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Canon i-SENSYS MF4320d User Manual

Canon i-SENSYS MF4320d
182 pages
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Aug 22 2008
Service Manual
MF4300 Series

Table of Contents

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Canon i-SENSYS MF4320d Specifications

General IconGeneral
Print TechnologyLaser
FunctionsPrint, Copy, Scan
Duplex PrintingYes
Scanner TypeFlatbed
Scan ResolutionUp to 600 x 600 dpi
Copy ResolutionUp to 600 x 600 dpi
Paper Input Capacity250 sheets
Paper Output100 sheets
ConnectivityUSB 2.0
Operating System CompatibilityWindows, Mac OS
Print Speed22 ppm
Print ResolutionUp to 600 x 600 dpi

Summary

Chapter 1 Introduction

1.1 Product Specifications

Provides an overview of the machine's capabilities and technical details.

1.1.1 Names of Parts

Identifies and labels all key external and internal components of the machine.

1.1.1.1 External View

Shows a visual representation of the machine's external appearance.

1.1.1.2 Section View (Host Machine)

Illustrates the internal layout and components of the main machine body.

1.1.1.3 Section View (ADF/DADF)

Depicts the internal structure of the Automatic Document Feeder (ADF) and Duplex Automatic Document Feeder (DADF).

1.1.1.4 Control panel

Details the layout and function of the machine's control panel buttons and display.

1.1.2 Safety

Outlines essential safety guidelines, including precautions for laser mechanisms, toner, and electrical components.

1.1.3 Product Specifications

Details technical specifications for the host machine, ADF/DADF, and FAX functions.

1.1.4 Function List

Lists various functions including scanning ranges, recording ranges, and printer driver environments.

Chapter 2 Basic Operation

2.1 Construction

Describes the functional configuration and main blocks of the machine's operation.

2.1.1 Function Configuration

Explains the functional blocks composing the host machine's system.

2.2 Basic Sequence

Details the operational sequence of the machine from power-on to motor stop.

2.2.1 Basic Operation Sequence

Outlines the sequence of operations for the reader and engine from power supply turn-on.

Chapter 3 Original Exposure System

3.1 Basic Construction

Explains the fundamental construction, specifications, and major components of the original exposure system.

3.1.1 Specifications / Control / Function List

Lists specifications, controls, and functions related to the document exposure system.

3.1.2 Major Components

Identifies the main components that constitute the Document Exposure System.

3.2 Parts Replacement Procedure

Provides step-by-step instructions for replacing key components like the scanner unit and reader motor.

3.2.1 Scanner Unit

Details the procedure for preparing and removing the scanner unit.

3.2.2 Reader Motor

Provides steps for preparing and removing the flat bed motor (reader motor).

3.2.3 Contact Sensor

Outlines the procedure for removing the contact sensor.

Chapter 4 Original Feeding System

4.1 Basic Operation

Details the basic operational procedures for the ADF and DADF systems.

4.1.1 Basic Operation (ADF)

Explains the stream-reading operation of the Auto Document Feeder (ADF).

4.1.2 Basic Operation (DADF)

Describes the pickup, feed, and delivery operations for the Duplex Automatic Document Feeder (DADF).

4.1.3 Original Detection

Details the two types of original detection methods used in the equipment.

4.2 Detection Jams

Explains how jams are detected and the procedures for releasing them.

4.2.1 Jam Detection

Lists the conditions under which a paper jam is judged and the operation after detection.

4.3 ADF/DADF

Covers the removal procedures for ADF/DADF related parts like pickup rollers, motors, and separation pads.

4.3.1 Pick-up Roller

Provides instructions for removing the ADF and DADF pickup rollers.

4.3.2 ADF Motor

Details the preparation and removal procedures for the ADF motor.

4.3.3 Separation Pad

Outlines the procedures for removing the ADF and DADF separation pads.

Chapter 5 Laser Exposure

5.1 Overview/Configuration

Provides an overview of the laser scanner assembly and its configuration.

5.1.1 Overview

Explains the composition and operation of the laser scanner assembly.

5.2 Controlling the Laser Activation Timing

Details how the laser activation timing is controlled, including ON/OFF operations.

5.2.1 Laser ON / OFF Control

Describes the control mechanism for turning the laser diode ON or OFF.

5.3 Controlling the Intensity of Laser Light

Explains the Auto Photoelectric Current Control (APC) for managing laser light intensity.

5.3.1 Auto Photoelectric Current Control (APC)

Details the procedure for controlling laser current to maintain a specific target laser level.

5.4 Controlling the Laser Scanner Motor

Describes the control mechanisms for the laser scanner motor, including speed and fault detection.

5.4.1 Overview

Provides an overview of the control circuit for the scanner motor.

