Color Printer Service Manual 10-3
  • Xerox 8500DN | Service Manual - Page 346
    .4x J600 Add Paper Tray J610 No Handfeed J860 Maintenance Kit Missing J840 Dead Power 37006.4x Drum Heater (Pre-heater) Drum AC is routed thru pre-heater prior to relay board and drum Ground Clip 5002.42 37014.4x Drum Fan s8500-125 10-4 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 347
    codes are displayed on the Control Panel. Routes to Top of Channel 13387.4x J4AC 37006.4x J800 Dead Power J400 37027.4x 37027.4x X-Motor Signal Cable Ribbon Cable (Routed in (Routed on Middle of Channel) Bottom of Channel) s8500-126 Phaser 8400/8500/8550/8560 Color Printer Service Manual 10
  • Xerox 8500DN | Service Manual - Page 348
    displayed on the Control Panel. 37023.4x Purge Valve 37022.4x Purge Motor J280 37032.4x Y-Motor J790 37062.4x Head VSS J390 37034.4x MP Motor 37021.4x MT Elevator 37013.4x Electric Fan Channel (Connected to Ground Strap) s8500-127 10-6 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 349
    are displayed on the Control Panel. 37034.3x MP Motor 37015.4x MP Fan (8400 Only) 370xx.4x Preheater Lift Solenoid (8500/8550 Only) 37017.4x Deskew Clutch (8400 Only) Ground Clip 37018.4x Pick Clutch 37019.4x Pick Solenoid s8500-128 Phaser 8400/8500/8550/8560 Color Printer Service Manual 10
  • Xerox 8500DN | Service Manual - Page 350
    you should look at for the PEST codes. The PEST codes are displayed on the Control Panel. 37036.4x Process Motor 37008.4x Preheat Power (AC Connector) Paper Jam Load Paper (Open Front Cover) J860 13131.41 Sensor Flag s8500-129 10-8 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 351
    Panel. 8400 37010.4x Ink 1 Heater J2AC 37002.4x JSL Heater 8500/8550 37010.4x Ink 1 Heater J2AC 37002.4x JSL Heater J1AC 37009.4x (Ink Load Power) J130 34062.4x (Data Cable) J1AC 37009.4x (Ink Load Power) J130 34062.4x (Data Cable) s8500-130 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 352
    The arrows indicate which connectors you should look at for the PEST codes. The PEST codes are displayed on the Control Panel. Cable Restraint Out of Ink J180 32064.4x Heater Cable (8400 Only) J140 37063.4x Head VPP s8500-131 10-10 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 353
    Reference Contents... ■ Menu Map (8400) ■ Menu Map (8500/8550/8560) ■ Paper Weight Equivalence Table ■ On-site Printhead Troubleshooting Checklist (8400) ■ On-site Printhead Troubleshooting Checklist (8500/8550/8560) A Appendix
  • Xerox 8500DN | Service Manual - Page 354
    Supplies Info Walk-UpTM Features* Secure Print Jobs***** Proof Print Jobs***** Saved Print Jobs***** Walk-Up PrintingTM Select for Installation Printer Setup Configuration Page Connection Setup Model Printer Name Print Server* IP Address* Serial # Activation Date Maintenance Kit Life Total Print
  • Xerox 8500DN | Service Manual - Page 355
    Front Panel Reset Front Panel Setup Font Number Pitch Point Size Symbol Set Orientation Form Length Line Termination Draft Mode Reset PCL Setup Troubleshooting Help Guide Paper Jams Print Quality Problems Network Log Pages* Service Tools Shutdown Power Saver (Recommended) Restart Printer Power
  • Xerox 8500DN | Service Manual - Page 356
    Windows printer drivers. Information Menu Map Printer Identification Information Pages Sample Pages Supplies Info Billing Meters Paper Tray Setup Serial # Total Impressions Color Impressions Black Impressions Model Printer Name IP Address* Serial # Activation Date Maintenance Kit Life Total Print
  • Xerox 8500DN | Service Manual - Page 357
    IS Language Control Panel Brightness Control Panel Contrast Accessible Control Panel Reset Control Panel Setup Paper Tips Page Troubleshoot Jams Paper Path Test Basic Advanced Jet Substitution Mode Removes light stripes on prints. Phaser 8400/8500/8550/8560 Color Printer Service Manual A-5
  • Xerox 8500DN | Service Manual - Page 358
    A7 Lee Envelope 133.35 184.2 #6 3/4 Envelope 92.075 165.1 A6 105 148 #5-1/2 Baronial 111.125 146 3 x 5 Card 6 x 9 Envelope 76.2 152.4 127 228.6 Custom 76.2 - 127 215.9 355.6 Side Margins (mm) Top/ Bottom 51.2 - 102 190.9 330.6 A-6 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 359
    Paper Weight Equivalence Table Reference US Postcard Thicknes s (mm) US Bond Weight (lb.) US Text Book Weight (lb.) 16 41 17 43 20 Metric Weight (g/m2) 60 64 75 80 90 100 105 110 120 135 148 150 163 170 176 190 199 203 216 244 Phaser 8400/8500/8550/8560 Color Printer Service Manual A-7
  • Xerox 8500DN | Service Manual - Page 360
