HP LaserJet Enterprise 500 Maintenance Manual
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- HP LaserJet Enterprise 500 | Maintenance Manual - Page 1
/LQH-HWΠ3ULQWHUV Maintenance Manual - HP LaserJet Enterprise 500 | Maintenance Manual - Page 2
in any other material in any form or by any means, whether manual, graphic, electronic, mechanical, or otherwise, without the prior written consent of Hewlett-Packard Company. All rights reserved. TRADEMARKS AND SERVICE MARKS AMD is registered trademark of Advanced Micro Devices, Inc. ANSI is - HP LaserJet Enterprise 500 | Maintenance Manual - Page 3
Cage Fan Assembly 30 4 Troubleshooting 31 Introduction 31 Troubleshooting Aids 31 Start Here 32 Troubleshooting Display Messages 33 List of Messages 33 Troubleshooting Other Symptoms 64 General Symptom List 65 Communications Failures 83 Diagnostic Printer Tests 84 Selecting and Running - HP LaserJet Enterprise 500 | Maintenance Manual - Page 4
100 Returning the Printer to Normal Operation 101 Belt, Paper Feed Timing, Adjustment 102 Belt, Platen Open, Adjustment 104 Paper Drive Motor Pulley Alignment 106 Paper Scale Alignment 108 Platen Gap Adjustment 110 Platen Open Motor Pulley Alignment 112 Ribbon Guide Alignment 114 Splined - HP LaserJet Enterprise 500 | Maintenance Manual - Page 5
169 Ribbon Drive Motor 171 Ribbon Guide Assembly (L/R 172 Ribbon Hub 173 Shaft, Splined 174 Shaft, Support 176 Shuttle Frame Assembly 177 Spring System 220 Ribbon Transport System 221 Logical Control of the Printer 222 Control Panel 223 CMX Controller Board 224 Data Controller 226 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 6
and Regulatory Information 269 Ribbon Specifications 269 Printer Dimensions 270 Environmental Characteristics 271 Electrical from One Diskette 285 Loading Flash Memory from Multiple Diskettes 288 E Host Configurations and Drivers 293 HP3000 / MPE-V 293 HP3000 / MPE-XL / MPE / iX 294 HP9000 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 7
Table of Contents Removing the Power Stacker 312 Installing the Power Stacker 317 Replacing the Constant Force Spring 328 Replacing the Timing Belts 331 Illustrated Parts Breakdown 335 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 8
Table of Contents - HP LaserJet Enterprise 500 | Maintenance Manual - Page 9
LineJet™ series consists of five fast, reliable line matrix printers. The name of the printer indicates its speed rating and the type of printer housing, as shown below. Table 1. LineJet Printers Model Name Model Number Print Speed1 (LPM) Housing Hammer Bank LineJet 500P C3201D 500 Pedestal - HP LaserJet Enterprise 500 | Maintenance Manual - Page 10
of the LineJet printer, remember the following principles whenever you service it. • Do not adjust the platen gap unless: 1) the original shuttle frame assembly or platen has been replaced with a new or rebuilt unit, or 2) you are instructed to do so in a troubleshooting procedure. • The hammer - HP LaserJet Enterprise 500 | Maintenance Manual - Page 11
Notes and Notices About This Manual This is a field service maintenance manual. It is designed so that you can quickly locate maintenance information. Taking a systematic approach to maintenance tasks will help you restore the printer to operation as quickly as possible: 1. Locate the procedure or - HP LaserJet Enterprise 500 | Maintenance Manual - Page 12
Chapter 1 About This Manual Printing Conventions in This Manual Control panel keys and indicators are highlighted in bold print. Example: Press the CLEAR key, then press the ON LINE key. LCD (Liquid Crystal Display) - HP LaserJet Enterprise 500 | Maintenance Manual - Page 13
is covered in the following manuals: • LineJet Printers: User's Guide (Part Number 171252-001PX) Explains how to configure the printer and provides simple troubleshooting guidelines. • LineJet Printers: Cabinet and Pedestal Model Installation Instructions (Part Number 171253-001PX) Explains - HP LaserJet Enterprise 500 | Maintenance Manual - Page 14
notices apply at all times when you are working on the printer: Warning To prevent serious personal injury from electrical shock when to equipment. If you must apply power during maintenance, you will be instructed to do so in the maintenance procedure. Warning To prevent injury from electric - HP LaserJet Enterprise 500 | Maintenance Manual - Page 15
Related Documents Hinweise zur Sicherheit VWoarrsnicinhgt Um erstliche körperliche Verletzungen durch Stromschlag beim Anschließen oder Trennen des Signalton-Kabels zu vermeiden, muß der Drucker auf jeden Fall ausgeschaltet und der Netzstecker herausgezogen werden. VWoarrsnicinhgt Bevor Sie anf - HP LaserJet Enterprise 500 | Maintenance Manual - Page 16
menu. ä ; (PREV) Displays the previous option in a configuration menu. ä CLEAR Clears the printer after a fault is corrected and returns the ä printer to the offline state. SHIFT + L.P.I ADJ Selects new line spacing. ä SHIFT + CLEAR Resets PCL-II emulation. ä SHIFT + PAGE L ADJ Selects - HP LaserJet Enterprise 500 | Maintenance Manual - Page 17
Related Documents Raise printer cover to use these keys. CLEAR PREV UP SHIFT NEXT SET TOF DOWN L.P.I. ADJ PAGE L ADJ ENTER (Off) (On) Power Switch LCD Status Indicator ON LINE FF LF VIEW Figure 1. Electrical Controls, Cabinet Models 17 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 18
menu. ä Displays the previous option in a configuration menu. ä Clears the printer after a fault is corrected and returns the ä printer to the offline state. Selects new line spacing. ä Resets PCL-II emulation. ä Selects new form length in inches, which is then selected ä with Page - HP LaserJet Enterprise 500 | Maintenance Manual - Page 19
Related Documents (Off) (On) Power Switch Prev Next Up Down Clear Shift Set TOF L.P.I. Adj ENTER Page L Adj LCD Prev Next Up Down Clear Shift Set TOF L.P.I. Adj Enter Page L Adj On Line LED On Line FF LF View On Line On Line FF LF View Figure 2. Electrical Controls, Pedestal - HP LaserJet Enterprise 500 | Maintenance Manual - Page 20
unload paper. Paper Supports Help prevent paper jams by supporting inner sections of paper. They are positioned manually by sliding them knob to move paper vertically. Works when forms thickness lever is open. Instructions showing how to load the ribbon correctly. One diagram is cast in relief - HP LaserJet Enterprise 500 | Maintenance Manual - Page 21
Related Documents 3 2 1 4 5 1 6 9 7 8 Legend: 1) Tractor Lock 2) Horizontal Adjustment Knob 3) Left Tractor 4) Paper Supports 5) Right Tractor 6) Vertical Position Knob 7) Forms Thickness Lever 8) Forms Thickness Pointer 9) Ribbon Loading Diagrams Figure 3. Mechanical Controls and Indicators, - HP LaserJet Enterprise 500 | Maintenance Manual - Page 22
Supplies The tools and equipment required for field level maintenance of the printer are listed below. Alcohol, Anhydrous Allen Wrench, 1/16 inch Allen Wrench M-3, Master Lubricants Co.) (P/N101805-001PX) Nut Driver, 1/4 inch Nut Driver, 5/16 inch Nut Driver or Open End Wrench, 7/32 inch Open End - HP LaserJet Enterprise 500 | Maintenance Manual - Page 23
2 Installation Installation To install and configure the printer, refer to the following documents: • LineJet Printers: Cabinet and Pedestal Model Installation Instructions (Part Number 171253-001PX) • LineJet Printers: User's Guide (Part Number 171252-001PX) 23 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 24
Chapter 2 Installation 24 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 25
operating conditions vary widely, the user must determine how often to clean the printer. Since there is no guarantee that the user will clean the printer regularly, you should clean the printer whenever you are called to service it. Warning Always disconnect the AC power cord before cleaning the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 26
a soft cloth. Caution To avoid corrosion damage, use only alcohol when cleaning printer mechanical elements, and make sure the cleaning solution contains no water. 9. Using a cloth dampened (not wet) with alcohol, clean the ribbon guides. 10. Vacuum up dust and residue from the lower cabinet. 11 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 27
3 2 1 NOTE: Cabinet model shown. Procedure is the same for pedestal model. 4 5 6 Legend: 1) Base Casting 2) Shuttle Cover Assembly 3) Splined Shaft 4) Tractors 5) Forms Thickness Lever 6) Ribbon Guide (2) Figure 4. Cleaning Inside the Cabinet or Top Cover 27 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 28
Chapter 3 Cleaning the Shuttle Frame Assembly Cleaning the Shuttle Frame Assembly 1. Remove the shuttle cover assembly (page 141). 2. Remove the shuttle frame assembly (page 177). 3. Remove the paper ironer (page 160). Warning Over time, the upper edge of the paper ironer can become sharp. To - HP LaserJet Enterprise 500 | Maintenance Manual - Page 29
NOTE: LineJet 500Q hammer bank is shown, but the procedure is the same for all hammer banks. 1 Legend: 1) Hammer Tip Figure 5. Cleaning the Hammer Tips Caution The hammer bank contains a strong magnet. To prevent damage to the hammer tips, do not let the hammer bank cover assembly snap into place - HP LaserJet Enterprise 500 | Maintenance Manual - Page 30
lint. (See Figure 6.) 3. Cabinet Models: Install the paper path (page 161) Pedestal Models: Install the top cover assembly (page 142). 4. Return the printer to normal operation (page 101). NOTE: Cabinet model shown. Procedure is the same for pedestal model. 1 Legend: 1) Card Cage Fan Assembly Figure - HP LaserJet Enterprise 500 | Maintenance Manual - Page 31
fault messages and symptoms, and provides procedures for troubleshooting printer malfunctions. Always have the User's Guide handy when you troubleshoot because this manual does not cover printer operation or configuration. You must operate the printer to check its performance, and sometimes you may - HP LaserJet Enterprise 500 | Maintenance Manual - Page 32
of an error message? YES NO Go to Troubleshooting Display Messages, page 33. Power on the printer and observe the control panel for the following sequence Printer does not initialize, page 67. Did the fans come on after 10 seconds? YES NO Make a configuration printout. (Ref.: User's Guide.) - HP LaserJet Enterprise 500 | Maintenance Manual - Page 33
of Messages Troubleshooting Display Messages Warning Always disconnect the AC power cord from the printer before doing a maintenance procedure. Failure to remove power could result in injury to you or damage to equipment. If you must apply power during maintenance, you will be instructed to do - HP LaserJet Enterprise 500 | Maintenance Manual - Page 34
4 Troubleshooting Display Messages Message 8.5V POWER FAIL * 15V CTL FAIL* Table 2. Message List Explanation 8.5 Volt Power Failed. Internal power failure. Controller Voltage Failure. Solution 1. Cycle power. If the message appears, replace the power supply board. 2. Power on the printer. If - HP LaserJet Enterprise 500 | Maintenance Manual - Page 35
the emulation software again (page 129). 2. Cycle power. Run the print job again. If the message appears, replace the flash memory. 3. Power on the printer. Run the print job again. If the message appears, replace the CMX controller board. Record the message and return it with defective CMX board - HP LaserJet Enterprise 500 | Maintenance Manual - Page 36
Chapter 4 Troubleshooting Display Messages Message A TO D OVERRUN* BUFFER OVERRUN CLEAR PAPER board. Record the message and return it with defective CMX board. 1. Verify that the printer matches the host serial interface configuration settings for Data Protocol, Baud Rate, Data Bits, Stop - HP LaserJet Enterprise 500 | Maintenance Manual - Page 37
List Explanation Status message: emulation software successfully loaded into printer RAM and the checksum matched. The old program is now and check that the platen pulley setscrew does not hit the left ribbon guide. 9. Inspect the tractors and tractor door springs for damage or excessive wear - HP LaserJet Enterprise 500 | Maintenance Manual - Page 38
Troubleshooting Display Messages Message CLOSE PLATEN Table 2. Message List Explanation The forms thickness lever is open. Solution 1. Load paper. Close the forms thickness lever. 2. Power off the printer setscrew does not hit the left ribbon guide. 6. Disconnect connector P106 from the CMX - HP LaserJet Enterprise 500 | Maintenance Manual - Page 39
to 100% and the message clears from the LCD. This message is normal for extremely dense print jobs, such as "All Black" plot. If the printer often prints at half speed, it may be operating in a severe environment. A severe environment is one with an ambient temperature at or above 40° Celsius - HP LaserJet Enterprise 500 | Maintenance Manual - Page 40
Controller Voltage Failure. 15 V failure on the CMX controller board. Status message: the printer passed its memory and hardware initialization tests. Driver Circuit Bad: the hammer coil count test failed. The printer cannot find the data controller program or the validation checksum is corrupt. The - HP LaserJet Enterprise 500 | Maintenance Manual - Page 41
the emulation. If the message appears, replace the CMX controller board. Record the message and return it with defective CMX board. 1. Power off the printer. Remove all flash memory and DRAM SIMMs. Inspect the SIMM sockets on the CMX controller board. If any socket pins are bent or damaged, replace - HP LaserJet Enterprise 500 | Maintenance Manual - Page 42
Troubleshooting Display Messages Table 2. Message List Message Explanation Solution ERROR: PROGRAM NEEDS MORE FLASH ERROR: PROGRAM NOT COMPATIBLE The printer requires more flash memory in order to run the downloaded program. The printer DRAM. If message occurs with new memory, replace the CMX - HP LaserJet Enterprise 500 | Maintenance Manual - Page 43
