1996 Canon CLC700 / CLC800 Color Laser Copier Service Manual (P/N FY8-13D5-020)

Canon CLC700/CLC800 factory service manual, document code FY8-13D5-020, Revision 2, November 1996.

A 651-page PDF supplied as one file, including the cover and technical appendix.

• Drum and developing-system repair: Photosensitive drum removal, developing-cylinder disassembly, transfer drum sheet replacement, and cleaning-blade service.

• Paper-path service: Cassette and multifeeder pickup rollers, registration clutches, separation adjustments, and the CLC800 duplexing unit’s feeding and reversing mechanisms.

• Service-mode troubleshooting: Sensor-state displays, jam and error histories, motor and high-voltage output tests, and detailed self-diagnosis codes.

• Factory adjustments: CCD AUTO-ADJ, automatic gradation correction, ATR toner-density initialization, laser output, and paper retention and image registration timing.

• Electrical references: General Circuit Diagram, model-specific DC Controller Circuit Diagrams, Reader Controller Circuit Diagram, and General Timing Chart for tracing coordinated machine operation.

This manual is suited to copier service technicians familiar with electrophotographic equipment, electrical measurements, and the specialized tools required for laser and mechanical adjustments.

System Operation and Architecture

This manual breaks down the complete electrophotographic process, from initial pre-exposure and corona charging through laser exposure, development, paper retention, transfer, separation, and drum cleaning. It covers the brush-type transfer system and heat roller fixing assemblies, with CCD shading correction and image-stability control explaining how the reader and print engine maintain color and density.

Electrical troubleshooting centers on the reader and DC controller PCBs. Connector pin assignments and signal descriptions cover the scanner assembly, drum motor, and laser driver boards, along with sensor inputs and motor, clutch, and solenoid outputs.

Coverage distinguishes TYPE 1 and TYPE 2 builds through market-specific serial-prefix tables and different sensor, cooling-fan, and mechanical arrangements. The CLC800 has automatic duplexing; two-sided copying on the CLC700 uses manual feeding.

Mechanical Repair and Revision Notes

Fixing and scanner assemblies: Fixing-system repair extends to upper and lower rollers and heaters, thermistors, the cleaning belt, and oil-applying and oil-removing assemblies. The NIP-CHK procedure covers fixing nip measurement and pressure adjustment.

Scanner cable routing, mirror positioning, and the Drive System Belt Layout support work on the optical and drive assemblies.

Developing assemblies: The developing sections distinguish cyan sleeves from Company B and Company M by their markings and different S-B gap requirements. These distinctions help identify the correct sleeve and adjustment requirements before replacement.

Revision notes identify replacement developing-drive electrodes, sleeve sliders, and fixing plates for development faults caused by poor high-voltage contact.

Transfer drum: A modification addresses toner contamination at the separation claw. The revised arrangement is already incorporated in transfer drum units numbered 227502 and later—this is a drum-unit serial break, not a copier serial range.

Handling cautions explain how reverse rotation of a removed transfer drum can damage the transfer and retention brushes. The laser section also warns that static discharge at the laser terminals can permanently damage the laser.

Electrical Diagnosis and Factory Adjustments

Self-diagnosis coverage separates E000 fixing faults, E020 toner-density/ATR faults, and E061 drum surface-potential faults. PGTYPE test-print examples connect halftone, grid, and gradation patterns with image defects, including color displacement and density problems.

Controller replacement coverage goes beyond board removal: service-data backup, restoration, and required post-replacement initialization are documented. Reference tables provide electrical signal checks, mode-dependent fixing temperatures, mechanical clearances, and image-alignment specifications.

The special-tool tables identify the FY9-4013 laser power checker and FY9-3015-000 S-B gap gage, along with their intended service tasks. Mirror adjustment uses the listed FY9-3002-000 positioning tool.

Installation, Maintenance, and Coverage Limits

Installation and relocation procedures cover starter developer, fixing oil, transport restraints, and initial image checks. Maintenance charts identify replacement parts, service intervals, and component-specific cleaning and lubrication requirements.

Installation instructions also cover the Control Card-V, drum heater, and model-specific cassette heaters. Projector, RDF, and sorter diagnostic references do not replace those accessories’ separate service manuals.

The HVT schematic set is incomplete: this PDF contains HVT Circuit Diagram sheets 1/3 and 3/3, but sheet 2/3, printed page A-94, is missing.

Working on high-voltage electrophotographic equipment carries inherent risks. Observe the manual’s electrical isolation, laser-handling, and hot-fixing-assembly precautions during repair.

File Format and Readability

The total comprises one cover page, 543 pages covering Chapters 1–6, and 107 appendix pages. These are all included in the stated page count.

Text search: PDF text search is not available.

Navigation: Embedded bookmarks cover the service sections and appendix. The “Return to Index” bookmark points to a separate index file that is not included.

Readability: Small circuit-diagram component labels and connector numbers require zooming; some diagrams also need rotation for comfortable reading.