5.4.2 Scanner Motor Speed Control

Explains the process of controlling the scanner motor to rotate at a constant speed.

5.4.3 Detection of Fault of the Scanner Motor

Details how faults in the scanner motor are detected and reported.

5.5 Parts Replacement Procedure

Provides procedures for replacing the laser scanner unit.

5.5.1 Laser/Scanner Unit

Details the preparation and removal steps for the laser scanner unit.

Chapter 6 Image Formation

6.1 Overview/Configuration

Explains the configuration and print process of the image formation system.

6.1.1 Configuration

Describes the main parts composing the image forming system.

6.1.2 Print Process

Details the basic operation process for image formation by the printer.

6.2 Driving and Controlling the High-Voltage System

Details the generation and control of transfer charging bias for image transfer.

6.2.1 Generation of Transfer Charging Bias

Explains the generation and application of transfer charging bias.

6.3 Toner Cartridge

Covers the detection mechanism for the toner level in the cartridge.

6.3.1 Toner Level Detection

Describes how the toner sensor detects the remaining toner level.

6.4 Parts Replacement Procedure

Provides instructions for removing the transfer charging roller.

6.4.1 Transfer Charging Roller

Details the procedure for removing the transfer charging roller.

Chapter 7 Pickup and Feed System

7.1 Overview/Configuration

Describes the pickup and feeding system, including its components and operation.

7.1.1 Overview

Explains the pickup/feeding system and its components like motors, solenoids, and sensors.

7.2 Other Control

Explains other control mechanisms related to paper pickup and feeding operations.

7.2.1 Overview

Details the pickup/feed operation of the machine.

7.3 Detection Jams

Details various types of paper jams, their detection methods, and causes.

7.3.1 Jam Detection Outline

Explains the paper sensors used for jam detection and the process of judging a jam.

7.3.2 Delay Jams

Describes pickup and delivery delay jams and their detection criteria.

7.3.3 Stationary Jams

Details pickup and delivery stationary jams and their detection criteria.

7.3.4 Other Jams

Covers other types of jams such as door open, wrapping, and residual jams.

7.4 Duplex Unit

Explains the overview and operation of the duplexing unit for double-sided printing.

7.4.1 Overview

Describes the duplexing pick up operation performed by the main motor.

7.5 Parts Replacement Procedure

Provides procedures for replacing parts like the main motor, separation pad, and pickup roller.

7.5.1 Main Motor

Details the preparation and removal procedures for the main motor.

7.5.2 Separation Pad

Outlines the preparation and removal procedures for the separation pad.

7.5.3 Pickup Roller

Provides instructions for removing the pickup roller.

Chapter 8 Fixing System

8.1 Overview/Configuration

Describes the configuration and specifications of the fixing unit.

8.1.1 Specification/Control/Function List

Lists specifications, controls, and functions related to the fixing unit.

8.1.2 Overview

Explains the components and operation of the fixing unit.

8.2 Various Control Mechanisms

Details control mechanisms for the fixing unit, including temperature control and fixing modes.

8.2.1 Controlling the Temperature of the Fixing Unit

Explains how the temperature of the fixing heater is controlled.

8.3 Protection Function

Explains the protection functions implemented to prevent fixing heater runaway.

8.3.1 Protection Function

Details the three protection functions: CPU, safety circuit, and temperature fuse.

8.4 Parts Replacement Procedure

Provides procedures for replacing the fixing unit and fixing film unit.

8.4.1 Fixing Unit

Details the preparation and removal steps for the fixing assembly.

8.4.2 Fixing Film Unit

Outlines the preparation and removal procedures for the fixing film unit.

Chapter 9 External and Controls

9.1 Control Panel

Outlines the structure and control of the machine's operation panel.

9.1.1 Outline

Describes the components of the machine's control panel and its control system.

9.2 Power Supply

Details the power supply route and protection functions within the machine.

9.2.1 Power Supply

Explains the power supply route of the machine.

9.2.2 Protection Function

Describes the protecting function for overcurrent/overvoltage in the power supply PCB.

9.3 Parts Replacement Procedure

Provides procedures for removing external covers and internal PCBs.

9.3.1 Front Cover

Details the steps for removing the front cover.

9.3.2 Rear Cover

Outlines the preparation and removal procedures for the rear cover.

9.3.3 Right Cover

Provides instructions for removing the right cover.

9.3.4 Left Cover

Details the procedure for removing the left cover.

9.3.5 Upper Cover

Outlines the preparation and removal procedures for the upper cover.

9.3.6 Cartridge Cover

Provides instructions for removing the printer cover (cartridge cover).

9.3.7 Operation Panel Unit

Details the procedure for removing the control panel unit.

9.3.8 SCNT Board

Outlines the procedure for removing the SCNT PCB, including data output.