, press CLEAR. 2. Check that the exhaust fan is connected to exhaust fan cable connector J307. Connect the fan cable connector. 3. Power off the printer. Remove the paper path. Disconnect connector P107 from the CMX controller board. Test connector P107/EHF for shorts or opens. (See the Main Wire - HP LaserJet Enterprise 500 | Maintenance Manual - Page 44
. Record the message and return it with defective CMX board. 4. Power on the printer. Run the print job again. If the message still appears, there is an application software error. Use your local support procedure to request assistance. The printed output may contain random ! (exclamation point - HP LaserJet Enterprise 500 | Maintenance Manual - Page 45
. Electrical malfunction of one or more hammer coils. 1. Cycle power. If the message appears, replace the shuttle frame assembly. 2. Power on the printer. Run a print test. If the message appears, replace the CMX controller board. Record the message and return it with defective CMX board. Hammer - HP LaserJet Enterprise 500 | Maintenance Manual - Page 46
Troubleshooting If the message does not clear, go to step 2. 2. Power off the printer. Remove the paper path or pedestal top cover. Disconnect connector P107 from the Access. Firmware error on the CMX controller board. Illegal Instruction Accessed. Firmware error on the CMX controller board. 1. - HP LaserJet Enterprise 500 | Maintenance Manual - Page 47
by a hardware problem. Lower Driver Short. Circuit(s) on the hammer bank or in the hammer bank power cable are shorted to ground. 1. Cycle power. If this message occurred once and never again, you can ignore it. If the message reappears or appears consistantly check the grounding of the printer. If - HP LaserJet Enterprise 500 | Maintenance Manual - Page 48
off the printer. Remove the paper path or pedestal top cover. Remove the barrier shield (cabinet model) or the barrier shield and paper guide (pedestal loaded. No action required. The printer has deleted the previous program from flash memory and is loading the new program into flash memory. No - HP LaserJet Enterprise 500 | Maintenance Manual - Page 49
job again. If the message appears, download the emulation software again (page 129). 2. Run the print job again. If the message appears, power off the printer. Remove the paper path or pedestal top cover. Make sure connectors P106 and P107 are fully seated on the CMX controller board. Make sure the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 50
Chapter 4 Troubleshooting Display Messages Message PAP FIFO UNDRFL* PAP ILLGL ST* PAP download the emulation software again. 2. Run the print job again. If the message appears, power off the printer. Remove the paper path or pedestal top cover. Make sure connectors P106 and P107 are fully seated on - HP LaserJet Enterprise 500 | Maintenance Manual - Page 51
and return it with defective CMX board. Paper Not Scheduled. The paper feed process is not scheduling on the CMX controller board, and the printer cannot feed paper. 1. Cycle power. Run the print job again. If the message appears, download the emulation software again. 2. Cycle power. Run the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 52
Chapter 4 Troubleshooting Display Messages Message PAP UNEXP INT* PARAMETER ERROR PARITY ERROR appears, check the host data for invalid characters. 3. Ask the system operator to verify that the printer's Device ID is set to the correct emulation with respect to the host configuration. 4. Run the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 53
List Explanation Platen Invalid Parameter. Firmware error on the CMX controller board. Platen Invalid State. Firmware error on the CMX controller board. Status message: the printer finished loading the program into flash memory and is automatically resetting itself. This is a status message. The - HP LaserJet Enterprise 500 | Maintenance Manual - Page 54
Chapter 4 Troubleshooting Display Messages Message POWER SUPPLY HOT Table 2. Message List Explanation Solution The printer has sensor POWER SUPPLY HOT message is sent to the LCD and printing stops, allowing printer components to cool down. Pressing the CLEAR key resumes the print task. Check - HP LaserJet Enterprise 500 | Maintenance Manual - Page 55
4. Install paper path or pedestal top cover. Load paper. Power on the printer. Run the "All Black" print test for 1/4 page. If the message board. Record the message and return it with defective CMX board. Protected Instruction. Firmware error on the CMX controller board. 1. Cycle power. Run - HP LaserJet Enterprise 500 | Maintenance Manual - Page 56
Troubleshooting both ribbon drive motors. 2. Power on the printer. Using a screwdriver, short across the ribbon guide screws to reverse ribbon hub motion. Check for the code of the firmware on the CMX controller board. Install a new ribbon and set ribbon life to 100%. 1. Remove the paper path or - HP LaserJet Enterprise 500 | Maintenance Manual - Page 57
List of Messages Message SENDING PROGRAM TO EC PROCESSOR SHUTL INV CMD* SHUTL INV PARM* Table 2. Message List Explanation Status message: the printer is loading the engine controller program into the engine controller. Shuttle Invalid Command. Firmware error on the CMX controller board. Shuttle - HP LaserJet Enterprise 500 | Maintenance Manual - Page 58
Chapter 4 Troubleshooting Display Messages Message SHUTTLE JAM Table 2. Message List Explanation a deformed cover assembly. 4. Run a print test. If the message appears, power off the printer. 5. Remove the shuttle cover and paper path or the pedestal top cover. Inspect the shuttle mechanism - HP LaserJet Enterprise 500 | Maintenance Manual - Page 59
the printer. If the message appears, download the emulation software again (page 129). 3. Cycle power. Run the print job again. If the message appears, replace the CMX controller board. If the message is gone, there is an application software error. Request assistance from your local support group - HP LaserJet Enterprise 500 | Maintenance Manual - Page 60
OK, go to the next step. 5. Disable the power stacker unit under the Printer Control menu. (Refer to the Setup Guide.) If the message occurs, replace the CMX controller board. 6. Power off the printer. Remove the paper path. Disconnect stacker cables from the CMX controller board, stacker assembly - HP LaserJet Enterprise 500 | Maintenance Manual - Page 61
fails continuity test. Paper is bunching above the elevator or the paper motion detector is not working properly. 1. Remove the paper jam. 2. Power off the printer. Check that the wheel of the stacker paper motion detector rests against the rear brace of the paper throat. Also make sure the wheel - HP LaserJet Enterprise 500 | Maintenance Manual - Page 62
4 Troubleshooting Display Firmware error on the CMX controller board. Upper Driver Short. Hammer driver circuits on the CMX controller board are shorted to and the hammer bank power cable assemblies. 2. Power on the printer. If the message appears, replace the CMX controller board. Record the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 63
List of Messages Message WAITING FOR ETHERNET ADAPTER Table 2. Message List Explanation Solution This status message appears when the printer is first powered on if the optional PrintNet Ethernet interface is installed. An Ethernet adapter must be detected early in the power up sequence so - HP LaserJet Enterprise 500 | Maintenance Manual - Page 64
to describe the problem. 2. Verify the fault by running a diagnostic printer test or by replicating conditions reported by the user. 3. Look for a match in the General Symptom List below. If you find a match, go to the troubleshooting procedure and follow the numbered instructions. 4. If you cannot - HP LaserJet Enterprise 500 | Maintenance Manual - Page 65
List General Symptom List Table 3 is a list of possible printer problems that are not indicated by messages on the LCD. Troubleshooting procedures are included for each symptom. If you encounter a problem that is not listed in Table 3, troubleshoot using the Half-Split Method described on page 64 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 66
Troubleshooting Other Symptoms Table 3. General Symptom List Symptom CLEAR PAPER JAM message will not clear but paper moves Black squares on control panel Control panel blank Solution 1. Power off the printer with a new flash SIMM with the boot program installed. 4. Power on the printer. If black - HP LaserJet Enterprise 500 | Maintenance Manual - Page 67
breaker. If there is voltage, replace the power supply board. NOTE: Power-on initialization is explained on page 94. 1. Power off the printer. Remove the paper guide or pedestal top cover. Reseat all cable connectors on the CMX controller board, especially connectors P106 and P107. 2. Power up the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 68
Chapter 4 Troubleshooting Other Symptoms Table 3. General Symptom List Symptom Solution Power Stacker Printer does not detect presence of power stacker 1. Check that the power stacker is enabled under the Printer Control menu. (Refer to the Setup Guide.) If the power stacker enable/disable - HP LaserJet Enterprise 500 | Maintenance Manual - Page 69
switches, if necessary, by gently bending the contact arms. Replace switches that cannot be adjusted. 4. Power on the printer. Operate the power stacker. (Refer to the User's Guide.) While the stacker is operating, check that: a) all motors are operating b) the paddles are rotating c) the elevator - HP LaserJet Enterprise 500 | Maintenance Manual - Page 70
Chapter 4 Troubleshooting Other Symptoms Table 3. General Symptom List Symptom Stacker does not stacker rails if they are not vertical and parallel. 3. Power on the printer. Operate the power stacker. (Refer to the User's Guide.) While the stacker is operating, check that: a) all motors are - HP LaserJet Enterprise 500 | Maintenance Manual - Page 71
of the vertical rails. You will usually be referred to this procedure from other troubleshooting procedures. When you have completed this procedure, return to the procedure that sent you here. 1. Power off the printer. Open the rear cabinet door. Unload the power stacker. Move the elevator up and - HP LaserJet Enterprise 500 | Maintenance Manual - Page 72
and their cables. You will usually be referred to this procedure from other troubleshooting procedures. When you have completed this procedure, return to the procedure that sent you here. 1. a) Power off the printer. b) Open the rear cabinet door. c) Unfasten the cable clamp holding the stacker - HP LaserJet Enterprise 500 | Maintenance Manual - Page 73
new ribbon. If the ribbon does not track straight across the ribbon guides, adjust the ribbon guides. If the ribbon guides are loose, tighten them. If the ribbon guides are damaged, replace them. 5. Power off the printer 8. Power on the printer. If the problem still occurs, replace the hammer bank logic - HP LaserJet Enterprise 500 | Maintenance Manual - Page 74
columns line up), contact your support group or configuration help desk, because a configuration change may be necessary. If the pattern of H's did not print OK, go to the next step. 2. Check the hammer phasing. Adjust hammer phasing if necessary. 3. If the printer is a a 500 lpm model, check the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 75
replace both tractor assemblies. 6. Remove the paper guide assembly or pedestal top cover. Make sure connector P107/PAPR M is fully seated in connector J107 on the CMX controller board. 7. Load paper. Power on the printer. Run a print test. If the problem occurs, replace the paper feed motor. 8. Run - HP LaserJet Enterprise 500 | Maintenance Manual - Page 76
Troubleshooting Other Symptoms Symptom Downloads consistently fail Flash SIMM won't copy Table 3. General Symptom List Solution Printer Operation NOTE: Most download problems printer support the emulation software. 4. Power up the printer printer. Download the emulation (page printer printer. supported - HP LaserJet Enterprise 500 | Maintenance Manual - Page 77
or pedestal top cover. Make sure connector P107/PAPR M is fully seated in connector J107 on the CMX controller board. 8. Load paper. Power on the printer. Press PAPER ADVANCE and VIEW several times and check that paper moves in both directions. Replace the paper feed motor if paper does not move - HP LaserJet Enterprise 500 | Maintenance Manual - Page 78
Troubleshooting Other Symptoms Table 3. General Symptom List Symptom Printer does not print from the host Printer does not print self tests Solution 1. Check the host data cable connection at the rear of the printer. Attach the data cable to the printer that the host and printer have the same baud - HP LaserJet Enterprise 500 | Maintenance Manual - Page 79
the platen open belt. Replace the belt if it is damaged. 4. Check the platen gap. Adjust the platen gap. 5. Power off the printer. Remove the paper guide assembly. Disconnect connector P106 from the CMX controller board. Check the resistance of connector P106/PLAT M. (Refer to the Main Wire Harness - HP LaserJet Enterprise 500 | Maintenance Manual - Page 80
Chapter 4 Troubleshooting Other Symptoms Table 3. General Symptom List Symptom Solution Ribbon folding or feed problems Ribbon Power on the printer. Run a print test and observe ribbon movement across the left and right ribbon guides. Adjust the right and left ribbon guides. 5. Observe ribbon - HP LaserJet Enterprise 500 | Maintenance Manual - Page 81
cover assembly. 6. Check continuity of the shuttle motor drive cable assembly. Replace shuttle motor drive cable assembly if it fails continuity test. 7. Power up the printer. Run a Shuttle Slow or Shuttle Fast test. If the shuttle does not move, replace the shuttle frame assembly. 8. Power up the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 82
