2007 Canon LBP5000 / LBP5100 Color Laser Printer Service Manual (P/N 0015–8328)

This Canon service manual covers the 2007 LBP5000 and LBP5100 color laser printer series, with model-specific repair procedures and coverage of the LBP5100's standard duplex system.

Supplied as a single 162-page PDF in English.

• Laser and image formation: Laser Scanner Unit and ETB Unit removal, four-drum inline printing, environmental compensation, and color misregistration control.

• Paper handling: Pickup and registration component service, jam detection, and removal of the LBP5100 duplexing drive, feed motor and reverse motor.

• Fixing assembly repair: Fixing Film Unit and Fixing Pressure Roller removal, nip-width inspection, temperature-control data and heater fault diagnosis.

• Control electronics: Controller and power-supply board replacement, with LBP5100 printer-setting restoration, EEPROM replacement and post-replacement calibration procedures.

• Diagnostic procedures: Engine test prints, model-specific error-code tables, service-mode charts, transfer-bias settings and Special Print Mode troubleshooting.

• Electrical reference: Circuit schematics, connector pin references, component-location views and functional diagrams for the laser, power supply and paper-handling systems.

Canon issued this manual for qualified service personnel learning the technical theory, maintenance and repair of these printers.

Engine Control and System Functionality

The DC controller CPU sections explain engine sequencing, motor control and sensor inputs. Image-formation coverage follows primary charging, laser beam exposure, toner projection development and the on-demand fixing method.

D-max and D-half control sections explain density and halftone correction. The Electrostatic Transportation Belt (ETB) sections describe color displacement patterns and the sensors used to read them.

The laser scanner is covered as a removable assembly; it cannot be adjusted or disassembled in the field. Main drive assembly removal is also documented, but Canon prohibits field disassembly of that assembly.

Paper Handling and Duplex Repair

Removal instructions cover the Cassette Pickup Solenoid, Separation Pad, registration sensor, Main Motor and Pickup Motor. Registration Roller replacement on the LBP5100 also requires the service-mode counter reset described in the troubleshooting chapter.

Separate LBP5100 sections cover the Duplexing Driver PCB, reverse solenoid and duplex feed path. Its error-code table includes duplex connection fault E052 and fixing-fan fault E805, helping technicians select the correct fault information for this model's additional hardware.

Controller Replacement and Fault Diagnosis

Board replacement coverage includes the Video Controller PCB, Memory Controller PCB, Low-Voltage Power Supply PCB and High-Voltage Power Supply PCB. LBP5100-specific instructions also cover the Sub High-Voltage Power Supply PCB.

Printer Setting Restoration, EEPROM replacement following E747 and post-replacement calibration are documented for the LBP5100. The error-code tables pair fault conditions with possible causes and remedial actions, including ETB density sensing and color misregistration faults.

The engine test-print procedure checks printer-engine operation. Service-mode tables cover diagnostic charts, cartridge counters and model-specific fixing-temperature and transfer-bias settings.

Fixing Assembly Service and Handling Precautions

The fixing chapters cover Fixing/Delivery Motor removal, media-dependent temperature controls, thermistor signals, the fixing heater safety circuit and thermal-fuse protection. Pressure-roller cleaning and nip-width measurement are included; an incorrect nip calls for assembly replacement because it is not adjustable.

Canon warns that incorrect paper removal during the nip check can tear the fixing film. Excessive lifting of the upper cover during right-cover removal can damage the control-panel flat cable.

Follow the manual's electrical-isolation and fuser-cooling precautions during service; the high-voltage circuits and hot fixing assembly require particular care.

Maintenance and Technical Reference

Reference material includes toner cartridge yield, power supply requirements, sensor detection criteria and service-tool numbers, including digital multimeter FY9-2032. Static Charge Eliminator removal and cleaning are covered for the LBP5100, alongside feed-path cleaning guidance. Special Print Mode tables relate print defects to model-specific driver settings.

Reference drawings include the Cross Section View, laser-driver wiring diagram, image-mask timing chart, fixing-temperature control circuit, low-voltage power-supply diagram and duplex feed diagram.

PDF Navigation and Diagram Readability

The page total includes 14 opening pages, the eight-page electrical-component appendix with its four introductory pages, and two closing pages; chapter dividers, contents pages and blank pages are already counted. Chapter text is searchable and nested PDF bookmarks provide section navigation, but some labels within illustrations are not searchable. Small schematic pin and signal labels require zooming for comfortable reading.