Lexmark X7500 Service Manual

Lexmark X7500 - MFP - Option Manual

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  • Lexmark X7500 | Service Manual - Page 1
    LexmarkTM X7500 4036-501 • Table of Contents • Start Diagnostics • Safety and Notices • Trademarks • Index • Manuals Menu Lexmark and Lexmark with diamond design are trademarks of Lexmark International, Inc., registered in the United States and/or other countries.
  • Lexmark X7500 | Service Manual - Page 2
    /or other countries. Other trademarks are the property of their respective owners. © Copyright Lexmark International, Inc. 2001. All rights reserved. UNITED STATES GOVERNMENT RESTRICTED RIGHTS This software and documentation are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the
  • Lexmark X7500 | Service Manual - Page 3
    Notices and Safety Information vii Safety Information iv-vii Preface x General Information 1-1 Maintenance Approach 1-1 Tools Required for Service 1-1 Acronyms 1-2 Preparing the scanner for shipping 1-3 Duplex Auto Document Feeder (DADF) Power Principles of Operation 1-4 DADF Control
  • Lexmark X7500 | Service Manual - Page 4
    Removal 4-42 DADF Gear #3 Bearing Removal 4-43 Tension Roller Spring and Tension Roller Removal 4-44 DADF Upper Paper Guide Removal 4-45 DADF #4 Gear Removal 4-46 Scanner Repair Procedures 4-48 User Interface Panel Removal 4-49 Flatbed Scanner Top Cover Assembly Removal 4-50 Flatbed Center
  • Lexmark X7500 | Service Manual - Page 5
    1234-XXX Preventive Maintenance 6-1 Maintaining Your Multifunction Product (MFP 6-1 CleaNing the touch screen 6-1 Cleaning the scanner bed 6-1 Cleaning the scanner rollers 6-1 Cleaning the scanner pick pads 6-3 Parts Catalog 7-1 How to Use This Parts Catalog 7-1 Assembly 1: DADF Cover and
  • Lexmark X7500 | Service Manual - Page 6
    1234-XXX vi
  • Lexmark X7500 | Service Manual - Page 7
    components. The safety features of some parts may not always be obvious. Lexmark is not responsible for the use of other replacement parts. • The maintenance information for this product has been prepared for use by a professional service person and is not intended to be used by others. • There may
  • Lexmark X7500 | Service Manual - Page 8
    nicht immer offensichtlich. Sofern Teile eingesetzt werden, die nicht von Lexmark sind, wird von Lexmark keinerlei Verantwortung oder Haftung für dieses Produkt übernommen. • Die profissionais destes serviços devem estar avisados deste facto e tomar os cuidados necessários. viii Service Manual
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    les estrictes normes de seguretat globals amb la utililització de components específics de Lexmark. Les característiques de seguretat d'algunes peces pot ser que no sempre siguin òbvies. Lexmark no es responsabilitza de l'us d'altres peces de recanvi. • La informació pel manteniment d'aquest
  • Lexmark X7500 | Service Manual - Page 10
    4036-501 Preface This manual describes the Lexmark X7500 Scanner (4036-501) and contains maintenance procedures for service personnel only. It is divided into the following chapters: 1. General Information contains a general description of the scanner and the maintenance approach used to repair it.
  • Lexmark X7500 | Service Manual - Page 11
    4036-501 1. General Information The Lexmark X7500 (4036-501) scanner option is a multifunction solution for the Lexmark W820 printer that adds copy, fax, and monochrome network scanning capabilities for increased corporate productivity. With the X7500 scanner option you can: • Copy: Up to 45 ppm,
  • Lexmark X7500 | Service Manual - Page 12
    CPU DADF DIMM E FTP GND HDD I/O JBIG JPEG KBS KL LDAP LVPS MFD MFP PDF PPM PWBA ROM S SE TIFF TTY UI VAC VDC Automatic Direction Finder Automatic Gain Control Abnormal Engineer Tagged Image File Format Teletypewriter User Interface Volts alternating current Volts direct current 1-2 Service Manual
  • Lexmark X7500 | Service Manual - Page 13
    numeric keypad: **411 2. After a short pause the service engineer (SE) menu is displayed. 3. Press 9 on the numeric keypad to select the scanner menu. 4. Press 1 to select the Carriage Lock Screen select the NVM Clear screen. 8. Press Start to clear NVM. The scanner resets. General Information 1-3
  • Lexmark X7500 | Service Manual - Page 14
    image processing board and onto the scanner through the 120 pin scanner cable. The voltage travels from the scanner cable into the scanner system board where it passes onto and compares it to timing tables stored in ROM. Acting on the results of the processing, the control card sends commands
  • Lexmark X7500 | Service Manual - Page 15
    4036-501 General Information 1-5
  • Lexmark X7500 | Service Manual - Page 16
    rotations. • Paper Present Sensor This sensor detects the paper loaded in the DADF. • Pick Up Sensor The sensor detects the existence of paper. This sensor utilizes a timing control of the paper conveyance as well as analyzes and recognizes the length of paper. 1-6 Service Manual
  • Lexmark X7500 | Service Manual - Page 17
    4036-501 • Registration Sensor This sensor detects top of paper. The sensor uses the on/off control of the large roll clutch to match up the timing of paper scanning with the timing of paper conveyance. • Exit/Reverse Sensor The sensor detects the paper passing it. This sensor also uses a timing
  • Lexmark X7500 | Service Manual - Page 18
    ). The further drive power is delivered to the gear of the exit/reverse roll through the belt (4 mm) when the exit/ reverse clutch is actuated. 1-8 Service Manual
  • Lexmark X7500 | Service Manual - Page 19
    4036-501 DADF Mechanical Drive Components The DADF mechanical drive is one major component, with numerous belts, pulleys, and clutches that transmit drive to the various DADF transport rolls. • DADF Registration Roll Drive Motor There is +24VDC
  • Lexmark X7500 | Service Manual - Page 20
    movement speed and fixing the cartridges of the scanner at the DADF position. The DADF also allows the scanner to scan page 2 of restarts toward the registration roll. • After passing on the DADF upper paper guide, the top of the paper reaches and actuates the paper present sensor of Service Manual
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    4036-501 2. Duplex Paper Path Note: The duplex paper path may be able to utilize two operational patterns due to its mechanical configuration design. Those patterns are described in this section. General Information 1-11
  • Lexmark X7500 | Service Manual - Page 22
    toward the registration roll. • After passing the DADF upper paper guide, the top of the paper reaches and actuates the paper present glass by rotation of the large roll. Utilizing the combined mechanism of the large roll rotation and the scanner full rate carriage, side 1 of the Service Manual
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    4036-501 General Information 1-13
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    platen glass. • The paper it is interrupted to synchronize the feed timing with the scanning timing of the scanner by the command signal sent from the DADF registration sensor card. • Paper is conveyed on to the platen when the end of the paper passes on the exit/reverse sensor. 1-14 Service Manual
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    4036-501 General Information 1-15
  • Lexmark X7500 | Service Manual - Page 26
    through the lower path. • Passing the exit/reverse sensor, paper discharges to the DADF output tray by the rotation of the exit/reverse roll. 1-16 Service Manual
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    4036-501 General Information 1-17
  • Lexmark X7500 | Service Manual - Page 28
    the exit/reverse roll. • The paper movement is interrupted for a specified time when the end of the paper passes to the exit/reverse sensor. 1-18 Service Manual
  • Lexmark X7500 | Service Manual - Page 29
    feed timing. • The paper moves toward the DADF platen glass. The paper is interrupted to synchronize the feed timing with the scanning timing of the scanner by the command signal sent from the DADF registration sensor card. • The paper moves to the platen glass by the rotation of the large roll
  • Lexmark X7500 | Service Manual - Page 30
    , the paper actuates the pre- registration sensor #2. Movement of the paper is then interrupted for a specific amount of time to synchronize paper feed timing. 1-20 Service Manual
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    4036-501 • The paper moves toward the DADF platen glass. The movement is interrupted for the specified time by the DADF registration sensor card in order to synchronize the paper feed timing with the scanning time. • The paper is restarted toward the platen glass by the rotation of the large roll.