Chapter 4 Troubleshooting Other Symptoms Symptom Shuttle is noisy Table 3. General Symptom List Solution 1. Check the bolts you find any damage to the ribbon mask or hammer bank cover. 5. Power up the printer. Run a shuttle test. Replace the shuttle frame assembly if it is noisy or rattles. 82 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 83
2. Obtain a copy of the Device Host Configuration if possible. 3. Call your support group for assistance in problem analysis. If you cannot obtain support, or you have experience solving host-printer communications problems, the following additional information is provided. You can quickly check the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 84
next page. This test is useful for identifying paper motion or paper feed problems. • All H's - A pattern of all uppercase letter H's useful for Shuttle Only - Runs the shuttle mechanism with no ribbon movement. • Phase Printer - A hammer timing test that permits you to adjust the hammer phase value - HP LaserJet Enterprise 500 | Maintenance Manual - Page 85
any diagnostic test. Step Press LCD Result Notes 1. Make sure the printer is on. Raise the printer cover. 2. Load paper. 3. Set TOF. (Refer to the User's Guide.) 4. ON LINE OFFLINE CONFIG. CONTROL The printer must be offline to run a print test. 5. + ENTER SWITCH UNLOCKED Unlocks - HP LaserJet Enterprise 500 | Maintenance Manual - Page 86
Press OR ENTER ENTER LCD Result Printer Tests Shift Recycle* Printer Tests All E's Printer Tests All E's* Printer Tests All E's* Notes Cycle LOCKED ONLINE LinePrinter+ Locks the ENTER key and control panel. Places the printer in online mode. 20. Examine print quality. Characters should be fully - HP LaserJet Enterprise 500 | Maintenance Manual - Page 87
boot-up software contains a "Boot Diagnostics" menu that you can access by holding down two keys while powering on the printer. This menu is not intended for the end user, but provides useful information for manufacturing and maintenance personnel. The boot diagnostics menu is a multi-level - HP LaserJet Enterprise 500 | Maintenance Manual - Page 88
Chapter 4 Boot Diagnostics Menu BOOT DIAGNOSTICS PRESS ENTER ENTER BOOT DIAGNOSTICS < VERSION CHECK > NOTE: >= DOWN key - HP LaserJet Enterprise 500 | Maintenance Manual - Page 89
Tests A From previous page BOOT DIAGNOSTICS MISC UTILITIES > NOTE: >= DOWN key - HP LaserJet Enterprise 500 | Maintenance Manual - Page 90
8 below.) You can use hex dumps as an aid in troubleshooting data reception problems. In a hex dump every printable character is printed both as its hex equivalent. If the printer is using a parallel interface, the letter "p" before a hex code indicates an active Paper Instruction (PI) line, and a - HP LaserJet Enterprise 500 | Maintenance Manual - Page 91
is active. 9. + 10. ON LINE ENTER SWITCH LOCKED ONLINE LinePrinter+ Locks the ENTER key and control panel. Places the printer in online mode. 11. Send a file from the host computer. The printer outputs a hex dump. Refer to the ASCII chart on page 92. 12. When the hex dump is complete, take the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 92
Chapter 4 ASCII Character Set ASCII Character Set KEY B7 B6 BITS B5 B4 B3 B2 B1 10 1 1 00 1 ESC 33 OCTAL equivalent 27 DECIMAL equivalent 1B HEX equivalent ASCII Character Name B7 B6 B5 BITS B4 B3 B2 B1 ROW 0 00 COLUMN 0 0 01 0 10 1 2 0 11 1 00 3 4 1 01 1 10 5 6 1 11 7 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 93
and initialization tests are bypassed and memory is simply refreshed with the power-up printer configuration. The printer must be offline to do a soft reset: 1. Press the ON LINE key to put the printer in the offline state. 2. Press the ; (PREV) + < (NEXT) keys simultaneously. The LCD will display - HP LaserJet Enterprise 500 | Maintenance Manual - Page 94
as a reference baseline to help you isolate problems that occur before the printer completes its boot and initialization routines. The power on to indicate that the processor received a valid reset vector and the first instructions to the processor are correct. This LED is used to report all DC - HP LaserJet Enterprise 500 | Maintenance Manual - Page 95
Ethernet adapter must be detected early in the power up sequence so the printer can tell the adapter it has been detected and continue with its own and the vectors are changed to reflect the new address. • Detect Flash - The boot code supports many different kinds of flash memory, permitting any - HP LaserJet Enterprise 500 | Maintenance Manual - Page 96
power up. If so, flash memory is optimized at this time. If not, the printer continues boot routines. • Check EC Program - The EC calculates a checksum of the program stored in its flash memory. If there is problem with its program, the EC puts the message "nopg" in the ECDC communications register - HP LaserJet Enterprise 500 | Maintenance Manual - Page 97
in flash memory. If the PAL does not support the software, boot code displays "SECURITY CODE VIOLATION". • Check Required DRAM - Boot code checks whether the amount of DRAM required to run the DC program is larger than the amount of DRAM in the printer. If so, it displays the message "ERROR: PROGRAM - HP LaserJet Enterprise 500 | Maintenance Manual - Page 98
Initialized RAM Variables • Configure RAM (allocated based upon amount in the printer) • Jump to MTOS (Multi-Tasking Operating System) • Initialize the : Print Engine Driver Task CT Driver Task (sends 8344 code to the CT expansion board) Serial Driver Task Parallel Driver Task CT Emulation - HP LaserJet Enterprise 500 | Maintenance Manual - Page 99
adjustment. Usually, you will be referred to this chapter by a troubleshooting procedure, or as part of a removal/installation procedure. List of Adjustments Preparing the Printer for Maintenance page 100 Returning the Printer to Normal Operation page 101 Belt, Paper Feed Timing, Adjustment page - HP LaserJet Enterprise 500 | Maintenance Manual - Page 100
you make any adjustments: Warning Unplug the printer power cord from the printer or power outlet before you do any maintenance procedure. Failure to remove power could result in injury to you or damage to equipment. If you must apply power during maintenance, you will be instructed to do so in the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 101
List of Adjustments Returning the Printer to Normal Operation When you are finished servicing the printer, do the following steps: 1. Install the ribbon. 2. Load paper. 3. Connect the data (signal) cable to the printer interface. 4. Plug the AC power cord into the printer and the power source. 5. - HP LaserJet Enterprise 500 | Maintenance Manual - Page 102
3, 4 and 9.) Pedestal Models: Loosen the four screws securing the paper guide and barrier shield and remove both. (See page 194, items 3, 4, motor mount bolts (2). 6. Push the motor (3) toward the rear of the printer until there is 1/8 inch deflection of the belt midway between the pulleys, then - HP LaserJet Enterprise 500 | Maintenance Manual - Page 103
List of Adjustments Direction of Force 4 3 2 $ 2 $ 1 Legend: 1) Timing Belt Shield 2) Motor Mount Bolt (2) 3) Paper Feed Drive Motor 4) Splined Shaft Figure 9. Paper Feed Timing Belt Adjustment 103 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 104
lead to premature wear of the platen, damaged hammer tips, and poor print quality. 6. Push the platen open motor toward the rear of the printer until there is 1/8 inch belt deflection midway between the pulleys, then tighten the upper motor mount screw with a 5/16 inch nutdriver. Tighten the lower - HP LaserJet Enterprise 500 | Maintenance Manual - Page 105
List of Adjustments $ 2 $ Direction of Force 1 3 2 Legend: 1) Belt Cover 2) Motor Mount Screw (2) 3) Platen Open Motor Shaft Figure 10. Platen Open Belt Adjustment 105 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 106
Chapter 5 Paper Drive Motor Pulley Alignment Paper Drive Motor Pulley Alignment 1. Prepare the printer for maintenance (page 100). 2. Cabinet Models: go to step 3. Pedestal Models: Remove the top cover assembly (page 142). 3. Remove the timing belt cover (1) by squeezing - HP LaserJet Enterprise 500 | Maintenance Manual - Page 107
List of Adjustments 5 3 $ 2 $ 1 4 Legend: 1) Belt Shield 2) Cap Screw 3) Motor Pulley Collar 4) Motor Pulley 5) Splined Shaft Pulley Figure 11. Paper Drive Motor Pulley Alignment 107 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 108
cover. 2. Load paper and ribbon. 3. Connect the power cord to the AC power source. 4. Set the printer power switch to 1 (on). 5. Verify that the shuttle cover (1) is properly installed (page 141). 6. printout. 10. Tighten the 5/64 inch button-head hex screws (2). 11. Close the printer cover. 108 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 109
List of Adjustments 2 1 2 3 2 Legend: 1) Shuttle Cover 2) Screw, Button-Head, 5/64 inch hex (3) 3) Paper Scale Figure 12. Paper Scale Alignment 109 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 110
if the original equipment shuttle frame assembly or platen has been replaced by a new or refurbished unit or if you have been instructed to do so in a troubleshooting procedure. Caution 1. Prepare the printer for maintenance (page 100). 2. Remove the shuttle cover assembly (page 141). 3. Loosen - HP LaserJet Enterprise 500 | Maintenance Manual - Page 111
List of Adjustments $ 1 5 ORF 0D\ NOTE: Left side adjustment shown. Right side is the same. 3 4 2 $ Legend: 1) Forms Thickness Lever 2) Feeler Gauge 3) Hammer Bank Cover 4) Ribbon Mask 5) Set Screw, 3/32 inch hex (2) Figure 13. Platen Gap Adjustment 111 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 112
Chapter 5 Platen Open Motor Pulley Alignment Platen Open Motor Pulley Alignment 1. Prepare the printer for maintenance (page 100). 2. Cabinet Models: Go to step 3. Pedestal Models: Remove the top cover assembly (page 142). 3. Remove the platen open belt cover (1) by - HP LaserJet Enterprise 500 | Maintenance Manual - Page 113
List of Adjustments $ 2 $ 1 3 4 Legend: 1) Belt Cover 2) Set Screw 3) Platen Open Motor Pulley 4) Platen Shaft Pulley Figure 14. Platen Open Motor Pulley Alignment 113 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 114
the ribbon is not centered, loosen the retaining screws (4) just enough so that you can rotate the ribbon guide to new positions, but it remains in place once moved. 7. Rotate the ribbon guide as required to center the ribbon (2). 8. Observe how the ribbon (2) winds onto the ribbon spool of the side - HP LaserJet Enterprise 500 | Maintenance Manual - Page 115
List of Adjustments $ $ Left Ribbon Guide 2 Early Models 4 % % Right Ribbon Guide 1 3 2 Later Models 4 3 1 Legend: 1) Screw, Skid (2) 2) Ribbon 3) White Nylon Washer 4) Screw, Retaining (2) Figure 15. Ribbon Guide Alignment 115 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 116
Skew Adjustment If lines of print are not parallel with the perforations on the paper, perform the following adjustment. 1. Open the printer cover. 2. Loosen the screw (1) securing the adjusting link (2). 3. Adjust the link (2) by raising or lowering the horizontal adjustment knob (3) to obtain - HP LaserJet Enterprise 500 | Maintenance Manual - Page 117
message is triggered. This adjustment prevents printing on the platen when the printer runs out of paper. The measurement units are dot rows. You will this parameter is set correctly. Note Do this procedure only if a new paper detector switch assembly has been installed, the CMX controller board - HP LaserJet Enterprise 500 | Maintenance Manual - Page 118
Chapter 5 Paper Out Adjustment 4 in. Cut out here 4 in. Page Perforation Page Perforation Page Perforation Figure 17. Paper Preparation for Paper Out Adjustment Test 118 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 119
16. Press CLEAR to remove the fault condition. "OFFLINE / CONFIG. CONTROL" displays. 17. Press the ; key. "DIAGNOSTICS" displays. 18. Press >. "DIAGNOSTICS / Printer Tests" displays. 19. Press < until "Paper Out Dots" displays. 20. Press >. The top line of the display will show "Paper Out Dots" and - HP LaserJet Enterprise 500 | Maintenance Manual - Page 120
perforation, decrease the number of dots.) 23. Press ENTER to select the new number of dots as the active value. (The asterisk that appears tells you that it is now the active value.) 24. Press CLEAR to place the printer offline. "OFFLINE / CONFIG. CONTROL" displays. 25. Run the Paper Out Dots - HP LaserJet Enterprise 500 | Maintenance Manual - Page 121
this value and recheck the vertical alignment. When vertical alignment is acceptable, write the new phasing value on the shuttle. Phasing should be adjusted with the printer printing at full paper width. Note The printer must be printing the Phase pattern of "H's" when the Phasing Value is changed - HP LaserJet Enterprise 500 | Maintenance Manual - Page 122
. 17. Press = + >. "ENTER SWITCH LOCKED" briefly displays. 18. Close the printer cover. 19. Press the ON LINE key to place the printer on-line. If you changed the phasing value, power down the printer, remove the shuttle cover, and write the new phase value on the aluminum shuttle casting. 122 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 123
you were instructed to do so in a troubleshooting procedure. Do not do this procedure if you removed and reinstalled the original CMX board or shuttle frame assembly from a 500 lpm printer as part of other maintenance tasks. 1. Raise the printer cover. 2. Power on the printer. 3. If the printer is - HP LaserJet Enterprise 500 | Maintenance Manual - Page 124
Chapter 5 Set Shuttle Speed 124 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 125
removing and installing components that are replaceable at the field service level of maintenance. The replacement procedures refer you to Illustrated Parts Lists Drawings of all electrical and mechanical assemblies in the printer. On the page facing each illustration is a list of the illustrated - HP LaserJet Enterprise 500 | Maintenance Manual - Page 126
