Canon MP390 Service Manual

Canon MP390 Service Manual

The following rules apply throughout this Canon MP390 Service Manual:

  1. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with reference to the timing of operation.In the diagrams, represents the path of mechanical drive; where a signal name accompanies the symbol , the arrow indicates the direction of the electric signal. The expression "turn on the power" means flipping on the power switch, closing the front door, and closing the delivery unit door, which results in supplying the machine with power.
  2. In the digital circuits, '1'is used to indicate that the voltage level of a given signal is "High", while '0' is used to indicate "Low".(The voltage value, however, differs from circuit to circuit.) In addition, the asterisk (*) as in "DRMD*" indicates that the DRMD signal goes on when '0'. In practically all cases, the internal mechanisms of a microprocessor cannot be checked in the field. Therefore, the operations of the microprocessors used in the machines are not discussed: they are explained in terms of from sensors to the input of the DC controller PCB and from the output of the DC controller PCB to the loads. The descriptions in this Service Manual are subject to change without notice for product improvement or other purposes, and major changes will be communicated in the form of Service Information bulletins. All service persons are expected to have a good understanding of the contents of this Service Manual and all relevant Service Information bulletins and be able to identify and isolate faults in the machine."

Canon MP390 Features Overview

Picture Quality Color Printer
High quality printing can be accomplished with the Canon Bubble Jet (BJ) method using the maximum 4800 dpi X 1200 dpi resolution. Various media can be printed at high speed that is maximum 12 pages/minute in black and white or pages/minute in color.

Convenient ASF
Up to 100 letter, leagl and A4 size sheets, 30 OHP films, and 10 envelops can be set in the ASF. Copy Function This machine can be used as a copier which achieves the recording resolution of 600 dpi X 600 dpi for black and white copying or 1200 dpi X 1200 dpi for color copying.

Full Color & 256 Gradation Grayscale Scanner
Using MP Toolbox or MP Drivers (ScanGear and WIA driver), full color and 256-gradation grayscale images with
a quality of 25-9600 dpi can be read into a computer. Photo Printing (MP370, MP390 only) By connecting this machine to a digital camera with USB cable, photos can be printed out directly from the digital camera (without using a computer). Moreover, photos can be printed out from Memory Card by inserting Memory Card into a card slot of the machine.

Canon MP390 Table of Contents

Chapter 1 Canon MP390 General Description

1.1 Features
1.1.1 Overview
1.2 Specifications
1.2.1 General Specifications
1.2.2 Scanner Specifications
1.2.3 Printer Specifications
1.2.4 Copy Specifications
1.2.5 Communication Specifications
1.2.6 Color Communication Specification
1.2.7 Function
1.3 Overview
1.3.1 External View
1.3.2 Operation Panel
1.4 Consumables
1.4.1 Ink tanks

Chapter 2 Canon MP390 Technical Reference

2.1 Component Layout
2.1.1 Printer Mechanical Section
2.1.2 Electrical Layout
2.1.3 Sensor Layout
2.2 Scanner Mechanism
2.2.1 Scanning Section Layout
2.3 Printer Section
2.3.1 Printer Mechanical Section
2.3.2 Carriage Section
2.3.3 Purge Section
2.3.4 Paper Feed Section
2.3.5 Ink Sensor
2.3.6 Cleaning Mode and Suction Amount

Chapter 3 Canon MP390 Disassembly and Assembly

3.1 Attention to be Paid During Assembly/Disassembly
3.1.1 Safety Cautions
3.1.2 General Cautions
3.1.3 Product-inherent Cautions
3.1.4 Caution when replacing the SPCNT board
3.1.5 Shipping the Main Unit
3.2 Assembly and Disassembly
3.2.1 Disassembly/Assembly
3.2.2 Basic Disassembly
3.2.3 Operation Panel Unit
3.2.4 Scanner Unit
3.2.5 NCU Board, Modular Board
3.2.6 SPCNT Board
3.2.7 Modem Board
3.2.8 Print & ASF Unit
3.2.9 Power Supply Unit

Chapter 4 Canon MP390 Maintenance

4.1 Maintenance
4.1.1 Consumables
4.1.2 Cleaning
4.1.3 Periodic Inspection
4.1.4 Periodic Replacement Parts
4.1.5 Adjustment Items
4.1.6 General Tools
4.1.7 Special Tools
4.2 How to Clean Parts
4.2.1 How to Clean Parts
4.2.2 Exterior
4.2.3 Scanning Unit
4.2.4 Printer
4.3 Service Switches
4.3.1 Hardware Switches
4.3.2 Service Data Setting
4.3.3 Service Data Flowchart
4.4 New SSSWs/Parameters Added to This Model
4.4.1 Service Data
4.5 User Report Output Functions
4.5.1 User report output functions
4.6 Wiring Diagram
4.6.1 Wiring Diagram

Chapter 5 Canon MP390 Troubleshooting

5.1 Troubleshooting Index
5.1.1 Troubleshooting Index
5.2 Errors Shown on the Display
5.2.1 User Error Message
5.3.2 New Error Codes and Recovery methods
5.4 Errors not Shown on the Display
5.4.1 General Errors
5.4.2 Printing problem
5.4.3 Scanning Problems
5.4.4 Memory Card Problem
5.5 Test Mode Function Problems
5.5.1 Faulty Operation Panel Test
5.5.2 Faulty DRAM Test
5.5.3 Faulty Sensor Test
5.6 Processing Communication Problems
5.6.1 Initial identification of problems
5.6.2 Procedures for processing communication problems
5.7 Test Functions
5.7.1 Test Mode Overviw
5.7.2 Test Mode Flowchart
5.7.3 DRAM Tests
5.7.4 PRINT Tests
5.7.5 FACULTY Tests
5.7.6 PRINTER Tests
5.7.7 MODEM, NCU Tests

Chapter 6 Appendix

6.1 Main Body
6.1.1 Canon MP390 Installation
6.1.2 Checking Operation
6.2 User Data Flow
6.2.1 User Mode Settings
6.2.2 Fax Mode Settings

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Title : Canon MP390 Service Manual
Format : PDF
Pages : 147 Pages
Language : English
File Size : 4 MB


Canon MP390 Service Manual

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