  • Lexmark X7500 | Service Manual - Page 32
    pick roller assembly) The roll moves paper toward the feed roll utilizing a combination of mechanisms between the rotation of the roll and the roll moves paper, by its rotation, toward the platen glass of the scanner for scanning, and then moves toward the exit/reverse roll. • Exit/ Service Manual
  • Lexmark X7500 | Service Manual - Page 33
    board. The +5VDC and +24VDC voltages are sent through the image processing board and onto the scanner through the 120 pin scanner cable. The voltage travels from the scanner cable into the scanner system board where it uses these voltages to run internal logic sensors, clutches, and the main motor
  • Lexmark X7500 | Service Manual - Page 34
    card processes that information, shares it with the MFD controller cage, and compares it to timing tables stored in ROM. Acting on the results of the processing, the system card sends commands to the various scanner components; switching on/off the motor and exposure lamp. 1-24 Service Manual
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    4036-501 General Information 1-25
  • Lexmark X7500 | Service Manual - Page 36
    position. • Charged Couple Device (CCD) Card The card transmits video data read by the CCD card lens to the scanner system card. • PS-Lamp The lamp provides the electric power to light the exposure lamp. • Scanner Motor Card The card controls the rotation of the scanner motor. 1-26 Service Manual
  • Lexmark X7500 | Service Manual - Page 37
    4036-501 General Information 1-27
  • Lexmark X7500 | Service Manual - Page 38
    motor assembly and the action of the gears, belts, and pulley that are used to transmit and control drive to the various components throughout the scanner. The purpose of the drive is to provide energy for movement of the full and half rate carriages while maintaining the focus distance to the
  • Lexmark X7500 | Service Manual - Page 39
    provides the drive power to the timing pulley. • Timing Pulley A pulley which dampens rotational pulses from the scanner motor while providing rotational energy to the drive shaft assembly. • Scanner Cable Assemblies, Front And Rear Cables which move the full rate carriage by rotation of the drive
  • Lexmark X7500 | Service Manual - Page 40
    rate carriages are in a fixed position during this type of scan. Only the image projected through the left side DADF platen glass is obtained. 1-30 Service Manual
  • Lexmark X7500 | Service Manual - Page 41
    panel display. Refer to the printer's service manual for appropriate repair actions. The service error codes for the scanner system are divided into two main categories: Scanner errors and MFD errors. Scanner errors detected by the MFD controller card are displayed to the user interface panel. If an
  • Lexmark X7500 | Service Manual - Page 42
    , replace the lamp power inverter. Replace the flatbed lamp. If problem persists, replace the lamp power inverter. Replace the flatbed lamp. If problem persists, replace the lamp power inverter. Replace the flatbed lamp. If problem persists, replace the lamp power inverter. 2-2 Service Manual
  • Lexmark X7500 | Service Manual - Page 43
    the controller card in the MFD cage receives information from the scanner it doesn't expect. Turn off the power to the scanner system and restart. If the problem persists, replace the main scanner board in the flatbed scanner. If the problem continues, replace the image processor card in the MFD
  • Lexmark X7500 | Service Manual - Page 44
    electronic cards associated within the cage. All errors are posted to the user interface touch screen along with audible beep codes and LED codes ( failure Problem with TTY/ Serial Port. Replace the MFD controller board. Problem with the CPU Replace the MFD controller board. 2-4 Service Manual
  • Lexmark X7500 | Service Manual - Page 45
    are generated for this error. (Missing VM Linux) Note: Error code message not displayed on the user interface. Only beep code and LED patterns are generated for this error. Hard drive failure Scanner interface not found Scanner interface failed self-diagnostics Corrective action Check connections
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    scanner as necessary. 71 7 User interface failure A problem was detected with the user interface. Check the connection of the 120 pin scanner cable and user interface cables. If cables are okay, replace the user interface. If problem persists, replace MFD controller board. 2-6 Service Manual
  • Lexmark X7500 | Service Manual - Page 47
    the AC cable into power supply. Turn the power switch on. Connect the connector. Replace the power supply. Replace the failed power distribution board. If problem persists, replace MFD controller board. Note: *= check method explains how to check the failed item. T • he visual check can be made by
  • Lexmark X7500 | Service Manual - Page 48
    installed Motor assembly failure Gear failure Main drive motor assembly Dirt on carriage guides method Is the paper correctly set in the upper paper guide? Is the specified paper used? Visual check of Maintenance method Teach users to properly position the paper. None Re-install pick roller assembly
  • Lexmark X7500 | Service Manual - Page 49
    paper correctly set in the upper paper guide? Is the specified paper used? at the flatbed-toDADF interface? Maintenance method Teach users to properly position the paper. None Clean paper assembly. (See "Maintaining Your Multifunction Product (MFP)" on page 6-1 for more information. Clean or
  • Lexmark X7500 | Service Manual - Page 50
    motor Dynamic motor damper Check method Visual check. Visual check. Visual check. Maintenance method Connect the connector. Replace the motor. Replace the dynamic damper. 2-10 Service Manual
  • Lexmark X7500 | Service Manual - Page 51
    -501 Image does not appear Cause Relevant unit Check method Image processor board failure Lamp power invertor failure Lamp failure CCD board-scanner system board connection failure CCD board fails Image processor board Lamp power invertor Lamp None CCD board Visual check. Visual check. Visual
  • Lexmark X7500 | Service Manual - Page 52
    4036-501 2-12 Service Manual
  • Lexmark X7500 | Service Manual - Page 53
    4036-501 3. Diagnostic Aids The Lexmark X7500 does not have any onboard diagnostic aids available. Diagnostic Aids 3-1
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    4036-501 3-2 Service Manual
  • Lexmark X7500 | Service Manual - Page 55
    within the duplex automatic document feeder (DADF) and the scanner. Preparation Before you begin any removal and replacement procedure: 1. Switch off the power to the entire scanner system. 2. Disconnect the AC power cord from the electrical outlet. 3.