printer power cord from the printer or power outlet before doing any maintenance procedure. Failure to remove power could result in injury to you or damage to equipment. Only apply power during maintenance if you are instructed operational spare. Most electronic problems are corrected by replacing - HP LaserJet Enterprise 500 | Maintenance Manual - Page 127
166 Power Supply Board page 168 Resistors, Terminating page 169 Ribbon Drive Motor page 171 Ribbon Guide Assembly (L/R page 172 Ribbon Hub page 173 Shaft, Splined page 174 Shaft, Support page 176 Shuttle Frame Assembly page 177 Spring, Extension, Hammer Bank page 179 Switch Assembly, Paper - HP LaserJet Enterprise 500 | Maintenance Manual - Page 128
Replacement Procedures Belt, Paper Feed Timing Removal 1. Prepare the printer for maintenance (page 100). 2. Cabinet Models: Remove the 192, items 3, 4, and 9.) Pedestal Models: Loosen four screws and remove the paper guide and barrier shield. (See page 194, items 3, 4, and 5.) 4. Remove the timing - HP LaserJet Enterprise 500 | Maintenance Manual - Page 129
Platen Open Caution Belt, Platen Open Removal 1. Prepare the printer for maintenance (page 100). 2. Cabinet Models: Remove platen open motor (page 208, item 15). 5. Push the motor toward the front of the printer to loosen the platen open belt. 6. Loosen the 1/16 inch setscrew in the platen open - HP LaserJet Enterprise 500 | Maintenance Manual - Page 130
leads. (Cabinet Models: See page 210. Pedestal Models: See page 196.) 4. Press in on the spring clips and remove the circuit breaker from the printer. Installation 1. Press the circuit breaker into the cutout until the spring clips snap into place. (Cabinet models: See page 210. Pedestal models: See - HP LaserJet Enterprise 500 | Maintenance Manual - Page 131
. There is also a diagram of the P106 and P107 connector shells on the plastic heat shield over the power supply. Removal 1. Prepare the printer for maintenance (page 100). 2. Cabinet Models: Remove the paper path (page 161). Pedestal Models: Remove the top cover assembly (page 142). 3. Remove the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 132
1 MPU PLO EHF PAPR M CVO RRP HBF RRIB M 20 18 16 14 12 10 8 6 4 2 CCF = Card Cage Fan LRIB M = Left Ribbon Motor LRP = Left Ribbon Guide PLAT M = Platen Open Motor PMD = Paper Motion Detector (Switch) POD = Paper Out Detect (Switch) Connectors P106 and P107 have stiffening clips. See page 133. EHF - HP LaserJet Enterprise 500 | Maintenance Manual - Page 133
and P107 to help prevent accidental removal of wires when the connector shells are disconnected from the CMX board. Removal 1. Prepare the printer for maintenance (page 100). 2. Cabinet Models: Remove the paper path (page 161). Pedestal Models: Remove the top cover assembly (page 142). 3. Unsnap - HP LaserJet Enterprise 500 | Maintenance Manual - Page 134
Chapter 6 Section I: Replacement Procedures P106 P107 $ $ Stiffening Clip $ Connector Shell Figure 19. Connector Stiffening Clips 134 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 135
the screws. (See page 188, item 1.) 2. Connect RJ11 connector P310 to connector J310 on the control panel. 3. Lower the printer cover and center the control panel assembly in the cutout of the printer cover. 4. Open the printer cover and tighten the four control panel mounting screws. 5. Return the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 136
I: Replacement Procedures Control Panel Assembly, Pedestal Models Removal 1. Prepare the printer for maintenance (page 100). 2. Open the printer cover. 3. Loosen the four captive screws until the control panel is released from the printer top cover. (See page 190, item 2.) 4. Remove the two 5/16 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 137
wrist strap when you handle circuit boards. Caution 1. Make a configuration printout of all saved configurations. (Refer to the User's Guide.) 2. Prepare the printer for maintenance (page 100). 3. Cabinet Models: Remove the paper path (page 161). Pedestal Models: Remove the top cover assembly - HP LaserJet Enterprise 500 | Maintenance Manual - Page 138
flash memory from the old board onto the new board does not transfer all operating system software. 6. Load flash memory. (See Appendix D.) 7. 500 lpm models only: set shuttle speed if as step 1 of the removal procedure, reset and save the printer configuration(s). (Refer to the User's Guide.) 138 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 139
Hammer Bank / Ribbon Mask Note Cover Assembly, Hammer Bank / Ribbon Mask Removal 1. Prepare the printer for maintenance (page 100). 2. Remove the shuttle frame assembly (page 177). 3. Using a Torx T-10 driver, remove the six screws and three ribbon mask clamp plates securing the ribbon mask to the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 140
Chapter 6 Section I: Replacement Procedures Hammer Bank Cover Screw (12) Ribbon Mask Tightening Sequence 43 12 56 Ribbon Mask Clamp Plate (3) Screw (6) Hammer Bank Cover Tightening Sequence 9 5 1 3 7 11 10 6 2 4 8 12 Figure 20. Hammer Bank Cover Assembly / Ribbon Mask 140 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 141
the edges of the shuttle cover assembly, tilt the rear edge up and lift the shuttle cover assembly out of the printer. Installation 1. Place the shuttle cover assembly in the printer. Tilt the forward edge of the cover down slightly and work the cover into position. Make sure the holes in the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 142
not remove, the two #2 Phillips hold-down screws on the rear of the printer. (See page 190, item 5.) 3. Open the printer cover. 4. Loosen the four captive #1 Phillips screws until the control panel is released from the printer top cover. (See page 190, items 1 and 2.) Set the control panel assembly - HP LaserJet Enterprise 500 | Maintenance Manual - Page 143
must be installed with the large cylinder in the uppermost position. Two persons may be required to do this procedure. Prop or hold the printer cover securely while installing the dashpot. 1. Position the dashpot against the ball studs on the upper and lower brackets. (See Figure 30, page 188 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 144
kit. The functions of the LEDs and DIP switches on the Ethernet interface board are described on page 145. To convert an Ethernet-equipped printer to a parallel interface, remove the Ethernet board assembly and install the Centronics connector in the slot the Ethernet board occupied. The Centronics - HP LaserJet Enterprise 500 | Maintenance Manual - Page 145
10/100Base-T LEDs and DIP Switches 10/100Base-T LEDs and DIP Switches The 10/100Base-T Ethernet interface has two indicator lights and two DIP switches, as shown below. DIP Switches 1 2 STAT (System Status) NET (Data to Network) STAT (Status) Indicator in Run and Auto Reset Modes Run Mode is the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 146
Chapter 6 Section I: Replacement Procedures DIP Switches On the back of the 10/100Base-T interface inside the printer, there are two DIP switches labeled 1 and 2. The functions of the DIP switches are explained in Table 6. Table 6. 10/100Base-T DIP Switch Settings DIP Switch 1 2 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 147
Fan Assembly, Cabinet Exhaust Note This procedure applies only to cabinet models. Removal 1. Prepare the printer for maintenance (page 100). 2. Open the front and rear cabinet doors and the printer cover. 3. Remove the paper fence/paper tray assembly. (See page 186.) 4. Remove the two 1/4 inch - HP LaserJet Enterprise 500 | Maintenance Manual - Page 148
Chapter 6 Section I: Replacement Procedures Fan Assembly, Card Cage Removal 1. Prepare the printer for maintenance (page 100). 2. Cabinet Models: Remove the paper path (page 161). Pedestal Models: Remove the top cover assembly (page 142). 3. Disconnect the card cage - HP LaserJet Enterprise 500 | Maintenance Manual - Page 149
Fan Assembly, Hammer Bank Fan Assembly, Hammer Bank Removal 1. Prepare the printer for maintenance (page 100). 2. Remove the shuttle cover assembly (page 141). 3. Cabinet assembly (page 142). 5. Install the shuttle cover assembly (page 141). 6. Return the printer to normal operation (page 101). 149 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 150
Chapter 6 Section I: Replacement Procedures Caution Hammer Spring Assembly Removal 1. Prepare the printer for maintenance (page 100). 2. Remove the shuttle frame assembly (page 177). 3. and the hammer bank are free of ink, install the new hammer spring assembly, as shown in the next section. 150 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 151
Hammer Spring Assembly Hammer Spring Assembly 7 NOTE: LineJet 500Q hammer bank and hammer spring assemblies are shown here. Although hammer spring assemblies vary, removal and installation are the same for all models. Hammer Spring Assembly 1 Discard old screws. Figure 21. Hammer Spring Assembly, - HP LaserJet Enterprise 500 | Maintenance Manual - Page 152
hammer spring assembly by the mounting base only, remove the new assembly and mounting screws from the box. 3. Handling the hammer spring springs. 8. Run a Diagnostic Printer Test and check print quality (page 84). a. If print quality is acceptable, return the printer to normal operation (page 101). - HP LaserJet Enterprise 500 | Maintenance Manual - Page 153
bank and hammer spring assemblies are shown here. Although hammer spring assemblies vary, removal and installation are the same for all models. Use new screws from the kit and the Torx T-10 bit adapter to install them. New Hammer Spring Assembly Figure 22. Hammer Spring Assembly, Installation 153 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 154
Chapter 6 Section I: Replacement Procedures Magnetic Pickup (MPU) Assembly Removal 1. Prepare the printer for maintenance (page 100). 2. Remove the shuttle cover (page 141). 3. Disconnect the magnetic pickup (MPU) cable connector (page 202, item 5). 4. Loosen the 7/64 inch hex - HP LaserJet Enterprise 500 | Maintenance Manual - Page 155
PAL Caution Memory Modules and Security PAL Removal 1. Make a configuration printout of all saved configurations. (Refer to the User's Guide.) 2. Prepare the printer for maintenance (page 100). 3. Cabinet Models: Remove the paper path (page 161). Pedestal Models: Remove the top cover assembly - HP LaserJet Enterprise 500 | Maintenance Manual - Page 156
Models: Install the paper path (page 161). Pedestal Models: Install the top cover assembly (page 142). 4. Download the emulation (page 285). 5. Return the printer to normal operation (page 101). 6. Using the configuration printout(s) you made in step 1 of the removal procedure, reset and save the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 157
= Bank 0 (must always be filled) J15 = Bank 1 Reserved for upgrades NOTES: SIMM slots J11 and J16 must always be filled. The CMX board does not support EDO RAM. Standard Memory, All Models: One 4MB flash SIMM One 4MB DRAM SIMM Figure 23. Memory Modules and Security PAL 157 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 158
Replacement Procedures Note Paper Feed Motor Removal 1. Prepare the printer for maintenance (page 100). 2. Cabinet Models: Remove 4, and 9.) Pedestal Models: Loosen the four screws and remove the barrier shield and paper guide. (See page 194, items 3, 4, and 5.) 4. Remove the timing belt cover by - HP LaserJet Enterprise 500 | Maintenance Manual - Page 159
the 7/64 inch setscrew. 6. While pushing the motor toward the rear of the printer, tighten the two 5/ 16 inch mounting bolts so there is 1/8 inch of 192, items 3, 4, and 9.) Pedestal Models: Install the barrier shield and paper guide and tighten the four screws. (See page 194, items 3, 4, and 5.) 9. - HP LaserJet Enterprise 500 | Maintenance Manual - Page 160
open position. 4. Push the ends of the paper ironer toward the rear of the printer, disengage the tabs, then lift it up and out (page 206, item 3). ironer so the black tape is on the side that faces the rear of the printer, towards the paper detector switch assembly. (See page 206, item 3.) 2. Push - HP LaserJet Enterprise 500 | Maintenance Manual - Page 161
Path Note This procedure applies only to cabinet models. Paper Path Removal 1. Prepare the printer for maintenance (page 100). 2. Loosen the three paper path hold-down screws (page Tighten the three hold-down screws (page 192, item 6). 4. Return the printer to normal operation (page 101). 161 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 162
shaft. (See page 206, item 15.) 9. Remove the right side platen support spring by repeating step 7 on the right side of the platen. 10. Remove 13. Slide the ribbon guide assembly out of the side plate. 14. Pull the right side of the platen toward the front of the printer and move the platen to - HP LaserJet Enterprise 500 | Maintenance Manual - Page 163
Platen Installation Note The dowel pins protruding from the ends of the platen are the platen shafts. The platen shafts are not of equal length. The platen must be installed with the longer shaft on the right side. 1. Wipe the platen shafts clean of grease and debris. 2. Install two washers on - HP LaserJet Enterprise 500 | Maintenance Manual - Page 164
Saddle Figure 25. Positioning the Platen Adjust Brackets 9. Slide the right ribbon guide assembly into the side plate and install the two 7/32 inch screws 24.) a. With the flat part of the bracket facing the front of the printer, place the two hooks of the upper part of the paper ironer over the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 165
). 19. Install the paper ironer with the black tape towards the rear of the printer (page 206, item 3). 20. Install the shuttle frame assembly (page 177). 21 . Check ribbon guide alignment (page 114). 24. Check the hammer phasing (page 121). 25. Return the printer to normal operation (page 101). 165 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 166