    to any of the above, be sure to document the use of non-Xerox ink in the Comments section of this document. Xerox U.S. personnel and Service Delivery Partners please record non-Xerox ink use in the FIST system as well as in this document. A-8 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 361
    3 Step 4 Step 5 Print the Service Usage Profile. It is located in the front panel menu Troubleshooting - Service Tools. Does the printer display an error code indicating a problem with the printhead? Visually inspect the ink reservoirs. Do they all contain ink? No ink in a reservoir, accompanied
  • Xerox 8500DN | Service Manual - Page 362
    . 10c. Remove the waste tray and examine how much ink was purged. A single purge should resemble the illustration. A-10 Is the purge mass noticeably less than what is pictured? If YES, inspect the purge hoses for kinks, splits or tears. P3 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 363
    missing jet. x Perform the JetFix technique by downloading the appropriate snippet (such as 8400_jetfix_c.ps for a missing cyan jet) to the printer. The snippets are available on the Customer Support Resources website in the Phaser 8400 web pages. Refer to Service Bulletin 640. x If the jet is still
  • Xerox 8500DN | Service Manual - Page 364
    packaging observed? YES NO x Was generic ink present in the ink loader? YES NO IMPORTANT - Note the brand and lot code of the generic ink, if available Xerox Phaser 8400/WorkCentre C2424 Printhead Checklist 075-0882-02 Page 5 A-12 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 365
    any of the above, be sure to document the use of non-Xerox ink in the Comments section of this document. Xerox U.S. personnel and Service Delivery Partners please record non-Xerox ink use in the FIST system as well as in this document. Phaser 8400/8500/8550/8560 Color Printer Service Manual A-13
  • Xerox 8500DN | Service Manual - Page 366
    Print the Service Usage Profile. It is located in the front panel menu Troubleshooting - Service Tools. Does the printer display an error code indicating a problem with the printhead? YES NO Circle one If Line 631 Printhead ID lists . A-14 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 367
    . 9c. Remove the waste tray and examine how much ink was purged. A single purge should resemble the illustration. Is the purge mass noticeably less than what is pictured? If YES, inspect the purge hoses for pinches, splits, or tears. Phaser 8400/8500/8550/8560 Color Printer Service Manual A-15
  • Xerox 8500DN | Service Manual - Page 368
    Troubleshooting Checklist (filled out) x Inventory control "Green Tag" (filled out) x Sample prints that clearly show the observed print quality defect (not applicable for printheads replace because of an error code) Service Print 1 A-16 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 369
    , 4-26 paper trail edge times, 4-24 tray 1 pick shaft, 4-18 tray 2, tray 3, and tray 4 pick shaft, 4-20 wiper shaft, 4-16 check shafts menu, 4-13 deskew shaft, 4-13 cleaning ink smears, 7-3 light stripes or missing colors, 7-2 media jams, 7-3 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 370
    NVRAM replacement, 8-50 overview, 2-3 parts list, 9-13 POST errors, 3-4 replacement, 8-46 theory of operation, 2-19 electronics subsystem, 2-3 eliminate light stripes, 2-33, 5-2 eliminate light stripes, service menu, 4-2 energy guidelines, 4-3 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 371
    menu, service diagnostics, 4-9 functional specification, 1-12 fuzzy text, 5-17 H hard drive, 1-8 parts list (all series), 9-13 POST error, 3-6 replacement note, 8-46 replacement procedure, 8-52 support, 2-19 upgrade kit parts, 9-16 head tilt gear, homing, 6-5 heater harness, 8-13 heaters, ink
  • Xerox 8500DN | Service Manual - Page 372
    overview, 2-3 printhead restraints, disassembly, 8-10 print-quality defects, 5-2 process control faults, 3-10 process drive, 2-18 assembly train, 6-4 definition, 2-2 error faults, 3-15 homing, 6-8 parts list, 9-11 relation to drum, 2-13 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 373
    , printer, 1-10 status indicator LED, 1-5 streaks, 5-11 supplies, Xerox, 9-16 T test prints, 5-34 tilt cam, 2-10, 2-11 tilt gear, 2-12 transfix roller, 2-16, 2-27 transfix speeds, 2-31 transfix system, 2-3, 2-16 transfixing, 2-27 troubleshooting, jam codes, 3-49 U uneven color, 5-9 W waste ink
  • Xerox 8500DN | Service Manual - Page 374
    Index Notes Reference Description I-6 Phaser 8400/8500/8550/8560 Color Printer Service Manual
  • Xerox 8500DN | Service Manual - Page 375
  • Xerox 8500DN | Service Manual - Page 376
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Service Manual
Phaser
®
8400/8500/8550/8560
701P27910
Color Printer