  • Lexmark X7500 | Service Manual - Page 56
    the Removal Replacement text Locations, such as R (right), assumes you are facing the scanner user interface panel. • Arrows in an illustration show direction of movement when removing a component. a plug and jack connection with the number being 'x.' • KL=clip • E=E-ring • S=screw 4-2 Service Manual
  • Lexmark X7500 | Service Manual - Page 57
    4036-501 Adjustments DADF Assembly Height Adjustment Adjusts the height of the counterbalance to ensure correct paper feeds. To ensure the adjustment is correct, make sure the two projections of the lower frame touch the DADF platen glass slightly when the DADF assembly is shut under its own weight.
  • Lexmark X7500 | Service Manual - Page 58
    4036-501 DADF Assembly Paper Skew Adjustment Moves the adjustment plate in direction A. Moves the adjustment plate in direction B. 4-4 Service Manual
  • Lexmark X7500 | Service Manual - Page 59
    4036-501 Adjusts the feeder which controls paper skew in the DADF assembly. Note: Attach the adjustment plate by fitting its projection into the center of the feeder. 1. Move registration rollers 1 and 2 parallel to each other. 2. Loosen the screws in the adjustment plate and move the plate in the
  • Lexmark X7500 | Service Manual - Page 60
    carriage until it rests against the right side frame. 5. Tighten the two (2) screws in the full rate carriage. 6. Mount the flatbed center platen glass plate. 4-6 Service Manual
  • Lexmark X7500 | Service Manual - Page 61
    4036-501 DADF Repair Procedures 4-7
  • Lexmark X7500 | Service Manual - Page 62
    card is installed for the Lexmark X7500 and X4500, a geography configuration must be performed in order for the fax modem to work properly. Once the card is installed, follow the instructions below to menu. 5. Select the appropriate geography from the list. 6. Reboot the system. 4-8 Service Manual
  • Lexmark X7500 | Service Manual - Page 63
    4036-501 DADF Repair Procedures DADF Assembly Removal 1. Remove the connector (P/J700), located at the rear side of the DADF assembly. 2. Open the DADF assembly. 3. Remove the two (2) thumbscrews. 4. Remove the black hinge loading plate from the right counterbalance. 5. Slide the DADF assembly
  • Lexmark X7500 | Service Manual - Page 64
    4036-501 Note: Follow the steps in the order shown to install the DADF. 4-10 Service Manual
  • Lexmark X7500 | Service Manual - Page 65
    4036-501 DADF Front Cover, Handle, and Magnet Removal 1. Remove the DADF top cover. See "DADF Top Cover Removal" on page 4-18 for more information. 2. Remove the two (2) screws in the DADF handle. Note: The left screw, in the DADF handle, is shorter. 3. Remove the DADF handle. 4. Remove the two (2)
  • Lexmark X7500 | Service Manual - Page 66
    4036-501 DADF Cushion Removal 1. Open the DADF Assembly. Note: The DADF cushion is stuck with two-sided tape. 2. After removing the DADF cushion, completely remove the two-sided tape remaining. 3. Remove the DADF cushion. 4-12 Service Manual
  • Lexmark X7500 | Service Manual - Page 67
    4036-501 To replace the DADF cushtion: 1. Lay the DADF cushion, with seals facing up, on the platen glass of the scanner. 2. Peel the seals and align the DADF cushion to the rear of the scanner. 3. Lower the DADF assembly and push against the DADF cushion. DADF Repair Procedures 4-13
  • Lexmark X7500 | Service Manual - Page 68
    Magnet Removal" on page 4-11 for more information. 3. Disconnect the two harnesses (P/J26). 4. Remove an E-ring. 5. Remove the screw. 6. Remove the exit/reverse solenoid. 4-14 Service Manual
  • Lexmark X7500 | Service Manual - Page 69
    4036-501 DADF Input Tray Assembly Removal 1. Remove the DADF top cover. See "DADF Top Cover Removal" on page 4-18 for more information. 2. Remove the DADF front cover. See "DADF Front Cover, Handle, and Magnet Removal" on page 4-11 for more information. 3. Disconnect connector (P/J30). 4. Unclamp
  • Lexmark X7500 | Service Manual - Page 70
    the screw from the jam access door assembly. 6. Push the door assembly toward the rear. 7. Raise the front side and pull out diagonally upward. 4-16 Service Manual
  • Lexmark X7500 | Service Manual - Page 71
    4036-501 8. Remove six (6) screws in the lower cover of the door assembly as shown. 9. Remove the lower cover of the door assembly along with the jam access door lever. When replacing the jam access door lever, align the key with the keyway in the lower cover as shown. DADF Repair Procedures 4-17
  • Lexmark X7500 | Service Manual - Page 72
    4036-501 DADF Top Cover Removal 1. Open the jam access door assembly. See "DADF Jam Access Door Assembly Removal" on page 4-16 for more information. 2. Remove four (4) screws in the DADF top cover. 3. Remove the top cover. 4-18 Service Manual
  • Lexmark X7500 | Service Manual - Page 73
    4036-501 DADF Rear Cover Removal 1. Remove the DADF top cover. See "DADF Top Cover Removal" on page 4-18 for more information. 2. Open the input tray cover assembly. See "DADF Input Tray Assembly Removal" on page 4-15 for more information. 3. Loosen the two (2) screws. 4. Remove the rear cover.