Chapter 6 Section I: Replacement Procedures Note Platen Open Motor Removal 1. Prepare the printer for maintenance (page 100). 2. Cabinet Models: Remove the paper path (page 161). Pedestal Models: Remove the top cover assembly (page 142). 3. Cabinet Models: Remove the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 167
to premature wear of the platen, damaged hammer tips, and poor print quality. 8. While pulling the platen open motor toward the rear of the printer, adjust the belt tension to 1/8 inch deflection midway between the pulleys. Tighten the upper motor mount screw with a 5/16 inch nutdriver. Tighten the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 168
the board by its sides and always wear a properly grounded static wrist strap when handling the power supply board. Removal 1. Prepare the printer for maintenance (page 100). 2. Cabinet Models: Remove the paper path (page 161). Pedestal Models: Remove the top cover assembly (page 142. 3. Disconnect - HP LaserJet Enterprise 500 | Maintenance Manual - Page 169
If the standard terminating resistor pack is not compatible with the particular interface driver requirements of the host computer, other values of pull-up and pull 330 ohm pull-down alternate terminating resistors are provided with the printer. If you install the 220 ohm pull-up resistor, you must - HP LaserJet Enterprise 500 | Maintenance Manual - Page 170
6 Section I: Replacement Procedures 2. Cabinet Models: Install the paper path (page 161). Pedestal Models: Install the top cover assembly (page 142). 3. Return the printer to normal operation (page 101). CMX Controller Board RP1 Default: 470 Ohm Alt 1: 220 Ohm Alt 2: 1K Ohm RP2 Default: 1K Ohm Alt - HP LaserJet Enterprise 500 | Maintenance Manual - Page 171
Ribbon Drive Motor Note Ribbon Drive Motor Removal 1. Prepare the printer for maintenance (page 100). 2. Remove the ribbon hub (page 173). 3. Remove two screws and washers at the front right and rear left corners. (See page 208, item 17.) 2. Return the printer to normal operation (page 101). 171 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 172
Figure 39 on page 208. The removal procedure is the same for both ribbon guides. Removal 1. Prepare the printer for maintenance (page 100). 2. Cut and remove the tie-wrap from the tie wrap hole to free the ribbon guide cable. (See page 208, item 11.) 3. Cabinet Models: Remove the paper path (page - HP LaserJet Enterprise 500 | Maintenance Manual - Page 173
Ribbon Hub Ribbon Hub Removal 1. Prepare the printer for maintenance (page 100). 2. Loosen the Torx T-10 screw in the ribbon spool hub (page 208, item 20 Tighten the Torx T-10 hub screw so that it contacts the flat section of the motor shaft. 3. Return the printer to normal operation (page 101). 173 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 174
Chapter 6 Section I: Replacement Procedures Shaft, Splined Removal 1. Prepare the printer for maintenance (page 100). 2. Remove the paper supports from the splined shaft and support shaft. (See page 204, item 20.) 3. Remove the paper feed timing belt (page 128). 4. Remove the 1/4 inch screw securing - HP LaserJet Enterprise 500 | Maintenance Manual - Page 175
feed timing belt tension (page 102). 11. Adjust splined shaft skew (page 116). 12. Install the paper supports on the splined shaft and support shaft. (See page 204, item 20.) 13. Return the printer to normal operation (page 101). Tractor NOTE: Align the marks on each tractor before inserting the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 176
right side plate. 4. Push the horizontal adjustment knob to compress the curved washers and install the E-ring in the groove on the support shaft. 5. Install the paper supports to the splined shaft and support shaft. (See page 204, item 20.) 6. Return the printer to normal operation (page 101). 176 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 177
Removal 1. Prepare the printer for maintenance (page 100 of the shuttle and pull the clamps back and off the guide shaft. Do not remove the clamps. Hand tighten the clamp go on the tractor support shaft. 8. Open the forms thickness lever all the way. 9. Grasping the support legs cast on both sides - HP LaserJet Enterprise 500 | Maintenance Manual - Page 178
frame assembly by the support legs cast on side clamps over the guide shaft and tighten the assembly is a new or refurbished unit, adjust the 500 lpm models only: set shuttle speed if original shuttle frame assembly was replaced (page 123). 14. Adjust the hammer phasing (page 121). 15. Return the printer - HP LaserJet Enterprise 500 | Maintenance Manual - Page 179
Spring, Extension, Hammer Bank Caution Do not let the hammer bank rotate toward the platen during spring replacement. Caution Removal 1. Prepare the printer for maintenance (page 100). 2. Remove the shuttle cover assembly (page 141). 3. Unhook the extension spring from the spring lugs on the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 180
3, 4, and 9.) Pedestal Models: Loosen the four screws and remove the paper guide and barrier shield. (See page 194, items 3, 4, and 5.) 4. Remove the detector switch assembly and install the two 1/4 inch screws securing it to the printer base. (See page 208, item 4.) 2. Check PMD sensor arm range - HP LaserJet Enterprise 500 | Maintenance Manual - Page 181
Switch Assembly, Platen Interlock Switch Assembly, Platen Interlock Removal 1. Prepare the printer for maintenance (page 100). 2. Cabinet Models: Remove the paper path (page 161). Pedestal Models: Remove the top cover assembly (page 142). 3. Fully close the forms - HP LaserJet Enterprise 500 | Maintenance Manual - Page 182
I: Replacement Procedures Tractor (L/R) Removal 1. Prepare the printer for maintenance (page 100). 2. Remove the support shaft (page 176). 3. Remove the splined shaft (page 174). Installation 1. Using the replacement tractors, install the support shaft (page 176). 2. Install the splined shaft - HP LaserJet Enterprise 500 | Maintenance Manual - Page 183
and attachment hardware. Items marked "Ref" in the illustrations refer to parts that are not spared or are part of another assembly. Illustrations of Printer Components Figure 28. Top Cover, Doors, and Casters page 184 Figure 29. Paper Fence and Chains page 186 Figure 30. Control Panel and Cabinet - HP LaserJet Enterprise 500 | Maintenance Manual - Page 184
Chapter 6 Section II: Illustrated Parts Lists 1 8 9 5 2 3 4 7 6 Figure 28. Top Cover, Doors, and Casters 184 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 185
Illustrations of Printer Components Item No. Part No. Description 1 164212-905PX Top Cover Kit, Cabinet 2 131803-901PX Window, Top Cover 3 153997-001PX Field Kit, Paper Path 4 153084-902PX - HP LaserJet Enterprise 500 | Maintenance Manual - Page 186
Chapter 6 Section II: Illustrated Parts Lists 4 9 1 8 3 5 2 6 7 Figure 29. Paper Fence and Chains 186 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 187
Illustrations of Printer Components Item No. Part No. Description 1 Ref Paper Fence 2 7 151910-001PX Rail, Stacker 8 163559-001PX Kit, Clip, Type 2 9 Ref Screw (4) Notes 500 lpm models 1000 and 1500 lpm cabinet models. Power Stacker Option available for cabinet models: see Appendix H. - HP LaserJet Enterprise 500 | Maintenance Manual - Page 188
Chapter 6 Section II: Illustrated Parts Lists $ $ 4 1 3 2 5 6 7 4 4 Figure 30. Control Panel and Cabinet Details 188 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 189
Illustrations of Printer Components Item No. Part No. Description 1 153700-901PX Control Panel Assembly 1a 154249-901PX Overlay Kit, Cabinet 2 152440-901PX Cable Assembly, Control Panel 3 107961-905PX - HP LaserJet Enterprise 500 | Maintenance Manual - Page 190
Chapter 6 Section II: Illustrated Parts Lists 4 2 10 1 11 9 5 6 7 12 13 8 190 Figure 31. Pedestal Details - HP LaserJet Enterprise 500 | Maintenance Manual - Page 191
Illustrations of Printer Components Item No. Part No. Description 1 153366-901PX Control Panel Assembly 1a 154249-902PX Overlay Kit, Pedestal 2 Ref Screw, Captive (4) 3 Ref Screw, Captive (2) 4 Ref Lid, - HP LaserJet Enterprise 500 | Maintenance Manual - Page 192
Chapter 6 Section II: Illustrated Parts Lists 5 6 4 3 10 12 11 2 1 9 8 7 Figure 32. Inside Covers, Cabinet Models 192 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 193
Illustrations of Printer Components Item No. Part No. Description 1 164295-001PX Shuttle Cover 2 Ref Screw 001PX Platen/Paper Feed Cover Kit 8 108664-903PX Belt, Timing, .080 Pitch, 100 Teeth, .500 Wide 9 Ref Screw, Thread-forming (2) 10 152284-901PX Anti-Static Brush Kit 11 Ref Power - HP LaserJet Enterprise 500 | Maintenance Manual - Page 194
Chapter 6 Section II: Illustrated Parts Lists 3 5 4 3 6 7 10 See Figure 34, page 196. 2 $ 1 8 7 Figure 33. Inside Covers and Card Cage, Pedestal Models 194 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 195
Illustrations of Printer Components Item No. Part No. Description 1 164295-001PX Shuttle Cover 2 Ref Kit 7 Ref Power Supply Shield 8 108664-903PX Belt, Timing, .080 Pitch, 100 Teeth, .500 Wide 9 153488-001PX Platen/Paper Feed Cover Kit 10 153528-901PX Paper Scale Notes (Shroud Assembly, - HP LaserJet Enterprise 500 | Maintenance Manual - Page 196
Chapter 6 Section II: Illustrated Parts Lists 5 To IEC 320 AC Power Input (Connector J301, White Wire) 1 2 $ From Figure 33, page 194. Rotated 180 degrees. 3 4 To Connector P1 (White Wire) To Connector P1 (Black Wire) 6 To IEC 320 AC Power Input (Connector J301, Black Wire) Figure 34. Card Cage - HP LaserJet Enterprise 500 | Maintenance Manual - Page 197
Illustrations of Printer Components Item No. Part No. Description 1 Ref Nut, 6-32 (1) 2 150261-901PX Card Cage Fan Assembly 3 Ref Fan Guard 4 Ref Screw, w/Lock Washer (4) 5 Ref Card Cage, - HP LaserJet Enterprise 500 | Maintenance Manual - Page 198
Chapter 6 Section II: Illustrated Parts Lists Two places: Exploded to show assembly. Do not remove holddown clamps and screws. 2 17 1 4 3 4 To J02 (Shuttle Motor) To J03 (MPU) 5 22 10 11 12 7 13 19 9 6 18 8 22 18 14 18 15 16 20 21 To Terminator Board on Shuttle Frame Figure 35. Print - HP LaserJet Enterprise 500 | Maintenance Manual - Page 199
Illustrations of Printer Components Item No. Part No. Description 1 163802-901PX Hammer Bank Cover 163795-901PX Hammer Bank Cover 164216-901PX Hammer Bank Cover 2 163789-901PX Ribbon Mask, 500 163797-901PX Ribbon Mask, 1000 164204-901PX Ribbon Mask, 1500 3 163812-001PX Ribbon Mask Clamp Plate - HP LaserJet Enterprise 500 | Maintenance Manual - Page 200
Chapter 6 Section II: Illustrated Parts Lists Item No. Part No. Description 18 Ref Screw, Captive, Power Supply (3) 19 202417-001PX SIMM Socket, Flash Memory, 4 MB 20 202412-001PX SIMM Socket, DRAM, 4 MB 21 154141-007PX Security Module, Base 22 163211-901PX CMX Connector Clip Field Kit - HP LaserJet Enterprise 500 | Maintenance Manual - Page 201
Illustrations of Printer Components 201 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 202
Chapter 6 Section II: Illustrated Parts Lists Spring Lug (Do not remove grease) Spring Lug (Do not 3 remove grease) 4 CAUTION: Make sure the MPU cable does not touch the extension spring after cable connection. 1 2 6 5 0.010 " .001 inch (0.254 " .025 mm) Figure 36. Magnetic Pickup (MPU) and - HP LaserJet Enterprise 500 | Maintenance Manual - Page 203
Illustrations of Printer Components Item No. Part No. Description 1 150281-901PX MPU Assembly 2 Ref Bracket, MPU 3 Ref Screw, Socket Cap 4 153537-901PX Extension Spring 5 Ref MPU Cable Connector (P03) 6 Ref Shuttle Motor Cable Connector (P02) Notes Part of item 1 6-32x.38 203 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 204
Chapter 6 Section II: Illustrated Parts Lists 1 2 3 17 67 4 89 10 11 21 5 20 12 16 15 14 13 16 NOTE Item 18 (not shown): Tractor Shaft Hardware Kit, includes items 6, 7, 8, 9, 13, 14, and 21 Item 19 (not shown): Tractor Shaft Kit, includes items 1, 2, 3, 4, 5, 15, and 17 Figure 37. - HP LaserJet Enterprise 500 | Maintenance Manual - Page 205
Illustrations of Printer Components Item No. Part No. Description 1 Ref Screw, Socket Cap 2 Ref Washer, Flat #4 153540-001PX Tractor Shaft Hardware Kit 19 153431-001PX Tractor Shaft Kit 20 155182-901PX Paper Support 21 Ref Bushing Notes Part of item 19 Part of item 19 Part of item 19 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 206
Chapter 6 Section II: Illustrated Parts Lists NOTE: Black tape faces paper motion detector. NOTE: Item 25: Platen Hardware Kit 12 6 24 23 22 18 20 16 21 17 26 3 4 5 7 881 2 9 10 Figure 38. Platen 11 12 13 19 18 17 16 14 15 206 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 207
Illustrations of Printer Components Item No. Part No. Description 1 Ref Setscrew (2) 2 Ref Bracket, Platen (2) 3 150957-901PX Ironer, Paper 4 Ref Screw, Thread-forming (3) 5 Ref Bracket, Ironer 6 Ref Plate, Ironer 7 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 208
Chapter 6 Section II: Illustrated Parts Lists 6 20 18 15 19 17 12 16 2 1 Install screws here. $ Top View Hammer Bank Fan Route cable under base casting 3 44 5 2 (2 ea.) 23 21 22 8 7 9 10 14 13 11 $ See detail above Figure 39. Motors, Fans, and Paper Detector Switch 208 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 209
Illustrations of Printer Components Item No. Part No. Description Notes 1 150261-901PX Card Cage Ref Screw, Hex w/Lock Washer, 10-24x.50 (2) Part of item 23 11 163597-901PX Ribbon Guide Kit 12 Ref Ribbon Guide Kit Same as item 11 13 Ref Washer, Flat #4 Part of item 12 14 Ref Screw, - HP LaserJet Enterprise 500 | Maintenance Manual - Page 210
