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HP LaserJet 4101mfp World Wide Web, HP service agreements, HP support assistant CD-ROM, HP authorized resellers and support

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World Wide Web

Printer drivers, updated HP printer software, and product and support information can be obtained from the following websites:

●U.S., http://www.hp.com/support/lj4100

●Europe, http://www.hp.com/support/lj4100

●China, ftp://www.hp.com.cn/support/lj4100

●Japan, ftp://www.jpn.hp.com/support/lj4100

●Korea, http://www.hp.co.kr/support/lj4100

●Taiwan, http://www.hp.com.tw/support/lj4100,

or the local driver website, http://www.dds.com.tw

HP support assistant CD-ROM

This support tool offers a comprehensive online information system designed to provide technical and product information about Hewlett-Packard products. To subscribe to this quarterly service in the U.S. or Canada, call (1) (800) 457-1762. In Hong Kong, Indonesia, Malaysia, or Singapore, call Mentor Media at (65) 740-4477.

HP authorized resellers and support

To locate HP authorized resellers and support, call (1) (800) 243-9816 in the U.S. or

(1) (800) 387-3867 in Canada

HP service agreements

Call (1) (800) 743-8305 in the U.S. or (1) (800) 268-1221 in Canada.

C9148-90909

2 Service approach 25

Contents

Page Page Page Quick reference service PIN code: Table of contents List of figures List of tables 1 Product Information 2 Service approach 4 Maintenance 5 Theory of operation 6 Removal and replacement 7 Troubleshooting 8 Parts and diagrams Index Page List of figures Page List of tables Page 1 Product Information Note HP LaserJet 4100mfp (C9148A) HP LaserJet 4101mfp (C9149A) Product speed and throughput Image quality Paper handling Copying capability Expandable design Table 1. Physical specifications 4100mfp (print unit, scan unit, and ADF unit) Scan unit only ADF unit only Table 3. ADF/flatbed-unitacoustical specifications Table 4. Skew specifications Print unit Tolerance Cut paper Table 5. Supported paper sizes and weights for the ADF Size Dimensions Weight Special considerations for ADF documents Figure Model and serial number label Front view Figure 2.Product parts (front view; right side) Figure 3.Optical-unit lock (front view; left side) Back view Figure 4.Product parts (back view) Page 2 Service approach Major assemblies Major assemblies World Wide Web HP support assistant CD-ROM HP authorized resellers and support HP service agreements Page 3 Operation CAUTION General guidelines for using the ADF unit Using the ADF General guidelines for using the glass Using the glass Layout and operation Control panel Hint Navigation Figure 9.Navigation buttons Walk-upcopy display Figure 10. Top-level control-panelmenu display Status bar Configure device, diagnostic, and service menus Menu map Page 4 Maintenance General guidelines WARNING and Table 6. General cleaning guidelines Part Running the cleaning page Cleaning the ADF delivery guide (clear mylar strip) Figure 13. Open the delivery-guidecover Figure 14. Remove the clear plastic sheet Replace the clear, plastic sheet Replacing Table 7. User-replaceableparts MFP Item Procedure Interval Table 7. User-replaceableparts (continued) Table 8. Print-unitmaintenance kit parts RFU installation messages Using HP Web JetAdmin (single update) Using HP Web JetAdmin (multiple or unattended update) Windows parallel connection (local printer) Windows parallel connection (network printer) RFU installation error messages Performing hard-drivedisk initialization Cold Reset NVRAM initialization Performing automatic Calibration Figure 16. Sample calibration target page Lead adjustment for the ADF Center adjustment for the ADF Leading-edgeadjustment for the glass Side-edgeadjustment for the glass 5 Theory of operation Document transportation process Document exposure system Light-conversionprocess Figure 18. MFP block diagram Scan-unitcomponents Figure 19. Scan-unitcomponents ADF components Figure 20. ADF-unitcomponents CPB terminology Typical scanning-processflow Copy processor board LEDs Page ADF motor circuit Optical-unitmotor circuit Scan-unit intake-fanmotor circuit Scanner controller board connectors Overcurrent and overvoltage protection Power-supplyblock diagram Optical unit Figure 25. Optical unit block diagram Scanning process Inverter PCB Scanning lamp CCD driver PCB Signal conversion Overview ADF cover sensor (PS10) Document-detectsensor (PS2) Leading-edgesensor (PS1) ADF motor Document pickup process 6 Removal and replacement must does not Required tools Before performing service from the wall Common fasteners Table 12. Common fasteners found in the MFP Illustration and description Parts removal order Table 13. Parts-removaltree ADF input tray Figure 29. Release the ADF input-trayhinge Figure 30. Remove the ADF input tray ADF pickup roller Figure 31. Release the roller shield Figure 32. Remove the roller shield Figure 