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COLOR LASERJET ENTERPRISE CM4540
MFP SERIES

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   Summary of Contents for HP COLOR LASERJET ENTERPRISE CM4540

  • Page 1: Service Manual

    COLOR LASERJET ENTERPRISE CM4540 MFP SERIES Service Manual...

  • Page 3

    HP Color LaserJet Enterprise CM4540 MFP Series Service Manual...

  • Page 4

    Windows Vista® are U.S. registered services. Nothing herein should be trademarks of Microsoft Corporation. construed as constituting an additional warranty. HP shall not be liable for technical PANTONE® is Pantone, Inc's check- or editorial errors or omissions contained standard trademark for color.

  • Page 5: Conventions Used In This Guide

    Conventions used in this guide TIP: Tips provide helpful hints or shortcuts. NOTE: Notes provide important information to explain a concept or to complete a task. CAUTION: Cautions indicate procedures that you should follow to avoid losing data or damaging the product.

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    Conventions used in this guide ENWW...

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    Table of contents 1 Theory of operation ......................1 Basic operation ........................2 Sequence of operation ....................4 Engine-control system ........................ 5 DC controller ......................6 Solenoids ....................6 Clutches ....................7 Switches ....................7 Sensors ..................... 8 Motors ...................... 9 Fans ........................

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    Step 4: Development ................28 Step 5: Primary transfer ................29 Step 6: Secondary transfer ................ 29 Step 7: Separation ................... 30 Step 8: Fusing ..................30 Step 9: ITB cleaning ................. 31 Step 10: Drum cleaning ................31 Print cartridge ......................31 Developing-roller engagement and disengagement .............

  • Page 9

    Document feeder/scanner motor and fan control ............71 Legal detection sensor sequence ................72 Fan timing sequence ....................72 Optical assembly operation ..................73 Image data path ..................... 73 Document feeder/scanner paper path and sensors ............74 Document feeder pick mechanism ................75 3-bin stapling mailbox ......................

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    Pickup roller (Tray 1) ..................... 114 Reinstalling the pickup roller (Tray 1) ............... 117 Secondary transfer roller ..................118 Reinstall the transfer roller ............... 119 Intermediate transfer belt (ITB) ................. 120 Standard output bin ....................123 Output bin bezel ....................124 Remove the output bin bezel ..............

  • Page 11

    Remove the ASY-TRY-SP (tray assembly) ............ 155 ASY-FRM-RE-FEED-SP (internal assembly) ..............157 Remove ASY-FRM-RE-FEED-SP (internal assembly) ........157 ASY-PBA-RELAY-SB (document feeder PCA) ............... 159 Remove the ASY-PBA-RELAY-SB (document feeder PCA) ....... 159 ASM-IF-SP (document feeder cable) ................. 160 Remove the ASM-IF-SP (document feeder cable) ......... 161 ASY-HNG-L-SP (document feeder left hinge) ..............

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    S-ASSY-INV (inverter) ..................... 188 Remove the S-ASSY-INV (inverter) ............. 188 S-FAN-MFB-30E-05A-006 (inverter fan) ..............190 Remove the S-FAN-MFB-30E-05A-006 (inverter fan) ........190 ASSY-CRG-UNIT-IR4068 (optical assembly) .............. 191 Remove the ASSY-CRG-UNIT-IR4068 (optical assembly) ......191 S-ASSY-MOTOR-UNIT (motor assembly) ..............195 Remove the S-ASSY-MOTOR-UNIT (motor assembly) ........195 S-FAN-D06037600G-001 (scanner fan) ..............

  • Page 13: Dc Controller

    Image scanner power supply unit (PSU) ..............237 Remove the image scanner supply unit (PSU) and fan ......... 238 Interconnect board (ICB) ..................239 Remove the ICB ..................239 DC controller PCA only ..................241 Remove the DC controller PCA only ............241 Low-voltage power supply (LVPS) ................

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    ITB motor ......................292 Remove the ITB motor ................292 Main-drive assembly ....................293 Remove the main-drive assembly .............. 294 Reinstall the main-drive assembly ..........298 Optional paper feeder assemblies (1 x 500-sheet and 3 x 500-sheet) ........303 Front door (optional paper feeder) ................303 Rear cover (optional paper feeder) ................

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    Remove the lifter-drive assembly (500-sheet paper feeder) ......330 Pickup motor assembly (500-sheet paper feeder) ............331 Remove the pickup motor (500-sheet paper feeder) assembly ...... 331 Controller PCA (500-sheet paper feeder) ..............332 Remove the controller PCA (500-sheet paper feeder) ........332 Stapling mailbox ........................

  • Page 16: Switches

    Pre-troubleshooting checklist ..............367 Troubleshooting flowchart ............... 369 Power subsystem ....................370 Power-on checks ..................370 Power-on troubleshooting overview ..........370 Control-panel checks ..................... 372 Scanning subsystem ....................373 Tools for troubleshooting ....................... 374 Component diagnostics ..................374 LED diagnostics ..................374 LED indicators .................