Chapter 6 Section II: Illustrated Parts Lists See inside detail below. % To IEC 320 AC Power $ Input (Connector J301, Black Wire) To IEC 320 AC Power Input (Connector J301, White Wire) $ % (Card cage fan and power supply board removed for clarity.) Black Wire To Connector P1 (Black Wire) - HP LaserJet Enterprise 500 | Maintenance Manual - Page 211
Illustrations of Printer Components Item No. Part No. Description 1 142013-901PX Circuit Breaker 2 Ref IEC 320 AC Power Connector 3 Ref Chassis Ground Stud 4 Ref Connector P1 5 Ref Cable - HP LaserJet Enterprise 500 | Maintenance Manual - Page 212
Chapter 6 Section II: Illustrated Parts Lists 5 2 3 1 8 7 4 6 Figure 41. Ethernet Interface Assembly 212 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 213
Illustrations of Printer Components Item No. 1 2 3 4 5 6 7 8 Part No. Description Ref Ref 202049-001 Ref 152439-901 170622-001 Ref Ref Screw, Connector Cover (2) Cover Plate, Centronics Ferrite Clamp - HP LaserJet Enterprise 500 | Maintenance Manual - Page 214
Chapter 6 Section II: Illustrated Parts Lists 214 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 215
graphics by printing patterns of ink dots an entire line at a time. This technique is called line matrix printing. Every text character is stored in printer memory as a pattern of dots on a logical grid called the dot matrix. (See Figure 42.) The ink dots are made by a row of small hammers - HP LaserJet Enterprise 500 | Maintenance Manual - Page 216
Chapter 7 Line Matrix Printing When the shuttle reaches the end of a sweep, it reverses direction, the paper is advanced one dot row, and the hammers print the next row of dots as the shuttle sweeps in the opposite direction. After a line of characters is printed, hammer action stops and the paper - HP LaserJet Enterprise 500 | Maintenance Manual - Page 217
Shuttle Scan Dot Row *1 1 1 1 2 2 1 2 3 3 1 2 3 4 4 1 2 3 4 5 5 1 2 3 4 5 6 6 1 2 3 4 5 6 7 7 Succesive Hammer Strokes Per Scan *1 3 *1 35 *1 3 5 7 * 1 3 5 7 9 * * Even column dot centers within the printed character area and character space hammer positions - HP LaserJet Enterprise 500 | Maintenance Manual - Page 218
Hammer Bank Assembly Counterweight Assembly Connecting Rod Shuttle Motor Guide Shaft Figure 45. Shuttle Frame Assembly Hammer Bank Assembly the number of hammer spring assemblies on the hammer bank vary according to printer model: • LineJet 500Q and LineJet 500P: seven 4-hammer assemblies, for - HP LaserJet Enterprise 500 | Maintenance Manual - Page 219
) Two electromagnetic coils are mounted behind each hammer and wound around each pole piece. The coils are normally de-energized. When hammer driver logic determines that a hammer must print a dot, a current pulse energizes the coils behind it. The polarity of the resulting magnetic field opposes - HP LaserJet Enterprise 500 | Maintenance Manual - Page 220
Shaft Paper Path Tractors Splined Shaft Vertical Adjustment Knob and Splined Shaft Pulley Shuttle Cover Assembly Paper Supports Paper Feed Timing Belt (under the cover) Figure 47. Paper Transport System A two-phase DC stepper motor, directed by the engine controller (EC), drives two - HP LaserJet Enterprise 500 | Maintenance Manual - Page 221
the shuttle assembly is moving. Ribbon motion reverses when a metal strip at either end of the ribbon crosses the left or right ribbon guide, completing a circuit that causes both motors to reverse direction. Constant ribbon tension is maintained by controlling each motor with a drive and a drag - HP LaserJet Enterprise 500 | Maintenance Manual - Page 222
Shield GND Platen Motor Paper Motion Detector Paper Out Detector Left Ribbon Guide Left Ribbon Motor Flex Circuits: Shuttle Assy Terminator Board Shuttle Motor Hammer Fan MPU Figure 49. Functional Elements of the Printer 222 Cabinet Exhaust Fan (Cabinet Models only) Paper Feed Motor Platen - HP LaserJet Enterprise 500 | Maintenance Manual - Page 223
information to the controller board and displays information from the controller on the LCD. A status indicator next to the LCD also conveys printer status information to the user. The LCD, status indicator, and keys are mounted on a printed circuit board assembly enclosed in a protective housing - HP LaserJet Enterprise 500 | Maintenance Manual - Page 224
for the power supply and final hammer drive circuits, all logic and drive circuitry for the printer are contained on the controller board. The CMX controller board consists of two functional units: the motion as it feeds dot data to the hammer drivers. Figure 51 summarizes this architecture. 224 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 225
Ribbon Transport System RS-232 Diagnostic Port Control Panel 25 o4r04M0 HMzHz Expansion Port RS-232/422 IEEE-1284 (Parallel) TTL Diagnostic Port Fault Sensors Paper Feed Ribbon Shuttle Platen Hammer Drive Figure 51. CMX Controller Board Block Diagram 225 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 226
VX ASIC (Application-Specific Integrated Circuit) • Host I/O Drivers/Termination 68EC030 Microprocessor A Motorola® 68EC030 microprocessor serves as the it has an internal charge pump to make these voltages itself). This memory supports at least 100,000 write/erase cycles. The flash memory is 32 bits - HP LaserJet Enterprise 500 | Maintenance Manual - Page 227
is not contained in the 68EC030 processor. The VX provides the following services: • Memory Access Controller • DRAM Controller • Flash Controller • Two and so on. DRAM Controller The VX supports up to four banks of page mode DRAM. FLASH Controller The VX supports up to four banks of flash memory. - HP LaserJet Enterprise 500 | Maintenance Manual - Page 228
these types of hosts is provided on the CMX board, except for the drivers themselves, ESD protection, and terminations. Host I/O Drivers and Termination Beyond the 030 processor and VX ASIC, additional support circuitry completes the serial and parallel interfaces. These circuits include: • RS-232 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 229
of three separate processors used in earlier controller board architectures. In this manual, the 80C166 is referred to as either the EC or the numerous counters, PWM generators, and FIFOs in the MECA to control many printer motor functions. The MECA is a custom gate array, specifically designed to - HP LaserJet Enterprise 500 | Maintenance Manual - Page 230
automatically senses and adjusts to any commercial electrical system that provides AC mains potential in 50 or 60 Hertz systems. In other words, the printer can operate anywhere in the world on local commercial power. The power supply converts alternating current (AC) to direct current (DC) at three - HP LaserJet Enterprise 500 | Maintenance Manual - Page 231
and +8.5 V buses for the hammer bank and all motors. The +5 V supply has an isolated return line that connects to the +48 V return at the printer load. Both returns are tied together in a one-point ground. The +5 V power supply has its own inverter, separate from the +48 V and +8.5 V outputs. There - HP LaserJet Enterprise 500 | Maintenance Manual - Page 232
board. These programming languages simplify the job of creating forms, bar codes, logos, expanded characters, and other graphics. The languages enable the printer to print sideways, upside down, and to make forms combining graphics, alphanumeric data, and bar codes-all in a single pass. Documents - HP LaserJet Enterprise 500 | Maintenance Manual - Page 233
Fan page 252 Control Panel page 253 Exhaust Fan page 254 Hammer Bank Logic page 255 Hammer Bank Power page 256 MPU page 257 Ribbon Guide Kit page 258 Ribbon Motor, Extension page 259 Shuttle Motor Drive page 260 Power Stacker Cables Frame Cable, Power Stacker page 261 Logic Cable, Power - HP LaserJet Enterprise 500 | Maintenance Manual - Page 234
Appendix A Vertical Rail Cable, Power Stacker page 264 Fan Assembly, Hammer Bank page 265 Magnetic Pickup (MPU) Assembly page 266 Switch Assemblies Switch Assembly, Paper Detector page 267 Switch Assembly, Platen Interlock page 268 234 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 235
J110 P110 J112 P112 J310 P310 8 36 J203 Parallel I/O Exhaust Fan* * Cabinet Power Models Stacker Only P307 2 Paper Feed Motor Platen Open Switch Right Ribbon Guide P03 J03 Jumper Wire J06 P06 Left Ribbon 4 Motor Print Mechanisms Hammer Bank Fan 2 4 Right Ribbon Motor - HP LaserJet Enterprise 500 | Maintenance Manual - Page 236
Wire J06 P06 J102 +5V Remote J107 MSR P107 MSR Power Stacker +48V Ret +48V Paper Feed Motor +5V Platen Open Switch +5V Right Ribbon Guide +48V Right Ribbon Motor - HP LaserJet Enterprise 500 | Maintenance Manual - Page 237
open 17, 19 Open CVO 18, 20 Continuity: switch closed CCF = Card Cage Fan Open: switch open LRIB M = Left Ribbon Motor LRP = Left Ribbon Guide MPU 17, 19 670 Ω PLAT M = Platen Open Motor PMD = Paper Motion Detector (Switch) CVO = Cover Open Switch POD = Paper Out Detect (Switch) EHF - HP LaserJet Enterprise 500 | Maintenance Manual - Page 238
Appendix A Controller, CMX 238 J201 RS232/RS422 1 2 3 4 5 26 6 7 8 9 10 11 12 13 14 15 16 27 17 18 19 20 21 22 23 24 25 HOST TXD HOST RXD HOST RTS HOST CTS HOST DSR HOST DCD NC NC NC NC NC NC DIFF RXD- NC DIFF RXD+ NC DIFF TXDHOST DTR NC NC NC NC DIFF TXD+ J110 Front Panel - HP LaserJet Enterprise 500 | Maintenance Manual - Page 239
4.7K 0.1W J102 1 2 + 10 mF 10% 16V 0.1 mF 20% 50V 1000 PF 10% 50V J17 Paper Stacker VCC EXT 5V 1000 PF 10% 50V L6 500 OHM 1 2 3 4 5 6 7 NC 8 NC 9 NC 10 NC 470 PF 10% 50V 470 PF 10% 50V 470 PF 10% 50V 470 PF 10% 50V PPPPR SSTTKKSSTTAAT0 PPPPR - HP LaserJet Enterprise 500 | Maintenance Manual - Page 240
Appendix A Controller (continued) 240 J105 Hammer Bank Power J101 Power Supply J106 1 Motor Sensor Left 2 3 1 2 3 4 5 6 7 PLAT 1 RIB L1 PLAT 2 RIB L2 PLAT 3 RIB L3 PLAT 4 4 5 6 7 8 +48V 9 10 8 RIB L4 CC FAN+ 9 10 11 12 L RBN POST+ CC FAN- L RBN POST- 0.01 mF 10% 100V 13 POD - HP LaserJet Enterprise 500 | Maintenance Manual - Page 241
1 J2 2 3 EC Diagnostics 4 5 6 7 8 9 10 VCC 10K 1% 0.1W EC DB TXD EC DB RXD NC PPR TRIG PPR MOVING FT EVENT MPU OUT SHUT DIR Controller (continued) 241 J108 Hammer Bank Logic TOROID 1 50 MHz 2 HMR DAT 3 HMR DAT RET 4 HMR CLK 5 HMR CLK RET 6 CMD DAT 7 CMD DAT RET 8 CMD - HP LaserJet Enterprise 500 | Maintenance Manual - Page 242
Appendix A Power Supply 242 GND LOAD LOAD Cable Assy, AC In, Power Supply 1 2 P1 3 = RING TERMINAL = FAST-ON TERMINAL (Line Filter Area) 1 AC Input AC AC COMMON CHASSIS GND J1 PIN 1 * V3.5 BOARD PIN 1 = N TEMP HI N TEMP HI * 1 V4 BOARD PIN 1 = N AC FAIL N STBY 2 +5V 3 +5V 4 +5V RET - HP LaserJet Enterprise 500 | Maintenance Manual - Page 243
J1 Test 1 2 3 4 5 6 7 8 9 10 N RESET N 42V FAIL PMD SIG PAP IN SIG SW1 SW2 SW3 SW4 J2 VCC Test 1 SKP DB TXD 2 SKP DB RXD 3 4 LIMIT SIG 5 FULL SIG 6 BEAM SIG 7 N PD FLT 8 N EL FLT 9 N PI FLT 10 J3 Vertical Rail 1 2 3 4 5 6 7 8 9 10 STK FULL SWT FULL SWT RET STK LIMIT SWT - HP LaserJet Enterprise 500 | Maintenance Manual - Page 244
Appendix A Cable Routing, Cabinet Model 244 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 245
Left Side of Printer Front of Printer Right Side of Printer Cable Routing, Mechanism Base, Cabinet Model 245 PLATEN LEVER VIEW A-A To J106 on CMX board NOTE: This view shows the underside of the mechanism base. To J107 on CMX board - HP LaserJet Enterprise 500 | Maintenance Manual - Page 246
Appendix A Cable Routing, Pedestal Model 246 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 247
Left Side of Printer Front of Printer Right Side of Printer Cable Routing, Mechanism Base, Pedestal Model 247 To J106 on CMX board on Controller (See page 166 for connector detail.) (Not connected on pedestal models) - HP LaserJet Enterprise 500 | Maintenance Manual - Page 248
Appendix A Cable Assembly, Centronics I/O 152439-901PX PIN 1 NOTE: If you replace the I/O cable assembly, you must install the ferrite clamp. See Appendix E. PIN 1 248 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 249
Cable Assembly, 2-Pin Jumper, 0.1 Ctr 154470-001 249 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 250
Appendix A Cable Assembly, AC In, Power Supply Kit No. 153502-001PX To Power Supply J1 To Circuit Breaker 250 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 251
Cable Assembly, AC Power Input Kit No. 153502-001PX To Circuit Breaker Input Power Connector 251 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 252
Appendix A Cable Assembly, Card Cage Fan 152422-901PX PIN 1 PIN 1 252 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 253
Cable Assembly, Control Panel PIN 1 (Gray) PIN 8 (Brown) 152440-901PX NOTE: If you replace the control panel cable, you must install two ferrite shielding beads. See Appendix E. PIN 8 (Brown) PIN 1 (Gray) 253 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 254
Appendix A Cable Assembly, Exhaust Fan 152424-901PX PIN 1 PIN 1 254 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 255
Cable Assembly, Hammer Bank Logic 152421-901PX 255 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 256
Appendix A Cable Assembly, Hammer Bank Power 164805-901PX PIN 1 PIN 1 256 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 257
Cable Assembly, MPU 152425-901PX PIN 2 PIN 1 PIN 3 PIN 1 257 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 258
Appendix A Ribbon Guide Kit 163597-901PX Pin Connection P106 (LRP) / P107 (RRP) Pin 1 Pin 2 Wire Color Black Black Pin 2 NOTE: Left ribbon guide shown. Right is Pin 1 mirror image. 258 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 259
Cable Assembly, Ribbon Motor, Extension 154067-001PX 259 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 260
Appendix A Cable Assembly, Shuttle Motor Drive 152420-001PX 260 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 261
Frame Cable, Power Stacker 261 158445-001PX 1 2 3 M1 A1 M1 A2 M1 = REAR PADDLE MMRE1OS=TISROTERAANRCPEA=D1D5L.E2 MOTOR ˙ 1.5 W 4 M1 B1 R/ PeHsAisStaEnce = 15.2 ± 1.5 Ohm / 5 M1 B2 Phase 6 M2 A1 M2 = FRONT PADDLE 7 8 9 10 M2 A2 M2 B1 M2 B2 MRMRPHE2eOSAs=TISiSsFOETtRaAROnNNcCeTEP== - HP LaserJet Enterprise 500 | Maintenance Manual - Page 262
