Canon imageRUNNER 5570/6570 Service Manual 2005 (P/N DU7-1143-000)

Official Canon OEM service publication: P/N DU7-1143-000, Rev. 0, issued January 2005 for the imageRUNNER 5570 and 6570. This 932-page PDF covers technical theory, installation, maintenance, troubleshooting, and repair of the base machine across regional configurations. Canon issued the manual for qualified service personnel, so it is suited to technicians who already understand copier electrical safety, laser precautions, high-voltage image-formation systems, and service-mode work.

• Controller and scanner repair: Removal and replacement procedures cover the main controller box and PCB, SDRAM, Boot ROM, HDD, reader controller, CCD unit, scanning lamp, scanner motor and cable, glass, sensors, and laser scanner unit, along with the required post-replacement adjustments.
• Image-formation systems: Potential control, laser output, charging, developing bias and toner supply, transfer, and separation are explained in operating sequence. Repair sections address the process unit, photosensitive drum, drum cleaner, charging assemblies and wires, developing cylinder and blade, hopper motors, and potential sensor.
• Pickup, duplex, and fixing: Paper-path coverage traces the right and left decks, cassettes 3 and 4, manual feed, registration, duplex/reversing paths, delivery, and jam detection. Factory procedures cover their rollers, motors, clutches, solenoids, and belts, plus the IH fixing unit, upper and pressure rollers, thermistors, heater, cleaning web, shutter, and separation claws.
• Diagnosis and adjustment: Error details, host/finisher/ADF jam codes, alarm codes, faulty-image checks, and electrical component maps are paired with Level 1 and Level 2 service modes for DISPLAY, I/O, ADJUST, FUNCTION, OPTION, TEST, and COUNTER. Adjustment coverage includes image position, surface potential, mirror bases, charging wires, the fixing web and inlet guide, and feed-roller pressure.
• Installation and software: Sections cover site selection, unpacking, scanner/fixing/developer/pickup setup, registration checks, network loopback and host tests, and installation of Copy Tray-L1, a card reader, NE Controller-A1, and the original holder. SST procedures address HDD formatting, system/boot/controller/fax downloads, and SRAM/MEAP backup and recovery.
• Diagrams and maintenance data: The publication contains more than 1,000 numbered figures and more than 200 numbered tables. Named references include the Wiring Diagram of the Major PCBs, image-data flow diagrams for Copy, Box, SEND, Fax, and PDL functions, Arrangement of Rollers and Sensors, IH Fixing Method, the General Timing Chart, and the 20-sheet General Circuit Diagram (Printer) plus the reader circuit diagram. Periodic-replacement and durable/consumable tables supply factory part numbers and service-life guidance.

Configuration and System Coverage

The core specifications and electrical sections distinguish 100V, 120V, and 230V versions. Dedicated 120V option maps show the Multi PDL Printer Kit-G1, Super G3 Fax Board-R1, Universal Send Kit-D1, iR Security Kit-A2, and the supporting boards or licenses. System construction drawings identify DADF-M1, Finisher-T1, Saddle Finisher-T2, Shift Tray-D1, Puncher Unit variants, Copy Tray-L1, and Paper Deck-V1. The cover lists the iR5570 and iR6570; the printing-speed table separately identifies its bracketed values as applying to the iR5570/iR5570N.

Product tables cover memory and HDD configuration, resolution, paper types and capacities, copy/print speeds, image margins, environmental limits, electrical ratings, power use, ozone, dimensions, and weight. The operating chapters connect those specifications to low-temperature, high-humidity, heavy-paper, transparency, bond-paper, power-save, and sleep sequences.

Field Adjustments, Tools, and Service Cautions

Field work goes beyond parts access. The manual documents white-plate and ADF data adjustments after reader or CCD work, mirror-base positioning, potential-sensor checks, charging-wire routing and height, cleaning-blade and side-seal installation, fixing-web counter reset, controller/HVT PCB value transfer, and roller or solenoid orientation and position checks. Its special-tool table identifies the FY9-3009 mirror-positioning tool, FY9-9196 NA-3 test sheet, FY9-3012 potential-sensor electrode, FY9-3014 environment-sensor checker, and FY9-3038/FY9-3039 tester extension pins.

Canon warns that the thin fixing shutter can deform during repair and then interfere with and damage the fixing roller surface. The HDD and firmware chapters likewise caution that a power interruption during access or downloading can interrupt the write and leave the copier unable to start. Because this work reaches the laser path, high-voltage charging circuits, and heated fixing assembly, follow Canon's isolation and safety precautions.

Scope Boundary

This is the base-machine service manual, not a full overhaul manual for every listed peripheral. It provides option mapping, host-interface information, accessory-related service modes, and finisher/ADF jam-code references, but its complete parts-replacement chapters center on the reader and printer assemblies. Copy Tray-L1, card-reader, NE Controller-A1, and original-holder installation are included; full DADF, finisher, saddle-finisher, puncher, and Paper Deck-V1 teardown procedures are outside this volume.