  • Lexmark X7500 | Service Manual - Page 74
    , and Magnet Removal" on page 4-11 for more information. 3. Disconnect (P/J32). 4. Unclamp the harness. 5. Remove the screw from the switch bracket. 6. Remove the switch. 4-20 Service Manual
  • Lexmark X7500 | Service Manual - Page 75
    4036-501 Mylar Paper Guide Strip Removal 1. Remove the DADF top cover. See "DADF Top Cover Removal" on page 4-18 for more information. bracket. 12. With the spring attached, rotate the paper stop and set aside. 13. Remove the mylar paper guide strip with a screwdriver. DADF Repair Procedures 4-21
  • Lexmark X7500 | Service Manual - Page 76
    Drive Motor Assembly Removal" on page 4-28 for more information. 5. Remove the two (2) screws in the DADF left hinge. 6. Remove the DADF left hinge. 4-22 Service Manual
  • Lexmark X7500 | Service Manual - Page 77
    4036-501 7. Place the DADF assembly upside down. 8. Remove four (4) screws in the DADF right hinge. 9. Remove the DADF right hinge. DADF Repair Procedures 4-23
  • Lexmark X7500 | Service Manual - Page 78
    remove the controller card from the bracket, remove the two (2) screws on each side of the connector. 13. Remove the DADF controller card assembly. 4-24 Service Manual
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    4036-501 DADF Repair Procedures 4-25
  • Lexmark X7500 | Service Manual - Page 80
    bearing from the registration roll drive motor assembly. 6. Raise the rear side of the roller engagement shaft assembly, and move it toward the left. 4-26 Service Manual
  • Lexmark X7500 | Service Manual - Page 81
    4036-501 7. Disconnect the sensor connector (P/J25). 8. Disconnect the motor connector (P/J27). 9. Disconnect the clutch connector (P/J18). 10. Release all harnesses from the clamps on the DADF registration roll drive motor assembly. 11. Remove three (3) screws from the DADF assembly to the DADF
  • Lexmark X7500 | Service Manual - Page 82
    ground wire. 12. Remove the screw (right side) from the ground wire. 13. Remove five (5) screws from the DADF assembly. 14. Remove the assembly. 4-28 Service Manual
  • Lexmark X7500 | Service Manual - Page 83
    4036-501 When replacing the assembly: 1. Leave the drive motor belt off the gear until the bearing mates with the hole in the frame. 2. Make sure the tension roller contacts the outside of the DADF main drive motor belt. 3. Mesh the teeth of the belt with the gear, and rotate the knob of the DADF
  • Lexmark X7500 | Service Manual - Page 84
    4036-501 DADF Separator Pad Assembly Removal 1. Open the input tray assembly. 2. Remove the two (2) screws from the separator pad assembly. 3. Pull out the assembly. 4-30 Service Manual
  • Lexmark X7500 | Service Manual - Page 85
    4036-501 DADF Separator Pad Removal 1. Open the input tray cover. See "DADF Input Tray Assembly Removal" on page 4-15 for more information. 2. Remove the two (2) screws from the assembly. 3. Slide the assembly to the right and out of the DADF assembly. 4. Remove the screw and slide the separator
  • Lexmark X7500 | Service Manual - Page 86
    more information. 3. Remove an E-ring from the DADF #1 linkage. 4. Pull out the linkage. 5. Remove an E-ring from the DADF #2 linkage. 6. Pull out the linkage. 4-32 Service Manual
  • Lexmark X7500 | Service Manual - Page 87
    4036-501 Linkage Cover Removal 1. Remove the DADF top cover. See "DADF Top Cover Removal" on page 4-18 for more information. 2. Remove the DADF front cover. See "DADF Front Cover, Handle, and Magnet Removal" on page 4-11 for more information. 3. Remove the screw from the frame. 4. Remove the cover.
  • Lexmark X7500 | Service Manual - Page 88
    both lower ends. 6. Remove the spring. 7. Fold the DADF input tray assembly up. 8. Remove the E-ring from the rear shaft of the paper stopper. 4-34 Service Manual
  • Lexmark X7500 | Service Manual - Page 89
    4036-501 9. Slide the paper stop toward the rear until the front shaft of the stop is released from the bearing. 10. Pull the paper stop out diagonally. DADF Repair Procedures 4-35
  • Lexmark X7500 | Service Manual - Page 90
    shaft assembly to the bearing. 6. Slide the bearings on both sides of the shaft assembly toward the inside to release. 7. Remove the shaft assembly. 4-36 Service Manual
  • Lexmark X7500 | Service Manual - Page 91
    4036-501 When replacing the shaft assembly, ensure it is oriented correctly. DADF Repair Procedures 4-37
  • Lexmark X7500 | Service Manual - Page 92
    information. 2. Remove the screw from the DADF paper present sensor card and mylar cover. 3. Disconnect the paper present sensor connector (P/J15). 4. Remove the sensor. 4-38 Service Manual
  • Lexmark X7500 | Service Manual - Page 93
    4036-501 DADF Paper Present Indicator Card Assembly Removal 1. Remove the DADF top cover. See "DADF Top Cover Removal" on page 4-18 for more information. 2. Disconnect the connector (P/J29) from the DADF paper present indicator card. 3. Remove the screw. 4. Remove the indicator card. DADF Repair
  • Lexmark X7500 | Service Manual - Page 94
    KL clip from the paper present sensor flag. 4. Raise the input tray assembly to 90° angle. 5. Slide the sensor toward the rear to remove. 4-40 Service Manual
  • Lexmark X7500 | Service Manual - Page 95
    4036-501 DADF Pick Roller with Separator Pad Kit Assembly Removal 1. Remove the DADF top cover. See "DADF Top Cover Removal" on page 4-18 for more information. Note: Ensure the roller engagement shaft assembly pins are in the up position. 2. Remove two (2) KL clips from the shaft of the pick roller
  • Lexmark X7500 | Service Manual - Page 96
    registration sensor. 5. Release the harness from the three (3) clamps. 6. Remove the screw from the bracket. 7. Remove the bracket together with the DADF registration sensor. 4-42 Service Manual
  • Lexmark X7500 | Service Manual - Page 97
    , 6. Remove the screw and a toothed washer from the DADF #3 gear. 7. Pull the gear off the shaft. 8. Pull the bearing off the shaft. DADF Repair Procedures 4-43
  • Lexmark X7500 | Service Manual - Page 98
    page 4-19 for more information. 3. Unhook the tension roller spring. 4. Remove the spring. 5. Remove the two (2) screws from the tension roller. 6. Remove the roller. 4-44 Service Manual
  • Lexmark X7500 | Service Manual - Page 99
    . See "DADF Jam Access Door Assembly Removal" on page 4-16 for more information. 2. Open the DADF upper paper guide to a 90° angle. 3. Pull the front hook of the paper guide out of the stud. 4. Slide the rear hook of the paper guide, and pull it out of the stud. DADF Repair Procedures 4-45
  • Lexmark X7500 | Service Manual - Page 100
    See "DADF Top Cover Removal" on page 4-18 for more information. 2. Open the DADF upper paper guide. See "DADF Upper Paper Guide Removal" on page 4-45 for more information. 3. Remove the screw from the plate to the DADF of the DADF assembly between the bearing and the gear. 4-46 Service Manual
  • Lexmark X7500 | Service Manual - Page 101