Appendix A Logic Cable, Power Stacker 158444-001PX 262 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 263
Power Cable, Power Stacker 158443-001PX 263 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 264
Appendix A Vertical Rail Cable, Power Stacker 158442-001PX 264 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 265
152416-901PX Fan Assembly, Hammer Bank 265 P107/HBF P107 / HBF - HP LaserJet Enterprise 500 | Maintenance Manual - Page 266
Appendix A Magnetic Pickup (MPU) Assembly 150281-901PX 266 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 267
Switch Assembly, Paper Detector 152415-901PX 267 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 268
Appendix A Switch Assembly, Platen Interlock 152417-901PX 268 P107/PLO - HP LaserJet Enterprise 500 | Maintenance Manual - Page 269
6 6 6 6 1 Part No. C3207-60001 C3208-60001 C3209-60001 C3210-60001 C3212-60001 Printers are shipped with one box of six 60 yard bar code/OCR ribbons. 100 yard ribbons can All HP LP Series Models All LineJet Models All HP LP Series Models Product Lifetime 30 Million Characters 30 Million Characters - HP LaserJet Enterprise 500 | Maintenance Manual - Page 270
, LPQ1500 50 Million Characters All LineJet Models All HP LP Series Models 27 Million Characters or 2,800 shipping labels LineJet 500Q, LPQ1000, LPQ1200, LPQ1400, LPQ1500 45 Million Characters or 4,667 shipping labels Printer Dimensions Cabinet Model: Height: 42.5 inches (108 cm) Width: 27 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 271
of the U.S. Environmental Protection Agency. When in the reduced power state, the printer displays "Power Saver Mode," and is activated at the control panel. (Refer to the User's Guide.) Electrical Characteristics LineJet 500P Printing, Typical1 2.15A Printing, Maximum2 3.60A Non-Printing3 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 272
Appendix B Material Safety Data Sheets LineJet 500P Printing, Typical1 648 BTU/hr Printing, maximum2 1092 BTU/hr Non-Printing3 307 BTU/hr Current LineJet 500Q Heat 652 BTU/hr 833 BTU/hr 287 BTU/hr LineJet 1000Q LineJet 1500Q 925 BTU/hr 1297 BTU/hr 294 BTU/hr 1342 BTU/hr 1754 BTU/hr 287 BTU - HP LaserJet Enterprise 500 | Maintenance Manual - Page 273
273 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 274
. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference - HP LaserJet Enterprise 500 | Maintenance Manual - Page 275
Warning: This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. Dieses Gerät erfüllt die Bedingungen der EN 55022 Klasse A. Für diese Klasse von Geräten gilt folgende Bestimmung nach dem EMVG: - HP LaserJet Enterprise 500 | Maintenance Manual - Page 276
Appendix B Communication Notices 276 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 277
-Specific Integrated Circuit Attention Buffered Hammer Bank Fan Buffered Communication Bi-phase Communications Processor Buffered Hammer Shift Clock Buffered, Low True Buffered, Low True, Lower Driver Bits Per Second Busy British Thermal Unit 277 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 278
CTL CTS CU CUR D0, D1, etc. DAT DC DCD DIAG DIFF DMA DP DPEN DPMC DPU DRAM DRV DRVR DSR DTR Buffered Upper Driver Cathode Card Cage Card Cage Fan Change Circuit Clock Cover Open Collector Communication Controller Command The controller board Connector, Connection Characters Per Inch Carriage Return - HP LaserJet Enterprise 500 | Maintenance Manual - Page 279
Circuit Ground Hammer Bank Hammer Bank ASIC Hammer Bank Fan Hammer Bank, Left Hammer Bank Power Hammer Bank, Right Hammer Driver Hammer Driver Integrated Circuit Hammer Driver Phase Hammer Bank Logic, Signals, and Power Integrated Circuit Identification Intelligent Graphics Printing Instruction 279 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 280
Local Area Network Liquid Crystal Display Light Emitting Diode Line Feed Low Lines Per Inch Lines Per Minute Left Ribbon Left Ribbon Guide Motor Maintenance Jack, RS-232 (Optional) Mechanism Engine Control ASIC Mechanism microfarad (10-6 farad) Mounting Hole, Main Harness Metal Oxide Semiconductor - HP LaserJet Enterprise 500 | Maintenance Manual - Page 281
Board Assembly PCB Printed Circuit Board PD Paper Detect(or) PE Printer Error, Paper Empty PER PF Peripheral Device Paper Feed, picofarad (10-12 farad) PFM Paper Feed Motor PHA Phase A PHB Phase B PI Paper Instruction PLAT Platen PLM Platen Motor PLO Platen Open (Switch) PMD - HP LaserJet Enterprise 500 | Maintenance Manual - Page 282
SLCT Slew SMD SPU SRAM STAT STBY STK SW SYNC TCB TEMP TOF TP Ribbon Guide Ribbon Guide, Left Ribbon Guide, Right Ribbon Motor Ribbon Motor, Left Ribbon Motor, Right Request Right Ribbon Right Ribbon Guide Ribbon and Shuttle Processor Reset Request to Send Receive Data Security (Key) Select Sense - HP LaserJet Enterprise 500 | Maintenance Manual - Page 283
TTL TXD UART UDPH UNDEF USART V VCC VDD VSS VX WR w/ w/o XMT Transistor-Transistor Logic Transmit Data Universal Asynchronous Receiver/Transmitter Upper Drive Phase Undefined Universal Synchronous/Asynchronous Receiver/ Transmitter Volts Voltage at Collector Voltage at Drain Voltage at Source A - HP LaserJet Enterprise 500 | Maintenance Manual - Page 284
Appendix C 284 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 285
printout of all saved configurations. (Refer to the User's Guide.) (Installing new software erases all saved configurations. You will use the printouts to restore printer configuration.) 2. Set the printer power switch to O (off). 3. If the printer is already connected to the serial or parallel port - HP LaserJet Enterprise 500 | Maintenance Manual - Page 286
NEXT) key; "SELECT DOWNLOAD PORT=DATAPRODUCT" appears on the LCD. 16. Press < (NEXT) again to cycle through the download ports available in the printer: DATAPRODUCT (parallel) CENTRONICS* (parallel) (default port) RS232-9600 (RS-232 serial, 9600 baud) RS232-19.2K (RS-232 serial, 19200 baud) RS232-38 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 287
the load process and status. (See Table 2, page 34.) 20. When the new program has successfully loaded into memory and the printer has reset itself, set the printer power switch to O (off). 21. Unplug the AC power cord from the printer. 22. Remove the diskette from the computer and store it with the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 288
Server User's Guide, 170989-001PX. The load commands are different, depending on the printer port you use Manual.) (Installing new software erases all saved configurations. You will use the printouts to restore printer configuration.) 2. Set the printer power switch to O (off). 3. If the printer - HP LaserJet Enterprise 500 | Maintenance Manual - Page 289
the data cable to the appropriate I/O port of the printer. 8. Plug the AC power cord into the printer. 9. Power on the computer. 10. Create a directory at the DOS prompt: CD DOWNLOAD 12. Insert the last diskette in the series (e.g., 2 of 2, 3 of 3, etc.) into diskette drive A (or B) of - HP LaserJet Enterprise 500 | Maintenance Manual - Page 290
< (NEXT) again to cycle through the download ports available in the printer: DATAPRODUCT (parallel) CENTRONICS* (parallel) (default port) RS232-9600 ( 38400 baud) RS422-115K (RS-422 serial, 115000 baud) 25. When the printer download port you want to use is displayed on the LCD, press ENTER. "WAITING - HP LaserJet Enterprise 500 | Maintenance Manual - Page 291
the load process and status. (See Table 2, page 34.) 28. When the new program has successfully loaded into memory and the printer has reset itself, set the printer power switch to O (off). 29. Unplug the AC power cord from the printer. 30. Remove the diskette from the computer and store it with the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 292
Appendix D Loading Flash Memory from Multiple Diskettes 292 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 293
19? SPEED IN CHARACTERS PER SECOND = 240? RECORD WIDTH = 66? OUTPUT DEVICE = 0? ACCEPT JOB/SESSIONS = N? ACCEPT DATA = N? INTERACTIVE = N? DUPLICATIVE = N? INITIALLY SPOOLED = Y? AUTO REPLY = N? DRIVER NAME = HIOASLP0For use with ATP = HIOASLP2For use with ADCC DEVICE CLASSES = LP?User's choice 293 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 294
/ iX MPE-XL / MPE / iX Typical Configuration Within NMMGR follow the menu: Open Config DTS Go to Profiles Add or Modify Printer Type [18](18, 21, 22, or 26) or Printer Type File Name __________ Line Speed [9600](300 through 38400) Record Width [132](1 . . . 2048 bytes) Modem Type [0](0-None, 1-US - HP LaserJet Enterprise 500 | Maintenance Manual - Page 295
cio, ca0 N/A The Drivers shown in this table should be installed in the Kernel Configuration. Configuration Guidelines Within SAM follow the menu: Printers and Plotters Printers/Plotters Printer/Plotter Manager menu . . . select Actions Add Local Printer/Plotter Add parallel Printer/Plotter or Add - HP LaserJet Enterprise 500 | Maintenance Manual - Page 296
Appendix E HP9000 / HP-UX® 296 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 297
F Paper Specifications and Forms Design Introduction LineJet printers use dot matrix line printing technology, which permits a high degree of printing flexibility. Dot matrix technology to use for designing forms that will run smoothly through the print station of the HP LineJet printer. 297 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 298
before buying large quantities. Make all measurements at 20° to 26° Celsius (68° to 78° Fahrenheit) and 45% to 55% relative humidity. LineJet printers perform well with forms that meet the specifications listed in Table 7 and Table 8 below. Note Hewlett-Packard conforms to ANSI® Standard X3.96 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 299
of the form. Print Area The region where printing occurs, and which is always between the side perforations. Print Station The area in the printer where the actual impacts that constitute printing occur. Staple A punch-cut fastening stitch located along the vertical edge and within the side - HP LaserJet Enterprise 500 | Maintenance Manual - Page 300
Appendix F Paper Guidelines The figures below illustrate the terms used in this appendix. Side Perforation Margin Area Major Perforation Tractor Pin Hole Print Area Form Span Figure 52. Basic Forms Terminology Side View of Form Printed Side of Form Outward Perforation Inward Perforation Figure 53. - HP LaserJet Enterprise 500 | Maintenance Manual - Page 301
such as delamination of glues, creasing, folding, etc. Form Types Three kinds of continuous form paper are specified for use with the printer: • Edge-perforated, fanfolded, single-part forms • 2- to 6-part multipart carbon forms • 2- to 4-part multipart carbonless forms For all forms, the width - HP LaserJet Enterprise 500 | Maintenance Manual - Page 302
righthand hole (CL to CL) Maximum parallel deviation of lefthand hole CL to righthand hole CL Inches 0.236 ± 0.028 0.156 ± 0.004 0.500 ± 0.002 0.004 0.006 0.006 Millimeters 6.0 ± 0.1 4.0 ± 0.1 12.7 ± 0.05 0.1 0.15 0.15 Methods of Forms Attachment Any method of attachment (staples, crimps, gluing - HP LaserJet Enterprise 500 | Maintenance Manual - Page 303
Chaff Content Preferred Tie Point Unacceptable Cut Point Direction of Forms Movement Cut Point Tie Point Cut-to-Tie Ratio A common cut-to-tie ratio for bond forms is 4:1 (that is, 80% cut to 20% ties). This value is dictated chiefly by the application program that the form runs under. Lower - HP LaserJet Enterprise 500 | Maintenance Manual - Page 304
Appendix F Form Design Checklist Form Design Checklist Use this checklist to help you remember key areas of consideration when designing and ordering forms and paper stocks. Environment ________ Before they are used, forms are given at least 24 hours of condensing time in the environment in - HP LaserJet Enterprise 500 | Maintenance Manual - Page 305
righthand hole (CL to CL) Maximum parallel deviation of lefthand hole CL to righthand hole CL Inches 0.236 ± 0.028 0.156 ± 0.004 0.500 ± 0.002 0.004 0.006 0.006 Millimeters 6.0 ± 0.1 4.0 ± 0.1 12.7 ± 0.05 0.1 0.15 0.15 Methods of Forms Attachment ________ Must not allow air entrapment between - HP LaserJet Enterprise 500 | Maintenance Manual - Page 306
Appendix F Form Design Checklist Thickness Buildup = ________ in. / cm NOTE: A cut-to-tie ratio that causes a thickness buildup greater than 0.025 in. / 0.0635 cm, or that creates an evenness variation greater than 0.003 in. / 0.00762 cm, will result in an unreliable and unpredictable form. - HP LaserJet Enterprise 500 | Maintenance Manual - Page 307
who can ensure conformance to the guidelines in this appendix and who can recommend costeffective purchases. Storage and Handling The performance of the printer depends to a large degree on the condition of the paper used; therefore, the following principles for packaging, handling, and storage are - HP LaserJet Enterprise 500 | Maintenance Manual - Page 308
Appendix F Summary 308 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 309
to reduce radio frequency interference (RFI) to and from electronic equipment located near the printer. Two kinds of ferrite noise suppressors are used: 1. Shielding Bead (P/N 141445-001PX) is a cylindrical core, through and around which the control panel cable assembly is - HP LaserJet Enterprise 500 | Maintenance Manual - Page 310
Appendix G Connector P110 Control Panel Cable Assembly NOTE: Two turns around each bead. Shielding Bead P/N 141445-001PX Parallel I/O Cable Assembly Connector P310 Connector P112 Ferrite Core with Clamp and Adhesive Backing P/N 202049-001PX NOTE: This core attaches to the right rear card - HP LaserJet Enterprise 500 | Maintenance Manual - Page 311
