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Canon MF735C Series User Manual

Canon MF735C Series
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Revision 2.0
MF735C Series
Service Manual

Table of Contents

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Canon MF735C Series Specifications

General IconGeneral
FunctionsPrint, Copy, Scan, Fax
Print ResolutionUp to 1200 x 1200 dpi
Copy ResolutionUp to 600 x 600 dpi
Maximum Paper SizeA4
Toner saver modeYes
Greyscales256 levels
Max. scan width216mm
Memory1 GB
Product TypeLaser Multifunction Printer
Print TechnologyLaser
Scan TypeFlatbed, ADF
Scan ResolutionUp to 600 x 600 dpi
ConnectivityUSB, Ethernet
Operating System CompatibilityWindows, macOS
First Print Out TimeLess than 8.5 seconds
Printer languagesPCL6, UFR II
Copy modesText
Reduction / Enlargement25% - 400%
Other featuresAuto duplex
Colour scanning depth24-bit
CompatibilityTWAIN, WIA
Media typesPlain Paper, Recycled Paper, Heavy Paper, Label, Envelope
Media sizesA4, A5, B5, Legal, Letter, Executive
Interface typeUSB 2.0

Summary

MF735C Series Service Manual

1. Product Overview

Safety Precautions

Essential safety guidelines including laser, toner, battery, and assembly/disassembly.

Product Lineup and Features

Details on the product series, available models, and key features.

Host Machine Specifications

Technical specifications for the main printer unit, including hardware and performance.

Paper Specifications

Information on supported paper types, sizes, and auto 2-sided printing capabilities.

Parts Identification

Diagrams and lists identifying external and internal machine components.

2. Technical Explanation (Device)

Basic Configuration and Functional Overview

Overview of the machine's six main functional blocks and their interconnections.

Original Exposure/Feed System Details

Explanation of the CIS, ADF specifications, drive configuration, and detection mechanisms.

Laser Exposure System Details

Description of the laser scanner unit, functional configuration, and failure detection methods.

Controller System Components and Functions

Details on main and DC controllers, motor control, and power supply units.

Image Formation System Overview

Explanation of major components, image formation process, and high voltage controls.

Pickup Feed System Overview

Details on pickup, feed, delivery systems, parts configuration, and controls.

Fixing System Overview

Explanation of the fixing system, temperature control, protection, and failure detection.

3. Technical Explanation (System)

System Management Overview

Information for service technicians on the machine's system management.

Version Upgrade Procedures

Details on available firmware upgrade methods: UST, Internet, USB, PCB replacement.

Setting Information Export/Import (DCM)

Procedure for backing up and restoring service mode setting values using DCM.

Monitoring Function (E-RDS)

Overview of the E-RDS monitoring program for collecting machine status and failure information.

4. Periodical Service

Serviceable Parts and Maintenance

Information on periodically replaced parts, consumable parts, and required periodical services.

Periodical Services

Indicates if the machine requires any specific periodical service.

5. Parts Replacement and Cleaning

Major Components Identification

Identification of major units like ADF/Reader and Host Machine components.

Electrical Component Layouts

Diagrams showing electrical components like motors, sensors, PCBs, and heaters.

External Cover System Removal Procedures

Step-by-step guide for removing external covers like toner cartridge, left/right covers, etc.

Original Exposure/Feed System Component Removal

Procedures for removing ADF unit, rollers, CIS, and drive units.

Controller System Component Removal

Instructions for removing controller cover, PCBs, wireless LAN, and panel units.

Image Formation System Component Removal

Procedures for replacing transfer rollers, ITB unit, density sensor, and motors.

Fixing System Component Removal

Steps for removing the fixing assembly, power supply unit, and fixing motor.

Pickup Feed Delivery System Component Removal

Guides for removing pickup rollers, separation rollers, motors, and feed units.

6. Adjustment Procedures

Post-Replacement Adjustments

Procedures for adjusting components after replacement like control panel, ITB, and PCBs.

Scanner Unit Calibration Procedures

Steps for AGC, paper back shading, and DF white level adjustments.

ADF Geometric and Color Displacement Adjustments

Procedures for adjusting copyboard and ADF geometric and color displacement.

7. Troubleshooting

Test Print Procedures

Instructions for performing engine and controller test prints.

Controller Test Prints and Usage

Details on various controller test print patterns and their interpretation.

Cartridge Log Report Analysis

Explanation of cartridge log reports for users and service technicians.

Troubleshooting Common Issues

Guidance on recurring faulty images, nip width confirmation, and duplex copy hue differences.

Debug Log Collection

Procedure for collecting debug logs for problem analysis.

8. Error/Jam/Alarm Codes

Log Indication Overview

Explanation of error, jam, and alarm log indications on the control panel.

Error Code Details

List of error codes, detection descriptions, and remedies.

Jam Code Details

Details on jam codes, sensor names, and areas for host machines and ADF.

Alarm Code Details

Description of alarm codes, including toner bottle empty alarms.

9. Service Mode Operations

Service Mode Access and Usage

Overview of service mode, access methods, remote UI usage, and operating conditions.

COPIER Service Mode Functions

Detailed explanation of COPIER service modes: DISPLAY, ADJUST, FUNCTION, OPTION, COUNTER.

FEEDER Service Mode Functions

Details on ADJUST and FUNCTION modes for the ADF (FEEDER).

FAX Service Mode Functions

Explanation of SSSW, MENU, NUM, NCU, MODEM, and FACULT service modes.

TESTMODE Functions

Detailed descriptions of PRINT, MODE, THRU, NRKE, BLND, DENS, SW, MONOMODE, FEED, START.

10. Installation Procedures

Copy Control Interface Kit-C1 Installation

Steps for installing the Copy Control Interface Kit-C1.

MiCARD Attachment Kit-B1 Installation

Procedure for installing the MiCARD Attachment Kit-B1.

Copy Card Reader-F1 Installation

Installation guide for the Copy Card Reader-F1.

APPENDICES

Service Tools and Supplies

Lists of special tools and solvents/oils required for servicing.

General Circuit Diagram

Diagrams illustrating the machine's electrical circuits.

Backup Data List

List of data that can be backed up and restored, categorized by function.

Soft Counter Specifications

Classification and details of software counters used for tracking machine operations.

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