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    Tray 4 paper size switches ............403 Tray 5 paper sensor ..............403 Tray 5 feed sensor ..............404 Tray 5 paper surface 1 and 2 sensors ........404 Tray 5 paper size switches ............405 5V laser and 24V interlock and logic switches (and power switch) 406 New ITB sensor ...............

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    Cleaning page ..................462 Configuration pages ................462 Configuration page ..............462 HP embedded Jetdirect page ............ 464 Embedded protocol page ............465 Finding important information on the configuration pages .... 466 Color-band test ..................466 Print-quality troubleshooting tools ................467 Repetitive defects ruler ................

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    20.00.00 Insufficient memory: <Device> To continue, touch “OK” ..................482 21.00.00 Page Too Complex To continue, touch “OK” ....483 30.01.YY Scanner Failure ............483 30.01.YY Scanner Failure ............483 30.01.YY Scanner Failure ............483 30.01.YY Scanner Failure ............484 30.01.YY Scanner Failure ............

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    47.00.XX Error ............... 495 47.01.XX Error ............... 496 47.02.XX Error ............... 496 47.03.XX Error ............... 496 47.04.XX Error ............... 497 47.06.XX Error ............... 497 47.WX.YZ Printer Calibration Failed To continue, touch “OK” ..497 48.01.XX Error ............... 498 48.03.XX Error ............... 498 48.05.XX Error ...............

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    59.00.YY Error To continue turn off then on ........ 512 59.0X.50 Error To continue turn off then on ........ 513 59.0X.60 Error To continue turn off then on ........ 514 60.00.0Y Tray <Y> lifting error ..........514 62.00.00 No system To continue turn off then on ......515 65.80.A1 Output accessory disconnected ........

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    Bad optional tray connection ............ 526 Calibrating................526 Calibration reset pending ............526 Card slot device failure To clear touch “OK” ......527 Card slot file system is full ............527 Card slot is write protected ............527 Card slot not initialized ............527 Cartridge ship mode ..............

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    Fuser Kit Very Low To continue, touch “OK” ....... 537 Gateways failed ..............538 Gateways OK ................. 538 Genuine HP cartridge installed ..........538 Genuine HP supply installed ............. 538 HP Secure drive disabled ............539 Incompatible <Supply> ............539 Incompatible Supplies ..............

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    Manually feed output stack Then touch "OK" to print second side . 545 Manually feed: <Type><Size> ..........546 Manually feed: <Type><Size> To continue, touch “OK” ....546 Manually feed: <Type><Size> To use another tray, press “OK” ..546 Moving solenoid To exit press ........... 547 Moving solenoid and motor To exit press ........

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    Resend external accessory firmware .......... 555 Resend Upgrade ..............555 Restoring factory settings ............555 Restricted from printing in color ..........555 RFU Load Error Send full RFU on <X> port ........556 ROM disk device failed To clear touch “OK” ......556 ROM disk file operation failed To clear touch “OK”...

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    Unsupported USB accessory detected Remove USB accessory ..564 Upgrade complete To continue turn off then on ......565 Upper bin full ................. 565 USB accessory needs too much power Remove USB Accessory and Turn Off then On .............. 565 USB accessory not functional ............

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    Jams in Tray 1, Tray 2 and internal paper path .......... 602 Jams in Tray 3, 4, and 5 ................. 603 Change jam recovery .................... 608 Paper does not feed automatically ..................609 Product feeds multiple sheets ....................610 Use manual print modes ....................... 611 Solve image-quality problems ....................

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    Determine the installed revision of firmware .............. 651 Perform a firmware upgrade ................... 651 Use the HP Embedded Web Server ............651 Use a USB storage device with the preboot menu ........652 Use a USB storage device with the Device Maintenance menu ..... 653 4 Parts and diagrams ......................

  • Page 29

    Appendix A Service and support ..................783 Hewlett-Packard limited warranty statement ................784 HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement ....785 Color LaserJet Fuser Kit, Transfer Kit, and Roller Kit Limited Warranty Statement ......786 Data stored on the print cartridge ................... 787 End User License Agreement ....................

  • Page 30: Safety

    Ozone production ....................799 Power consumption ....................799 Paper use ......................799 Plastics ......................... 799 HP LaserJet print supplies ..................799 Return and recycling instructions ................800 United States and Puerto Rico ..............800 Multiple returns (more than one cartridge) ........800 Single returns ................

  • Page 31

    Canadian DOC regulations ..................808 VCCI statement (Japan) ..................808 Power cord instructions ..................808 Power cord statement (Japan) ................. 808 EMC statement (China) ..................809 EMC statement (Korea) ..................809 EMI statement (Taiwan) ..................809 Laser statement for Finland ..................809 GS statement (Germany) ..................

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    ENWW...

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