9.3.9 DCNT Board

Details the preparation and removal procedures for the DCNT PCB.

9.3.10 Power Supply PCB

Outlines the preparation and removal procedures for the power supply PCB.

9.3.11 High-voltage Power Supply Board

Details the preparation and removal procedures for the high voltage PCB.

Chapter 10 Maintenance and Inspection

10.1 Periodically Replaced Parts

States that there are no periodically replaced parts for this machine.

10.1.1 Periodically Replaced Parts

Confirms the absence of periodically replaced parts.

10.2 Periodical Service

States that there are no specific periodical service items for this machine.

10.2.1 Periodically Service Items

Confirms the absence of specific periodical service items.

10.3 Cleaning

Details cleaning items, timing, and methods for various parts of the machine.

10.3.1 Cleaning Items

Lists the items requiring cleaning and the timing for each.

10.3.2 Cleaning Method (External Covers)

Provides instructions for cleaning the external covers of the machine.

10.3.3 Cleaning Method (Reader Unit)

Details the cleaning methods for various parts of the reader unit.

10.3.4 Cleaning Method (Pressure Roller)

Explains the procedure for cleaning the pressure roller.

Chapter 11 Measurement and Adjustments

11.1 Basic Adjustments

Covers essential adjustments for paper margins, reading alignment, and print positioning.

11.1.1 Paper Margin Adjustment

Details how to adjust paper margins for various functions and paper types.

11.1.2 Reading Adjustment

Explains how to adjust reading start positions for horizontal and vertical scanning.

11.1.3 Print Adjustment

Provides instructions for adjusting print positioning for different paper types and trays.

Chapter 12 Correcting Faulty Images

12.1 Outline of Electrical Components

Lists electrical components, including solenoids, motors, sensors, and PCBs, with their locations.

12.1.1 Clutch/Solenoid/Motor/Fan

Lists the solenoids and motors used in the machine.

12.1.2 Sensor

Lists all sensors used in the machine and their functions.

12.1.3 PCBs

Lists the Printed Circuit Boards (PCBs) used in the machine.

Chapter 13 Error Code

13.1 Error Code

Explains the purpose of error codes and lists system, scanner, printer, and communication error codes with causes and remedies.

13.1.1 Error Code Outline

Describes the function of error codes in indicating machine faults.

13.1.2 Error Code

Lists various error codes, their major causes, and recommended remedies.

Chapter 14 Service Mode

14.1 Outline

Introduces the service mode, including setting service data and activating the mode.

14.1.1 Setting Service Data

Explains the types of service data items available in Service Mode.

14.1.2 How to Activate Service Mode

Provides a flowchart for activating the Service Mode.

14.1.3 Service Data Menu

Displays the structure of the Service Data Menu, including country/region settings and function parameters.

14.2 Service Soft Switch Settings (SSSW)

Details various soft switch settings (SSSW) and their functions, including bit elaborations.

14.2.1 Outline

Explains the structure of Soft Switch Settings (SSSW).

14.2.2 SSSW-SW02:

Lists functions and elaborates on bits 2, 3, and 5 for SSSW-SW02.

14.2.3 SSSW-SW04

Lists functions and elaborates on bit 8 for SSSW-SW04.

14.2.4 SSSW-SW10

Lists functions and elaborates on bits 1 and 2 for SSSW-SW10.

14.2.5 SSSW-SW16

Lists functions for SSSW-SW16.

14.2.6 SSSW-SW20

Lists functions and elaborates on bits 6, 7, and 8 for SSSW-SW20.

14.2.7 SSSW-SW21

Lists functions and elaborates on bit 4 for SSSW-SW21.

14.2.8 SSSW-SW23

Lists functions and elaborates on bits 5, 6, 7, and 8 for SSSW-SW23.

14.2.9 SSSW-SW30

Lists functions and elaborates on bits 7 and 8 for SSSW-SW30.

14.2.10 SSSW-SW37

Lists functions and elaborates on bits 1 to 6 for SSSW-SW37.

14.2.11 SSSW-SW39

Lists functions and elaborates on bit 7 and 8 for SSSW-SW39.

14.2.12 SSSW-SW51

Lists functions and elaborates on bits 3 and 4 for SSSW-SW51.

14.2.13 SSSW-SW54

Lists functions and elaborates on bits 6 and 7 for SSSW-SW54.

14.3 Test Mode (TEST)

Explains how to operate test modes, including print test patterns and hardware tests.

14.3.1 Overview

Provides an outline of the test mode operations.

14.3.2 Faculty Test

Details tests for print patterns, sensors, and keys.

Chapter 15 Service Tools

15.1 Service Tools

Lists service tools, including solvents and lubricants, with their purpose and usage.

15.1.1 Solvents / Lubricants Table

Provides a table of solvents and lubricants used for maintenance.

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