    4036-501 8. Remove the KL clip from the roller. 9. Slide the lower roller toward the front. 10. Remove the roller along with the bearing. Note: Pass through an opening on the rear side of the DADF assembly between the bearing and the gear. 11. Remove the main drive motor assembly. 12. Remove the
  • Lexmark X7500 | Service Manual - Page 102
    4036-501 Scanner Repair Procedures This section contains the removal and replacement procedures for major parts within the printer Scanner. Warning: The scanner contains a number of screws painted red. Do not loosen or remove. 4-48 Service Manual
  • Lexmark X7500 | Service Manual - Page 103
    Panel Removal CAUTION: Ensure the scanner power is off before the user interface panel is removed. The back light of the touch screen is powered with high voltage and could harm a servicer, if touched. Warning: Ensure that all external devices are powered off and unplugged from wall outlets
  • Lexmark X7500 | Service Manual - Page 104
    4036-501 Flatbed Scanner Top Cover Assembly Removal 1. Remove the DADF assembly. See "DADF Assembly Removal" on page 4-9 for more information. 2. Remove the user interface panel. See "User Interface Panel Removal" on : Take care not to damage the flatbed open sensor assembly. 4-50 Service Manual
  • Lexmark X7500 | Service Manual - Page 105
    4036-501 DADF Repair Procedures 4-51
  • Lexmark X7500 | Service Manual - Page 106
    4036-501 Flatbed Center Platen Glass Plate Removal 1. Remove the two (2) screws. 2. Remove the right side plate. 3. Remove the flatbed center platen glass plate. 4-52 Service Manual
  • Lexmark X7500 | Service Manual - Page 107
    4036-501 When replacing the flatbed center platen glass plate: • Push the flatbed center platen glass plate in the arrow A direction. • Push the right plate in the arrow B direction. DADF Repair Procedures 4-53
  • Lexmark X7500 | Service Manual - Page 108
    information. 2. Remove the user interface panel. See "User Interface Panel Removal" on page 4-49 for more information. 3. Remove the flatbed scanner top cover assembly. See "Flatbed Scanner Top Cover Assembly Removal" on the glass is positioned toward the rear of the scanner. 4-54 Service Manual
  • Lexmark X7500 | Service Manual - Page 109
    See "DADF Assembly Removal" on page 4-9 for more information. 2. Remove the user interface panel. See "User Interface Panel Removal" on page 4-49 for more information. 3. Remove the flatbed scanner top cover assembly. See "Flatbed Scanner Top Cover Assembly Removal" on page 4-50 for more information
  • Lexmark X7500 | Service Manual - Page 110
    Flatbed Scanner Top Cover Assembly Removal" on page 4-50 for more information. 4. Release the harness from the clamp on the scanner motor card. 5. Disconnect P/J749 and P/J748. 6. Remove the screw in the scanner motor card. 7. Remove the card assembly by shifting it to the rear. 4-56 Service Manual
  • Lexmark X7500 | Service Manual - Page 111
    See "DADF Assembly Removal" on page 4-9 for more information. 2. Remove the user interface panel. See "User Interface Panel Removal" on page 4-49 for more information. 3. Remove the flatbed scanner top cover assembly. See "Flatbed Scanner Top Cover Assembly Removal" on page 4-50 for more information
  • Lexmark X7500 | Service Manual - Page 112
    Scanner Top Cover Assembly Removal" on page 4-50 for more information. 4. Shift the full rate carriage away from the registration sensor by rotating the timing pulley. 5. Disconnect P/J745. 6. Remove the screw from the bracket. 7. Remove the registration sensor assembly. 4-58 Service Manual
  • Lexmark X7500 | Service Manual - Page 113
    See "DADF Assembly Removal" on page 4-9 for more information. 2. Remove the user interface panel. See "User Interface Panel Removal" on page 4-49 for more information. 3. Remove the flatbed scanner top cover assembly. See "Flatbed Scanner Top Cover Assembly Removal" on page 4-50 for more information
  • Lexmark X7500 | Service Manual - Page 114
    1. Remove the flatbed center platen glass plate. See "Flatbed Center Platen Glass Plate Removal" on page 4-52 for more information. Warning: The scanner contains a number of screws painted red. Do not loosen or remove. 2. Disconnect the P/J730 and P/J736. 3. Remove the three (3) screws. 4-60
  • Lexmark X7500 | Service Manual - Page 115
    4036-501 4. Move the full rate carriage to the left side of the scanner. 5. Remove the six (6) screws. 6. Remove the cover. 7. Disconnect the P/J731, P/J732, P/J733, P/J734, and P/J735. 8. Remove 5 screws. 9. 10.Remove the scanner system card. DADF Repair Procedures 4-61
  • Lexmark X7500 | Service Manual - Page 116
    Removal 1. Remove the flatbed center platen glass plate. See "Flatbed Center Platen Glass Plate Removal" on page 4-52 for more information. Warning: The scanner contains a number of screws painted red. Do not loosen or remove. 2. Remove the two (2) screws from the cover. 3. Remove the cover. 4-62
  • Lexmark X7500 | Service Manual - Page 117
    4036-501 4. Disconnect the CCD card lens and the charge couple device card. 5. Remove the two (2) screws. 6. Remove the charge couple device card. DADF Repair Procedures 4-63
  • Lexmark X7500 | Service Manual - Page 118
    Removal 1. Remove the flatbed center platen glass plate. See "Flatbed Center Platen Glass Plate Removal" on page 4-52 for more information. Warning: The scanner contains a number of screws painted red. Do not loosen or remove. 2. Mark the position of the screws from the automatic paper size sensor
  • Lexmark X7500 | Service Manual - Page 119
    Removal 1. Remove the flatbed center platen glass plate. See "Flatbed Center Platen Glass Plate Removal" on page 4-52 for more information. Warning: The scanner contains a number of screws painted red. Do not loosen or remove. 2. Slide the full rate carriage lamp assembly to the cutout in the frame
  • Lexmark X7500 | Service Manual - Page 120
    4036-501 Cable Assembly-Scan, Rear Removal 1. Remove the DADF assembly. 2. Remove the user interface. 3. Remove the flatbed center platen glass plate. 4. Remove the cover assembly. 5. Remove the DADF , rear. 8. Remove the spring-exit. 9. Remove the cable assembly-scan, rear. 4-66 Service Manual
  • Lexmark X7500 | Service Manual - Page 121
    4036-501 In replacing the cable assembly, scan, rear: Note: The replacement procedures for the cable assembly-scan is similar on the front side and the rear side. Therefore, only the rear side replacement is mentioned. Perform replacement on the front side in the same manner. Note: Replace the cable
  • Lexmark X7500 | Service Manual - Page 122
    to the frame with gum tape. 14. Wind the ball side of the cable assembly-scan, rear around the pulley-capstan, rear by 2 turns. 4-68 Service Manual
  • Lexmark X7500 | Service Manual - Page 123
    4036-501 15. Fasten the cable assembly-scan, rear wound to the pulley-capstan, rear with a gum tape. 16. Engage the spring-exit and the cable assembly-scan, rear to the pulley on the left side of the half rate carriage. 17. Insert a ball of the cable assembly-scan, rear into a notch of the frame.
