2001 Canon iR1600/iR2000 Copier Service Manual (P/N FY8-13HJ-000)

This Canon service manual covers the iR1600 and iR2000 digital copiers, with technical theory, installation, maintenance, and repair procedures. It is Revision 0, September 2001, identified on the cover as FY8-13HJ-000.

• Image reading and laser exposure: CS unit, reader motor, and laser/scanner unit removal, with gain adjustment and image-position calibration.

• Image formation: Drum unit, developing assembly, and transfer charging roller service, plus bias control and toner-level detection.

• Paper handling: Cassette Pickup Assembly and multifeeder disassembly, registration-roller service, pickup retries, and jam detection.

• Fixing assembly: Fixing and pressure roller replacement, heater service, nip inspection, and temperature-control fault diagnosis.

• Electrical diagnostics: Self-diagnosis, service mode parameters, sensor tests, D-RAM checks, and PCB replacement settings.

• Accessories and diagrams: Cassette units, Inner 2-Way Tray-B1, general circuit diagrams, PCB wiring layouts, and operational timing charts.

Written for qualified service personnel, this manual assumes familiarity with copier servicing and the electrical test equipment used in its diagnostic procedures.

Image Quality and Paper-Feed Diagnosis

The Image Adjustment Basic Procedure separates scanner-side problems from printer-side faults using copy output and internal test patterns. That distinction helps narrow light, foggy, or uneven images to the reading system or the drum, developing, and transfer assemblies.

Image-reading coverage explains shading correction and automatic background control, then covers gain adjustment after copyboard-glass, CS unit, or analog processor PCB replacement. Toner-level detection compares the antenna output with developing bias during warm-up and initial rotation.

Paper-feed troubleshooting combines jam history with sensor-status checks and location-specific fault tables for pickup failures, double feeding, and wrinkling. The manual distinguishes delay, stationary, and cover-open jams.

Deforming the right upper frame during copyboard-glass removal can bring it into contact with the CS unit and damage the sensor.

Fixing Repairs and Electronic Controls

Fixing coverage extends to the pressure roller, fixing roller, heater, separation claws, and delivery sensor. The manual explains why E000–E004 errors remain stored after power cycling and identifies the service-mode reset associated with correcting these faults.

Canon warns that cleaning or disturbing the fixing thermistor or thermal switch can deform these parts and cause overheating or fire.

The image processor and DC controller sections explain control signals and power-supply relationships. Self-diagnosis covers the main motor (E010), laser/scanner unit (E100), card-reader communication (E719), and heat-discharge fan (E805).

PCB replacement guidance covers preserving user and service data and restoring the required adjustments.

Note: Always verify the machine is fully isolated from its power source and adequately cooled before inspecting internal components.

Accessory Coverage, Circuit Diagrams, and Updates

Cassette-unit chapters distinguish feeding driven by the host's main motor from arrangements with a separate pickup motor. Inner 2-Way Tray coverage includes the delivery flapper, solenoid, sensors, and removal procedure.

ADF repair and detailed PCL printer-board service are referred to separate manuals. Finisher-L1 error troubleshooting and firmware updating are included; full finisher disassembly falls outside this manual's accessory coverage.

Visual references include the Wiring Diagram of the Major PCBs, image-processing block diagram, fixing-temperature control circuit, General Timing Chart, and General Circuit Diagram.

The firmware chapter documents Service Support Tool downloads and ROM DIMM replacement. Finisher-L1 updating uses downloader PCB FY9-2034, with connection diagrams and version checks.

A Preview of Fixing Temperatures and Nip Checks

These fixing specifications are a small selection of the service data in the manual. For both copiers, the temperature-control table lists 173°C during printing in plain paper mode and 195°C in heavy paper mode.

The fixing-roller pressure check specifies a center nip width of 2.9–4.6 mm. This is an inspection specification; the fixing nip is not designed for adjustment.

Searchable Text, Bookmarks, and PDF Contents

Search and diagram detail: The PDF provides text search and bookmarks for chapters and major subsections. Small pin numbers and signal labels in the circuit diagrams require zooming, particularly on the large general circuit sheet.

Supplied as one printable, 487-page PDF in English: 20 cover and preliminary pages, 452 chapter pages, a 13-page appendix, and two closing publication pages. The total already includes 28 blank or blank-designated pages.