the cabinet, so you must remove the stacker assembly from the printer in order to service it or replace most of its components. The power paper stacker the stacker. This appendix has two parts: • Removal/installation instructions for the power stacker assembly and components that require the most - HP LaserJet Enterprise 500 | Maintenance Manual - Page 312
Appendix H Removing the Power Stacker Removing the Power Stacker 1. Set the printer power switch to O (off). 2. Unplug the power cord. 3. Unload paper from the stacker area. (Refer to the User's Guide.) 4. Remove the paper tent. (See Figure 56.) 1 Legend: 1. Paper Tent Figure 56. Removing the Paper - HP LaserJet Enterprise 500 | Maintenance Manual - Page 313
6. Remove three screws and washers from the stacker control panel. (See Figure 58.) 2 1 3 2 Legend: 1. Long Screw 2. Washer 3. Short Screw Figure 58. Removing the Stacker Control Panel 7. Remove four cables from the stacker control panel, and remove the stacker control panel. (See Figure 59.) 1 2 3 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 314
Appendix H Removing the Power Stacker 8. Remove the two 5/32 x 3/4 inch screws and washers securing the vertical rails to the upper frame cross-member at the rear of the cabinet. (See Figure 60.) 9. Raise the elevator assembly. 1 2 3 1 4 5 6 314 Legend: 1. Vertical Rail 2. Washer (2) 3. Screw, 5/ - HP LaserJet Enterprise 500 | Maintenance Manual - Page 315
position. 13. Slide the stacker assembly slightly to the right to clear the air exhaust duct. Tilt the vertical rails toward the front of the printer until they clear the upper frame cross-member. Slide the stacker assembly to rear and angle it out of the cabinet, as shown in Figure - HP LaserJet Enterprise 500 | Maintenance Manual - Page 316
Appendix H Removing the Power Stacker 1 4 2 3 Legend: 1. Upper Frame Cross-Member 2. Elevator Assembly 3. Stacker Base 4. Vertical Rail Figure 62. Removing the Stacker Assembly 316 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 317
Power Stacker NOTE: This procedure is for complete installation of the power stacker, including cable assemblies and the stacker control panel. 1. Set the printer power switch to O (off). 2. Unplug the power cord. 3. Remove paper. 4. Loosen the three paper path hold-down screws. Slide the paper path - HP LaserJet Enterprise 500 | Maintenance Manual - Page 318
Appendix H Installing the Power Stacker 5. Connect the power stacker logic cable P103 to connector J17 on the CMX controller board. (See Figure 64.) 6. Disconnect the power supply cable from connector J101 on the CMX controller board. (See Figure 64.) 7. Connect power supply cable connector P101 to - HP LaserJet Enterprise 500 | Maintenance Manual - Page 319
Caution The paper stacker assembly mounts to the rear upper frame crossmember and the cabinet floor. It is a snug fit. During installation, take care to avoid scratching painted surfaces or damaging the stacker. 9. Loosen one turn-DO NOT REMOVE-the Torx T-10 screws securing the vertical rails to - HP LaserJet Enterprise 500 | Maintenance Manual - Page 320
Appendix H Installing the Power Stacker 10. Position the elevator assembly at the bottom of the vertical rails. (See Figure 66a.) 11. Position the stacker assembly slightly to the right in order to clear the air exhaust duct, insert the vertical rails inside and under the upper frame cross-member, - HP LaserJet Enterprise 500 | Maintenance Manual - Page 321
a b 1 4 2 3 c Legend: 1. Upper Frame Cross-Member 2. Elevator Assembly 3. Stacker Base 4. Vertical Rail Figure 66. Stacker Installation 321 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 322
Appendix H Installing the Power Stacker 14. Align the holes in the stacker base with the holes in the cabinet floor. (See Figure 66c and Figure 67.) 15. Install finger tight the two 5/32 x 3/4 inch screws and washers securing the vertical rails to the upper frame cross-member. 16. Install and - HP LaserJet Enterprise 500 | Maintenance Manual - Page 323
NOTE: The stacker assembly is exploded to show mounting screws and locations. 1 2 7 6 4 5 3 Legend: 1. Washer (2) 2. Screw, 5/32 x 3/4 inch (2) 3. Stacker Base 4. Screw, 7/64 x 1/2 inch or Torx T-10 (2) 5. Washer (2) but no washers with Torx T-10 screws 6. Vertical Rail 7. Upper Frame Cross- - HP LaserJet Enterprise 500 | Maintenance Manual - Page 324
Appendix H Installing the Power Stacker 22. Install the paper fence. (See Figure 68.) 1 2 Legend: 1. Paper Fence 2. Stacker Base Figure 68. Paper Fence 324 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 325
23. Gather the rail cable, frame cable, logic cable, and power cable. Route the cables outboard of the elevator assembly. 24. Connect the stacker cables to the rear of the stacker control panel assembly, as shown in Figure 69. 1 2 3 4 Legend: 1. Logic Cable (P104) 2. Power Cable 3. Frame Cable (P102 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 326
Appendix H Installing the Power Stacker 25. Position the stacker control panel as shown in Figure 70, and install the mounting screws. 1 2 3 Legend: 1. Stacker Control Panel 2. Long Screw 3. Short Screw (2) Figure 70. Installing the Stacker Control Panel 326 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 327
71. Securing Stacker Cables 27. Install the paper path that you removed in step 4. 28. Install paper and test stacker operation. (Refer to the User's Guide.) 327 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 328
Appendix H Replacing the Constant Force Spring Replacing the Constant Force Spring 1. Remove the stacker assembly from the printer. (See page 312.) Caution In the next step, do not over-tighten the tie wraps or string. Tighten the tie wraps or string just enough - HP LaserJet Enterprise 500 | Maintenance Manual - Page 329
Warning The constant force spring is a high tension spring. To avoid pinching your fingers, coil the spring slowly and carefully. Do not let the spring twist or crimp. 3. Remove the shoulder screw, washers, and spacer from the constant force spring and drum. Let the spring coil itself up until it - HP LaserJet Enterprise 500 | Maintenance Manual - Page 330
6. While holding the drum tightly, continue to curl the spring until it is completely unwound from the drum. (See Figure 74.) 7. To install a new constant force spring, reverse the steps of this procedure. 1 2 Legend: 1. Spring 2. Drum Figure 74. Removing the Constant Force Spring from the Drum 330 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 331
Replacing the Timing Belts 1. Remove the stacker assembly from the printer. (See page 312.) 2. Raise the elevator assembly to its highest position and secure it to the vertical rails using tie wraps or string. (See Figure - HP LaserJet Enterprise 500 | Maintenance Manual - Page 332
Appendix H Replacing the Timing Belts 5. Loosen the two setscrews on the motor pulley and remove the pulley. Unplug the motor cable, if necessary. (See Figure 76.) Go to step 6. 1 2 2 3 Legend: 1. Timing Belt Motor 2. Setscrew 3. Pulley Figure 76. Removing the Timing Belt Motor Pulley 6. Remove the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 333
7. Remove two Allen screws from the belt clamp that secures the timing belt to the stacker frame. (See Figure 78.) 1 2 1 2 Legend: 1. Allen Screw 2. Belt Clamp Figure 78. Removing the Belt Clamps 333 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 334
Appendix H Replacing the Timing Belts 8. Remove the timing belt by working it around the vertical rail and constant force spring. (See Figure 79.) NOTE: Left timing belt is shown. Right is the same. 1 Legend: 1. Timing Belt Figure 79. Removing the Timing Belt 9. To install a timing belt, reverse the - HP LaserJet Enterprise 500 | Maintenance Manual - Page 335
Illustrated Parts Breakdown The Illustrated Parts Breakdown (IPB) consists of exploded drawings of the power stacker assembly and subassemblies. Parts are listed next to each drawing. Note Only replaceable parts are assigned part numbers. If a part or assembly is damaged but does not have a part - HP LaserJet Enterprise 500 | Maintenance Manual - Page 336
Appendix H Illustrated Parts Breakdown See page 338. $ 14 35 30 12 10 11 7 20 25 38 10 12 6 38 7 20 9 38 13 15 9 37 5 12 336 8 8 Figure 80. Stacker Assembly - HP LaserJet Enterprise 500 | Maintenance Manual - Page 337
Item No. Part No. Description 1 170690-991 Field Kit, Stacker Advance Exchange Kit 5 202706-904PX Flanged Bearing 6 158342-001PX Paper Deflector 170719-001PX Paper Deflector 7 202721-901PX Clip-On Bearing 8 Ref Screw, Torx, 6-32 x .25 9 Ref Screw, Shoulder, 10-32 10 202716-001PX Timing - HP LaserJet Enterprise 500 | Maintenance Manual - Page 338
Appendix H Illustrated Parts Breakdown See page 340. % 48 47 15 51 See page ( 346. 40 50 46 45 46 45 45 46 52 65 $ From page 336. 15 See page 342. & 15 53 50 50 45 46 60 55 70 54 55 54 53 49 ' See page 344. 52 65 ' See page 344. Figure 81. Elevator Detail: Motor, Roller, and - HP LaserJet Enterprise 500 | Maintenance Manual - Page 339
, Drive Roller 49 202789-901PX Bearing, Flanged 50 202824-901PX Bearing 51 202708-001PX Collar Clamp 52 Ref Collar, Setscrew 53 156390-001PX Support Shaft 54 171209-001PX Fence, Wireform 55 203032-001PX Extension Spring 60 157275-001PX Idler Roller 65 157054-001PX Paddle, Power Stacker 70 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 340
Appendix H Illustrated Parts Breakdown From page 338. % 90 80 85 85 80 75 Figure 82. Stacker Detail: Rollers 340 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 341
Item No. Part No. Description 75 159425-001PX Compression Spring 80 156392-901PX Friction Washer 85 Ref Flanged Bushing 90 157960-001PX Drive Roller Notes On left end of shaft on early models Part of item 36 Part of item 36 Five on early models 341 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 342
Appendix H Illustrated Parts Breakdown From page 338. & 95 95 96 96 Flat Side 100 Flag Connector Key Figure 83. Stacker Detail: Motor Bracket 342 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 343
Item No. Part No. Description 95 Ref Clip-On Bearing 96 158288-001PX Holder, LED, Round 100 202727-001PX LED, IR, T-1, 3/4 Notes Part of item 36 343 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 344
Appendix H Illustrated Parts Breakdown From page 338. ' 105 Flag Connector Nib 95 Key 95 97 Figure 84. Stacker Detail: Elevator Bracket 344 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 345
Item No. Part No. Description 95 Ref Clip-On Bearing 97 158290-001PX Holder, LED, Flat 105 202728-001PX Photodarlington, NPN, Rectifier Notes Part of item 36 345 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 346
Appendix H Illustrated Parts Breakdown From page 338. ( Rotated 180 Degrees 105 Connector Flag Key Nib 105 97 97 110 107 107 106 107 115 108 116 T5stk01x Figure 85. Stacker Detail: Paper Motion Detector P5STK01Z 346 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 347
Item No. Part No. Description 97 158290-001PX Holder, LED, Flat 105 202728-001PX Photodarlington, NPN, Rectifier 106 Ref Retaining Ring, External, 0.093 inch 107 Ref Screw, Panhead, Type B, 2 x 3/16 108 Ref Shaft, Paper Detector Switch, Long 110 202729-001PX LED, IR, Rectangular 115 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 348
Appendix H Illustrated Parts Breakdown 348 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 349
FAIL*, 34 A A TO D OVERRUN*, 36 Abbreviations, 277, 285 About the printer, 9 ACCESS NULL PTR*, 35 Acronyms, 277, 285 Adjustments, 99 hammer phasing, 121 platen open belt, 104 platen open motor pulley alignment, 112 ribbon guide, 114 splined shaft skew adjustment, 116 Arrow keys pedestal models, 18 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 350
and cables, 233 Dipswitches 10/100Base-T, 146 Display (LCD) pedestal models, 18 Display messages printing conventions, 12 Documents related to this manual, 13 DOWN (arrow) key pedestal models, 18 Downloading software from multiple diskettes, 288 from one diskette, 285 DRVR CIR BAD*, 40 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 351
PROGRAM INTO FLASH, 48 M Magnetic pick-up assembly gap adjustment, 154 replacement, 154 Maintenance adjustments, 99 cleaning the printer, 25 overview, 9 preventive, 25 Manual how to use, 11 notes and notices, 11 printing conventions, 12 related documents, 13 Memory loading from multiple diskettes - HP LaserJet Enterprise 500 | Maintenance Manual - Page 352
display pedestal models, 18 Message Display (LCD) pedestal models, 18 Message List (troubleshooting), 33 Messages asterisk (*), what it means, 33 Mnemonics, 277, 285 Mode auto reset, 145 run, 145 Models, printer, 9 Motor paper feed drive, replacement, 158 platen open, replacement, 166 ribbon drive - HP LaserJet Enterprise 500 | Maintenance Manual - Page 353
regulatory, 269 troubleshooting, 31 PRINTER HOT, 55 Printing conventions in this manual, 12 line matrix printing explained, 215 problems, 31 Printouts , 171 ribbon guide assembly (L/R), 172 ribbon hub, 173 shuttle cover assembly, 141 shuttle frame assembly, 177 splined shaft, 174 support shaft, 176 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 354
drive motor, replacement, 171 guide assembly (L/R), replacement, 172 guide assembly, alignment, 114 hub, Test 10/100Base-T, 145 Self-tests diagnostic, printer, 84 operator print, 84 SENDING PROGRAM replacement, 174 splined, skew adjustment, 116 support, replacement, 176 SHIFT key pedestal models, - HP LaserJet Enterprise 500 | Maintenance Manual - Page 355
location of, 170 replacement, 169 Test equipment, tools, and supplies, 22 Tests print, operator, 84 printer, diagnostic, 84 Tools, test equipment, and supplies, 22 Tractor replacement, 182 Troubleshooting, 31 aids, 31 communications failures, 83 fault messages, 33 message list, 33 start here..., 32 - HP LaserJet Enterprise 500 | Maintenance Manual - Page 356
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/LQH-HW
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3ULQWHUV
Maintenance Manual