  • Lexmark X7500 | Service Manual - Page 124
    for smooth motion. 25. Mount the DADF platen glass. 26. Mount the cover assembly. 27. Mount the flatbed center platen glass plate. 28. Mount the user interface. 29. Mount the DADF assembly. 4-70 Service Manual
  • Lexmark X7500 | Service Manual - Page 125
    4-52 for more information. 2. Remove the two (2) screws that secure the full rate carriage. 3. Reverse the full rate carriage. 4. Remove the screw, and then the guide. DADF Repair Procedures 4-71
  • Lexmark X7500 | Service Manual - Page 126
    4036-501 5. Remove the full rate carriage lamp cable. 6. Disconnect the P742 and P733. 7. Remove the full rate carriage lamp cable. 4-72 Service Manual
  • Lexmark X7500 | Service Manual - Page 127
    4036-501 5. Connector Locations Use the table and maps in this section to locate specific P/J connectors within the scanner. To find the location of a P/J: 1. Locate the P/J connector number in the first column of the table. 2. Locate the corresponding map and location number, such as
  • Lexmark X7500 | Service Manual - Page 128
    4036-501 Location Maps P/J Connected to... P/J2 P/J3 P/J4 P/J5 P/J6 DADF controller card assembly DADF controller card assembly DADF controller card assembly Test tool (unpacking) DADF controller card assembly 5-2 Service Manual Other end connected to...
  • Lexmark X7500 | Service Manual - Page 129
    4036-501 P/J Connected to... P/J7 P/J8 P/J9 P/J11 P/J12 P/J13 P/J14 P/J15 P/J16 P/J17 P/J18 P/J19 P/J20 P/J22 P/J23 P/J24 P/J25 P/J26 P/J27 P/J28 P/J29 P/J30 P/J31 P/J32 P/J33 P/J35 P/J700 DADF controller card assembly DADF controller card assembly DADF controller card assembly PWBA size DADF
  • Lexmark X7500 | Service Manual - Page 130
    4036-501 5-4 Service Manual
  • Lexmark X7500 | Service Manual - Page 131
    J732 P/J733 P/J734 P/J735 P/J737 P/J744 P/J745 P/J747 User interface Scanner system board Scanner system card assembly, LMK SCANNER system card assembly, LMK SCANNER system card assembly, LMK Scanner system card assembly, LMK scanner system card assembly, LMK Sensor, paper position Sensor assembly
  • Lexmark X7500 | Service Manual - Page 132
    4036-501 5-6 Service Manual
  • Lexmark X7500 | Service Manual - Page 133
    4036-501 P/J Connected to... P/J730 P/J736 P/J742 P/J743 P/J746 P/J748 P/J749 P/J751 Scanner system board Scanner system board Power supply-lamp Power supply-lamp Sensor assembly-platen PWB assembly-scan PWB assembly-scan PWB assembly-F, Dual Other end connected to... P/J700
  • Lexmark X7500 | Service Manual - Page 134
    Scanner Module. Each wire in the diagrams is tagged with a signal name, and each wire is terminated at both ends with a pin number. Wiring Diagram Notations The wiring diagrams in this manual use the following circuit notations to describe components and signal paths within the printer Service Manual
  • Lexmark X7500 | Service Manual - Page 135
    4036-501 DADF Master Wiring Diagram Connector Locations 5-9
  • Lexmark X7500 | Service Manual - Page 136
    loaded. Supplies the power through the current limiter to light the LED of the DADF LED PWD. Whenever the LED lights, this turns on. 5-10 Service Manual
  • Lexmark X7500 | Service Manual - Page 137
    4036-501 DADF Controller Card Assembly ↔ DADF Jam Cover Open Switch Signal name IL24V Description Supplies 24V through the jam door open switch (24V through the interlock switch). Connector Locations 5-11
  • Lexmark X7500 | Service Manual - Page 138
    Description LED return of the PWBA tray sensor. Monitor the level of paper. Sensor output >Threshold: paper present. Sensor output < Threshold: Paper not present. 5-12 Service Manual
  • Lexmark X7500 | Service Manual - Page 139
    of the stamp. Control logic: 0V=On 24V=OffÅ@ Detection logic (effective when the control logic is off.) 0V=the stamp is not installed. Å@24V=The stamp is installed. Supplies 24V through the DADF top cover open switch (24V through the interlock switch). Controls the drive power transmission of the DC
  • Lexmark X7500 | Service Manual - Page 140
    4036-501 DADF Controller Card Assembly ↔ DADF Reverse Sensor 5-14 Service Manual
  • Lexmark X7500 | Service Manual - Page 141
    4036-501 The following table shows the signal names for this board. Signal name *HAIHAN K *HAIHAN *REGI2 REGI2 A *REGI1 K *REGI1 *READ *READ K *KMOT CK Description LED return of the DADF exit/reverse sensor. Detects whether paper exists or not. Sensor output < Threshold: paper exists. Sensor
  • Lexmark X7500 | Service Manual - Page 142
    of the counterclockwise rotation. Pulse that controls motor rotation. Pulse that controls motor rotation. Pulse that controls motor rotation. Pulse that controls motor rotation. 5-16 Service Manual
  • Lexmark X7500 | Service Manual - Page 143
    4036-501 Scanner Master Wiring Diagram Connector Locations 5-17
  • Lexmark X7500 | Service Manual - Page 144
    4036-501 Scanner System Card IPS LX ↔ CCD PWBA ↔ CCD SNR The following table shows signal to operate the CCD. Clock 1 signal to operate the CCD. Clock 2 signal to operate the CCD. Reset signal to operate the CCD. EVEN signal from the CCD sub-output. ODD signal from the CCD sub-output. EVEN
  • Lexmark X7500 | Service Manual - Page 145
    4036-501 Scanner System Card LX ↔ Lamp Invertor Power Supply Signal name LAMP$ON Description Controls on/off of the lamp. Connector Locations 5-19
  • Lexmark X7500 | Service Manual - Page 146
    4036-501 Scanner System Card IPS ↔ Size Detect Signal Name DOC#SIZE1 DOC#SIZE 2 PLT#INT REGI#SNR PLT#AGL Description Detects the long edge of plate. Detects on/off of the platen. Detects the home positions of the carriage assembly -F and -R. Detects open/close of the DADF. 5-20 Service Manual
  • Lexmark X7500 | Service Manual - Page 147
    4036-501 Scanner System Card IPS ↔ Scan Drive ↔ IIT Motor Signal Name MBN MB MAN MA SMOT$CLK SMOT$PWD N SMOT$PWU P SMOT$ drive direction of the scan motor. High= reverse. Low= forward. Switches the scan motor on and off. 5V= Stop. 0V= Drive. Resets the energizing sequence. Connector Locations 5-21
