Canon imagePRESS C1 Service Manual – 2006 (P/N DU7-1199-010)

The Canon imagePRESS C1 Service Manual (P/N DU7-1199-010, September 2006, Revision 0) covers the console main unit. It identifies compatible DADF, finisher, puncher, side paper deck, fax, send, security, and printing options and covers selected setup and diagnostic tasks. Internal repairs to separate accessories require their own service manuals.

Search, Bookmarks, and Circuit Drawings

Finding text and diagram details: The manual text is searchable, and embedded bookmarks link to chapters, subsections, and circuit diagrams. Zoom in to read small connector labels and pin numbers. The high-voltage box removal illustration F-10-93 (PDF p. 570) has incomplete linework.

The download is one printable 990-page PDF, including the original front and back covers and the 32-page appendix. The appendix contains monochrome and full-color timing charts, a signal list, and 24 pages of general circuit diagrams.

Press Repair, Calibration, and Fault Isolation

The topics below are selected highlights. Other sections cover daily timer settings and service-mode setup for card-based department management.

• Controller and storage: Controller box and PCB replacement, HDD and SRAM service, data backup and restoration, and software recovery in Safe Mode.

• Reader and laser scanner: Copyboard glass, white plate, xenon lamp, CCD, scanner drive, and laser scanner replacement, with reader corrections after service.

• Image formation: Developing rotary and process unit service, drum and intermediate transfer belt replacement, and setup for the potential, patch, and ATR sensors.

• Paper transport and fixing: Pickup, registration, duplex feed, and decurler coverage, plus replacement procedures for fixing belts, rollers, cleaning webs, heaters, and thermistors.

• Fault isolation: Engine test prints and image-defect charts, error, jam, and alarm codes, plus service-mode I/O checks and electrical references for tracing faults.

• Installation and scheduled service: Site and power checks, process and developing assembly setup, network verification, relocation, and maintenance schedules.

Canon wrote this manual for qualified service personnel who install, maintain, and repair the press. The work involves high-voltage circuits, laser exposure, heated fixing components, and heavy assemblies, so technicians should follow Canon’s isolation and handling instructions.

Controller Startup and Reader Adjustments

The main-controller chapter traces Copy, BOX, SEND, Fax Receive, and PDL image data. Startup diagrams follow the boot program, HDD, image memory, reader, and printer. The E602 subcode tables help distinguish HDD startup and data errors and identify the corresponding recovery procedures. The upgrade chapter covers HDD formatting, firmware reloads, and controller backups with Canon’s Service Support Tool.

After reader work, the manual identifies the corrections required for CCD or copyboard-glass replacement and the service-label data used after a reader-board replacement or RAM clear. The laser chapter explains dual-beam exposure, main- and sub-scan synchronization, and APC and PWM control. Canon treats laser scanner alignment as a factory setting.

Color Control, Feed, and Fixing

The image-formation chapter follows the four-color developing rotary, drum charging and cleaning, primary transfer to the intermediate transfer belt, and secondary transfer to the sheet. It explains the belt cleaner and waste-toner path alongside the potential, ATVC, ATR, ACVC, D-max/D-half, ARCDAT, PASCAL, and Auto Carrier Refresh controls.

Post-replacement references cover the matched potential sensor and control PCB, patch-sensor correction labels, drum and ATR procedures, waste-toner counters, automatic gradation correction, and cassette and manual-feed registration. Media tables distinguish feed and duplex limits for plain, heavy, coated, and recycled stock and transparencies.

Canon warns that turning the developing rotary in the wrong direction with an assembly installed can peel the toner-blocking sheet away where it contacts the drum. Excessive fixing-roller refresh can abrade the roller surface.

Test Prints, Wiring, and Maintenance References

The diagnostic chapter pairs 16-gradation, full-area halftone, grid, MCYBk horizontal-line, 64-gradation, and full-color 16-gradation prints with specific defects. For example, the grid test helps narrow down color displacement to the laser scanning, transfer, or drum-drive systems.

The DISPLAY, I/O, ADJUST, FUNCTION, OPTION, TEST, and COUNTER references cover live status, sensor inputs, high-voltage and density monitoring, operational checks, and counters. PCB connection drawings and component lists identify motors, solenoids, fans, sensors, switches, heaters, and boards by function and connector location.

Scheduled-service tables group cleaning, lubrication, inspection, adjustment, and replacement by assembly. The tools chapter lists mirror positioning tool FY9-3009-040, potential-sensor checking electrode FY9-3057, test probes, image-checking tools, lubricants, and cleaning materials.

Sample Charging-Grid and Fixing-Nip Checks

The primary charging assembly drawing gives a 1.0 mm grid-height reference and identifies where to compare the height before and after charging-wire replacement.

For a fixing belt or roller replacement, Canon gives a 4.5 ± 1 mm nip-width reference at both marked positions on the solid-cyan test print, using 120–128 g/m² duplex coated stock from the manual feed tray. The nip width is a verification measurement, with pressure set at the factory.