Canon imagePROGRAF iPF5100 Service Manual (P/N DU7-1234-000)

• Covers the Canon imagePROGRAF iPF5100, including the auto roll feed unit, in a 334-page PDF of the August 2007, Rev. 0 service manual; manual code DU7-1234-000.
• Carriage and feed-system repair covers carriage removal, flexible cable installation, feed motor replacement, and cassette pick-up and separation roller service.
• Details purge unit, ink tank unit, and waste ink collection unit removal, along with automatic and manual ink drainage.
• Post-replacement adjustments address multi sensor recalibration, head management sensor positioning, and carriage wire-roller height.
• Electrical fault tracing is supported by the seven-sheet General Circuit Diagram and connector pinouts for the main controller, carriage, power supply, and roll feed unit PCBs.
• Service mode diagnostics include sensor and switch I/O displays, warning and error histories, and parts-life counters with the resets required after component replacement.

Printer System Architecture

Written for qualified service personnel, this manual covers the 17-inch, 12-color desktop printer’s technical theory, installation, maintenance, and repair. The hardware specifications identify the PF-03 printheads and distinguish PFI-103 tanks for black and gray inks from PFI-101 tanks for the other colors.

The manual tracks the print signal path from the host computer driver through the DDR-SDRAM and ASIC processing units to the nozzle trains in both printheads. Its Print Signal Sequence and Print drive timing diagrams explain the L-COA imaging processor’s print drive logic, including clock, latch, and Heat Enable signals at the printhead interface.

The Overview of Ink Passage schematic follows the sub-buffer, supply valve, suction pump, and maintenance cartridge. Supporting sections explain ink-level detection, pigment agitation, and cleaning-cycle ink consumption. Paper Path diagrams distinguish cassette feeding, front and top manual loading, and roll feeding, with the associated media sensors.

Carriage, Cutter, and Ink-System Repair

The disassembly chapter also addresses the cutter drive and cutter lifter units, spur unit, mist fan, and platen duct. Reassembly notes cover carriage lift-gear indexing, linear-scale orientation, and flexible cable routing. Lubrication diagrams identify the locations requiring MOLYKOTE PG-641 or EU-1.

Canon warns that moving a capped carriage can press the cap rubber against the nozzles and damage the printhead. The main controller’s locking connectors present another repair trap: pulling a carriage flexible cable against an engaged lock can damage the cable.

Repair coverage centers on the major assemblies; smaller-component disassembly is referred to a separate parts catalog. Red-screw assemblies are identified as factory-adjusted units that must not be disassembled in field service.

Workshop Calibration and Maintenance Data

Print-quality procedures cover automatic and manual printhead alignment, feed/band correction, and color calibration, supported by sample adjustment printouts. Carriage height settings are tied to media type and multi sensor gap measurement.

The replacement procedures distinguish GAP CALIB. and OPTICAL AXIS adjustment from NOZZLE CHK POS. work for the head management sensor. They also specify replacement of the multi sensor reference plate when the carriage or multi sensor is replaced. The tool list identifies Carriage Wire Tool AY3-4493-000 for wire-height adjustment.

Consumable-parts tables link component part numbers to service-life criteria, warning states, and service counters. Platen, pinch roller, and spur cleaning are covered separately. Installation and relocation coverage extends to the optional stand and desktop basket, transport preparation, and reinstallation checks.

Controller Replacement and Error Diagnosis

PCB replacement mode documents transfer of stored settings and counters between the main controller and maintenance cartridge relay PCBs. The manual cautions against replacing both boards together because their backup data must be preserved.

Firmware-update instructions describe the GARO Firmware Update Tool and L Printer Service Tool, with separate coverage of download mode. The NOZZLE 1 pattern prints without nozzle backup, allowing non-discharging nozzles to be checked.

Warning and error tables identify carriage motor faults, media-feed problems, and printhead or ink-tank EEPROM errors. The service-call table adds corrective actions for purge-kit life limits and board identity mismatches.

Safety Notice: Working with large-format imaging equipment exposes technicians to sensitive electronics and motorized internal assemblies. Always review and follow proper power isolation procedures before accessing the main controller PCB or servicing carriage components.