  • Lexmark X7500 | Service Manual - Page 148
    4036-501 Scanner System Card IPS ↔ Control Panel (LCD) 5-22 Service Manual
  • Lexmark X7500 | Service Manual - Page 149
    SPARE1+ SPARE1- SPARE2+ SPARE2- User interface STS+ User interface STS- User interface CMD- User interface CMD+ User interface RESET- User interface RESET+ User interface communication signal + (spare 1) User interface communication signal - (spare 1) User interface communication signal + (spare
  • Lexmark X7500 | Service Manual - Page 150
    4036-501 Scanner System Card IPS ↔ Flash ROM (1/2) 5-24 Service Manual
  • Lexmark X7500 | Service Manual - Page 151
    1 CPU data bus 2 CPU data bus 3 CPU data bus 4 CPU data bus 5 CPU data bus 6 CPU data bus 7 CPU address bus 0 ROM chip selection Creation kit chip selection Flash ROM attachment signal Read signal from the CPU Write signal from the CPU Interruption signal to the creation kit CPU address bus 1 CPU
  • Lexmark X7500 | Service Manual - Page 152
    4036-501 Scanner System Card IPS ↔ Flash ROM (2/2) 5-26 Service Manual
  • Lexmark X7500 | Service Manual - Page 153
    14 CPU address bus 15 CPU address bus 16 CPU address bus 17 Creation kit status signal + Flash ROM switching signal between 8 bits and 16 bits Flash ROM busy signal Flash ROM reset signal Creation kit status signal Creation kit command signal + Creation kit command signal - Connector Locations 5-27
  • Lexmark X7500 | Service Manual - Page 154
    4036-501 Scanner System Card IPS ↔ DADF 5-28 Service Manual
  • Lexmark X7500 | Service Manual - Page 155
    4036-501 Signal Name CMD+ CMDSTA+ STASCAN#RDY SCAN#STA RT DADF#ATC Description DADF command signal + DADF command signal DADF status signal + DADF status signal DADF ready of scan signal DADF start of scan signal DADF attachment signal Connector Locations 5-29
  • Lexmark X7500 | Service Manual - Page 156
    4036-501 Scanner System Card IPS ↔ MFD (1/4) 5-30 Service Manual
  • Lexmark X7500 | Service Manual - Page 157
    + (user interface status) User interface communication signal (user interface status) User interface communication signal + (spare 1) User interface communication signal (spare 1) User interface communication signal + (user interface reset) User interface communication signal (user interface reset
  • Lexmark X7500 | Service Manual - Page 158
    data 3- IIT scanning video data 4+ IIT scanning video data 4- User interface communication single + (user interface command) User interface communication single (user interface command) User interface communication single + (spare 2) User interface communication single (spare 2) 5-32 Service Manual
  • Lexmark X7500 | Service Manual - Page 159
    4036-501 Scanner System Card IPS ↔ MFD (2/4) Signal name SCNVD5+ SCNVD5SCNVD6+ SCNVD6SCNVD7+ SCNVD7SCANSTRT+ SCANSTRTSCANRDY+ SCANRDY- Description IIT scanning video data 5+ IIT scanning video data 5IIT scanning video data 6+
  • Lexmark X7500 | Service Manual - Page 160
    4036-501 Scanner System Card IPS ↔ MFD (3/4) 5-34 Service Manual
  • Lexmark X7500 | Service Manual - Page 161
    4036-501 Scanner System Card IPS ↔ MFD (4/4) Connector Locations 5-35
  • Lexmark X7500 | Service Manual - Page 162
    4036-501 External Low Voltage Power Supply Pin Wire color 1 Black 2 Black 3 Black 4 Black 5 Black 6 Black 7 White 8 Red 9 Yellow 10 Red 11 Red 12 Red Voltage GND GND GND GND GND GND +24V dc +5V dc +12V dc +5V dc +5V dc +5V dc 5-36 Service Manual
  • Lexmark X7500 | Service Manual - Page 163
    Dampen a clean, lint-free cotton cloth with water. 2. Open the cover. Wipe the scanner bed glass. Cleaning the scanner rollers Clean the rollers if documents do not feed smoothly or easily, or if several documents feed at one time. The rollers may be contaminated with ink, toner particles, or paper
  • Lexmark X7500 | Service Manual - Page 164
    entire roller is cleaned. 5. Lift the paper guide. 6. Rotate the three sets of feeding rollers forward with your finger and wipe each one with the cloth until the entire roller is cleaned. 7. Lower the paper guide and the ADF cover. 8. Plug in the control unit and turn it on. 6-2 Service Manual
  • Lexmark X7500 | Service Manual - Page 165
    4036-501 Cleaning the scanner pick pads 1. Lift the input tray. 2. Remove the two screws. 3. Lower the roller plate and pull it straight out. 4. Dampen a clean, lint-free cotton cloth with water. 5. Wipe the two pick pads. Preventive Maintenance 6-3
  • Lexmark X7500 | Service Manual - Page 166
    left groove. 8. Tilt the roller plate up and slanted slightly down on the right side. 9. Slide the plate back until it snaps into place. 10. Install the two screws to secure the plate. For instructions on maintaining the printer, refer to the printer publications CD. 6-4 Service Manual
  • Lexmark X7500 | Service Manual - Page 167
    of identical parts, they are shown on the same list. Parts peculiar to one or the other of the assemblies are listed separately and identified by description. • a FRU assembly, refer to the Lexmark W820 printer parts catalog for a screw parts pack, clamp kit pack or E clip kit pack. Parts
  • Lexmark X7500 | Service Manual - Page 168
    4036-501 Assembly 1: DADF Cover and Solenoid 7-2 Service Manual
  • Lexmark X7500 | Service Manual - Page 169
    4036-501 Assembly 1: Ref Part number Units Description 1 12G6841 1 Cover, DADF Front 2 12G6842 1 Handle, DADF 3 12G6843 1 Cushion, DADF 4 12G6844 1 Magnet, DADF 5 12G6845 1 Solenoid, DADF Exit/Reverse Parts Catalog 7-3
  • Lexmark X7500 | Service Manual - Page 170
    4036-501 Assembly 2: DADF Cover, Switch, and Hinge (Rear) 7-4 Service Manual
  • Lexmark X7500 | Service Manual - Page 171
    5 12G6851 1 Plate, Lever 6A 12G6852 1 Actuator, Jam Door Open Switch 6B 12G6853 1 Switch, Jam Door Open 7 12G6854 1 Strip, Mylar Paper Guide 8 12G4191 1 DADF Thumbscrew 9 12G6856 1 Hinge, Left DADF 10 12G6858 1 Plate, Hinge Loading 11 12G6857 1 Hinge, Right DADF 12 12G6859