33. Remove the ADF pickup roller ADF separation roller Figure 34. Remove the ADF separation roller ADF separation pad Figure 35. Remove the ADF separation pad Figure 36. Replace the ADF separation pad spring ADF unit Figure 37. Disconnect the cable Figure 38. Remove the ADF unit Control-paneldoor Figure 39. Remove the print cartridge Figure 40. Remove the control-panel wire-harnesscover Figure 41. Disconnect the control-panelgrounding strip Figure 42. Release the control-panel door-supportpins Figure 43. Remove the control-paneldoor Figure 44. Remove the product serial- and model-numberpanel Scan-unit right-sidecover Figure 45. Remove the right-sidecover screw Figure 46. Remove the scan-unity right-sidecover Disconnect the ADF cables Figure 48. Disconnect the high-speedcopy connect cable Scan-unit left-sidecover Figure 49. Remove the left-sidescrew Figure 50. Gently pry the top edge of the left-sidecover Figure 51. Remove the scan-unit left-sidecover Intake fan filter Figure 52. Remove the intake filter Formatter cage Figure 53. Remove the formatter-cagecover Figure 54. Slide the formatter cage toward the back of the product Disconnect the formatter high-speedcopy connect cable Scan unit Figure 56. Secure the optical unit Figure 57. Disconnect the CPB cable Figure 58. Disconnect the scan unit cable Figure 59. Remove the scan unit Printing-unittop cover Figure 60. Remove the top-cover rear-mountingscrews Figure 61. Remove the printing-unittop cover Glass Remove the glass mounting screws Remove the glass Figure 64. Note the cable routing pattern Remove the scanning lamp Figure 66. Scanning-lampwire harness routing Reinstall Note Release the optical unit ribbon cable Figure 68. Optical-unit ribbon-cableclip Figure 69. Release the tension-springbracket Figure 70. Remove the optical unit Figure 71. Optical-unit drive-belttension bracket Figure 72. Optical-unitribbon cable ADF door open sensor (PS10) Figure 73. Remove the ADF door open sensor Optical-unitdrive gear/motor assembly Figure 74. Remove the optical-unitcover plate Figure 75. Remove the optical-unitdrive gear/motor assembly Scan-unitpower supply Figure 76. Remove the power-supplyshield Figure 77. Remove the power supply Figure 78. Remove the inverter PCB Scanner controller PCB Figure 79. Unplug the connectors Figure 80. Grasp the scanner controller PCB Figure 81. Remove the scanner controller Intake fan Figure 82. Remove the fan mounting screws Figure 83. Remove the intake fan Figure 84. Correctly orient the intake fan and bracket Page 7 Troubleshooting Page Table 14. Primary steps for troubleshooting Installation conditions Media condition Unit condition Basic troubleshooting process flow Basic troubleshooting Table 15. Basic troubleshooting Table 15. Basic troubleshooting (continued) Power-ondefects Table 16. Power malfunctions Item Solution Print the event log Interpret the event log Display the event log Control-panelmessages Status messages Warning messages Error messages Critical error messages Table 18. Control-panelerror messages (continued) Page Page Copy processor board LEDs Table 19. Troubleshooting copy processor board LEDs Control panel display MFP functionality Action (LJ4100mfp and To print a paper-pathtest To perform a diagnostic test To access the service menu (PIN code: 04410002) Jams Table 21. General ADF jam troubleshooting Cause Clearing repeated ADF jams Creating a customer print job Configuration-pageelements Figure 89. Sample configuration page JetDirect-pageelements Supplies-pageelements Usage page Figure 92. Sample usage page File-directory-pageelements Table 22. Image-qualitychecks Image-qualitychecks Checking the print cartridge 6000-page full print cartridge weight 10,000-page empty print cartridge weight Image-defecttables Table 23. Image defects Problem Condition Table 23. Image defects (continued) Use the straightest paper path Isolate the source of the jam Determine where media jams occur Is the MFP is misfeeding or creating multifeed jams Isolate a media brand Isolate a media type Page 8 Parts and diagrams Parts Related documentation and software Support Table 24. Technical support websites Accessories Table 25. Accessories and supplies Part no Product no Consumables Common hardware Table 27. Screws used in the ADF unit and scan unit HP Laserjet 4100 differences Table 28. HP LaserJet 4100 differences HP LaserJet Page Covers Table 29. Covers Part Number Reference Figure 96. Top-coverassembly Table 30. Top-coverassembly Scan unit (1 of 2) Table 31. Scan unit (1 of 2) Scan unit (2 of 2) Table 32. Scan unit (2 of 2) Figure 99. Glass, formatter, CPB, and cables Table 33. Glass, formatter, CPB, high-speedcopy connect cable, and power cord ADF unit (1 of 2) Table 34. ADF unit (1 of 2) ADF unit (2 of 2) Table 35. ADF unit (2 of 2) Table 36. Alphabetical parts list Ref Table 36. Alphabetical parts list (continued) Table 37. Numerical parts list Table 37. Numerical parts list (continued) Page Index