  • Lexmark X7500 | Service Manual - Page 172
    4036-501 Assembly 3: DADF Control Board and DADF Registration Roll Drive Motor Assembly 7-6 Service Manual
  • Lexmark X7500 | Service Manual - Page 173
    1 12G6864 1 Motor Assembly, DADF Registration Roll Drive 2 12G6865 1 Motor Assembly, DADF Main Drive 3 12G9058 1 Gear, DADF #2B 4 12G6863 1 Gear, DADF #2 5 12G6862 1 Gear, DADF #1 6 12G6861 1 Cable, Scanner to DADF 7 12G6860 1 Card Assembly, DADF Controller Parts Catalog 7-7
  • Lexmark X7500 | Service Manual - Page 174
    4036-501 Assembly 4: DADF Separator Pad Asm. and Paper Stop 7-8 Service Manual
  • Lexmark X7500 | Service Manual - Page 175
    4036-501 Assembly 4: Ref Part number Units Description 1 12G6866 1 Pad Assembly, DADF Separator 2 12G6867 1 Pad, DADF Individual Separator 3 12G6868 1 Linkage, DADF #1 4 12G6869 1 Linkage, DADF #2 5 12G6870 1 Cover, DADF Linkage 6 12G6872 1 Spring, Paper Stop 7 12G6871 1
  • Lexmark X7500 | Service Manual - Page 176
    4036-501 Assembly 5: DADF Pick Roller 7-10 Service Manual
  • Lexmark X7500 | Service Manual - Page 177
    4036-501 Assembly 5: Ref Part number Units Description 1 12G6878 1 Kit Assembly, DADF Pick Roller with Separator Pad 2 12G6877 1 Flag, Paper Present Sensor 3 12G6876 1 Sensor, DADF Paper Present 4 12G6875 1 Card Assembly, Paper Present Indicator 5 12G6874 1 Sensor, Pre
  • Lexmark X7500 | Service Manual - Page 178
    4036-501 Assembly 6: DADF Document Registration 7-12 Service Manual
  • Lexmark X7500 | Service Manual - Page 179
    4036-501 Assembly 6: Ref Part number Units Description 1 12G6879 1 Guide, DADF Upper Paper 2 12G6883 2 Bearing, Roller Shaft 3 12G6880 1 Sensor, Registration 4 12G6881 1 Spring, Tension Roller 5 12G6882 1 Roller, Tension 6 12G6884 1 Gear, DADF #3 7 12G6885 1 Gear, DADF #4
  • Lexmark X7500 | Service Manual - Page 180
    4036-501 Assembly 7: DADF Wiring Harness 7-14 Service Manual
  • Lexmark X7500 | Service Manual - Page 181
    4036-501 Assembly 7: Ref Part number Units Description 1 12G6896 1 (J16, J30) Wiring Harness 2 12G6893 1 (J7, J26, J27, J28) Wiring Harness 3 12G6889 1 (J11, J13) Wiring Harness 4 12G6888 1 (J14, J22, J23) Wiring Harness 5 12G6894 1 (J33, J35) Wiring Harness 6 12G6890 1 (J4,
  • Lexmark X7500 | Service Manual - Page 182
    4036-501 Assembly 8: Scanner Platen Glass and IPS PWB 7-16 Service Manual
  • Lexmark X7500 | Service Manual - Page 183
    Part number Units Description 1 12G6807 1 Plate, Flatbed Center Platen Glass 2 12G6808 1 Plate, Right 3 12G6809 1 Card Assembly, Scanner Motor 4 12G6810 1 Switch Assembly, Plate 5 12G6811 1 Sensor Assembly, Registration 6 12G6812 1 Sensor Assembly, Flatbed Open 7 12G6813 1 Card
  • Lexmark X7500 | Service Manual - Page 184
    4036-501 Assembly 9: Scanner Lens Assembly and CCD Card 7-18 Service Manual
  • Lexmark X7500 | Service Manual - Page 185
    4036-501 Assembly 9: Ref Part number Units Description 1 12G6819 1 Lens, CCD Card 2 12G6816 1 Card Assembly, Charged Couple Device 3 12G6817 1 Cable, CCD 4 12G6818 1 Sensor, Automatic Paper Size (APS) Parts Catalog 7-19
  • Lexmark X7500 | Service Manual - Page 186
    4036-501 Assembly 10: Scanner Carriage Motor and Cable 7-20 Service Manual
  • Lexmark X7500 | Service Manual - Page 187
    4036-501 Assembly 10: Ref Part number Units Description 1 12G6829 1 Spring, Motor 2 12G6828 1 Motor Assembly, Main Drive 3 12G6824 1 Damper, Dynamic Motor 4 12G6827 1 Belt, Main Drive 5 12G6826 2 Bearing, Pulley Shaft 6 12G6830 4 Foot, Scanner Base Parts Catalog 7-21
  • Lexmark X7500 | Service Manual - Page 188
    4036-501 Assembly 11: Scanner Full Rate and Half Rate Carriage 7-22 Service Manual
  • Lexmark X7500 | Service Manual - Page 189
    4036-501 Assembly 11: Ref Part number Units Description 1 12G6834 1 Lamp Assembly, Full Rate Carriage 2 12G6835 1 Cable, Full Rate Carriage Lamp 3 12G6833 1 Power Invertor, Lamp 4 12G6886 3 Mirror Parts Catalog 7-23
  • Lexmark X7500 | Service Manual - Page 190
    4036-501 Assembly 12: Scanner Top Cover 7-24 Service Manual
  • Lexmark X7500 | Service Manual - Page 191
    4036-501 Assembly 12: Ref Part number Units Description 1 12G6839 1 Panel Assembly, User Interface 2 12G9080 1 Cover, User Interface Extension 3 12G6837 1 Main Scanner Wiring Harness, (J731J390, J734J744/J745/J746/P747, J735J748) 4 12G6840 1 Cover, Under Top Cover 5 12G6838
  • Lexmark X7500 | Service Manual - Page 192
    4036-501 Assembly 13: Multifunction Device Controller Cage Electronics 7-26 Service Manual
  • Lexmark X7500 | Service Manual - Page 193
    12G6912 1 Cable, HDD to Controller-4 Pin 4 12G6898 1 Drive Assembly, Hard Disk 5 12G6911 1 Cable, HDD to Controller-40 Pin 6 12G9063 1 (Lexmark W820 printer - 4025) N/S 12G4369 1 Parts Pack, E-Clip Kit (Lexmark W820 printer - 4025) N/S 12G4375 1 Parts Pack, Screw (Lexmark W820 printer
  • Lexmark X7500 | Service Manual - Page 194
    4036-501 7-28 Service Manual
  • Lexmark X7500 | Service Manual - Page 195
    Scanner Master Wiring Diagram 5-17 M Maintaining Your MFP 6-1 Cleaning The Scanner Bed 6-1 Cleaning The Scanner Pick Pads 6-3 Cleaning The Scanner Gear #3 Bearing 4-43 DADF Input Tray Scanner Main Drive Motor Assembly 4-55 Scanner Motor Card Assembly 4-56 Scanner System Card Assembly 4-60 User
  • Lexmark X7500 | Service Manual - Page 196
    7-5 12G6851 7-5 12G6852 7-5 12G6853 7-5 12G6854 7-5 12G6856 7-5 12G6857 7-5 12G6858 7-5 12G6859 7-5 12G6860 7-7 12G6861 7-7 12G6862 7-7 12G6863 7-7 I-2 Service Manual 4036-501 12G6864 7-7 12G6865 7-7 12G6866 7-9 12G6867 7-9 12G6868 7-9 12G6869 7-9 12G6870 7-9 12G6871 7-9 12G6872 7-9 12G6873 7-11
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Lexmark
TM
X7500
4036-501
• Table of Contents
• Start Diagnostics
• Safety and Notices
• Trademarks
• Index
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Lexmark and Lexmark with diamond design are
trademarks of Lexmark International, Inc., registered
in the United States and/or other countries.