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BJC-4300
SERVICE
MANUAL
Canon


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Application
This manual has been issued by Canon Inc. for qualified persons to learn technical theory,
installation, maintenance, and repair of products. This manual covers all localities where the
are sold. For this reason, there may be information in this manual that does not apply to
locality.
Corrections
This
manual could include technical inaccuracies or typographical errors due to improvements or
changes in the products. When changes occur in applicable products or in the content of this
manual. Canon
release technical information as the need arises. In the event of major changes
in the contents of this manual over a long
short period, Canon will issue a new editions of this
manual.
The
following paragraph does not apply to any countries where such
are
inconsistent with local law.
Trademarks
The product names and company names described in this manual are the registered trademarks of
the individual companies.
Copyright
This manual is copyrighted with all rights reserved. Under the copyright laws, this manual may not
be copied, reproduced or translated into another language. in whole or in part, without the written
consent of Canon Inc., except in the case of internal business use.
Copyright
1997 by Canon inc.
CANON INC.
BJ Products Technical Support Dept
16-1, Shimonoge
Takatsu-ku, Kawasaki-shi, Kanagawa 213, Japan
This manual was produced on an Apple
Power Mac
personal computer and
Apple
laser beam printer: final pages were printed on
5300
with
RIP. All graphics were produced with
All documents and all page layouts were created with


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This manual is divided into four sections, and contains information required for
servicing the unit.
Safety and Precautions
This section tells you how to service the unit safely. It is very important, so please
read it.
Part 2: Product Specifications
This section outlines and specification.
Part 3: Operating Instructions
This section explains how to operate the unit properly. Information required about
installation and service made.
Part 4: Technical Reference
This section outlines the way the unit operates so you can understand it technically.
5: Maintenance
This section explains how to maintain the unit. Descriptions of assembly/disassembly,
adjustment for assembly, troubleshooting procedures, and wiring/circuit diagrams
are given.
Procedures for assembly/disassembly are not given in this manual.
See the illustrations in the separate Parts Catalog.


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Part 1: Safety and Precautions
1. SAFETY PRECAUTIONS
1
Moving Parts
1.2 Ink Stains
1.2.1 Ink path
1.2.2 Ink mist
1.3 BJ Cartridge Heat-Up
2. MACHINE PRECAUTIONS
2.1 Handling BJ Cartridges
2.1
Unpacking the BJ cartridge
2.1.2 Preventing clogged nozzles
2.1.3 Power on/off
2.1.4 When not using the printer
2.1.5 Ink electroconductivity
2.2 Handling Ink Cartridges
2.2.1 Unpacking the ink cartridge
2.2.2 Preventing clogging
2.3 Printer Precautions
2.3.1 Spur deformation prevention
2.3.2 Static electricity damage prevention
2.3.3 Ink leakage prevention
2.3.4 Waste ink adhesion prevention
2.4 Scanner Precautions
2.4.1 Scanner Cartridge Protection
2.4.2 Scanning Precautions
3. PRECAUTIONS FOR SERVICE
3.1 EEPROM Data Precautions
3.2 Static Electricity Precautions
3.3 Disassembly and Reassembly Precautions
3.4 Self-Diagnosis
Part 2: Product Specifications
1. PRODUCT OUTLINE
1.1 Product Outline
1.2 Features
1.3 BJ Cartridge
1.4
1.5
1.6
1.3.1 Color BJ cartridge (Multi drop)
1.3.2 Black BJ cartridge
1.3.3 Photo BJ cartridge (Multi drop)
BJ Cartridge Container
AC Adapter
Consumables
1.7
1.6.1 BJ cartridges (Color, Black, Photo)
1.6.2 Ink cartridge (Color BJ cartridge)
Option
1.7.1 Color image scanner cartridge
1.7.2 Scanning holder
1.7.3 White calibration sheet
2. SPECIFICATIONS
2.1 Printer Specifications
2.2 Scanner Cartridge Specifications (Option)


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2.3 Paper Specifications
2.3.1 Paper size
2.3.2 Paper type (Recommended)
2.3.3 Print paper
2.3.4 Printing range
2.4 Interface Specifications
2.5 Character Code Tables
2.5.1 BJ mode
2.5.2 EPSON mode
Part 3: Operating instructions
PRINTER SETUP
Equipment Check
1.2 Printer Dimensions
1.3 Setup Procedure
1.3.1 Connecting the interface cable
1.3.2 Connecting the AC adapter
1.3.3 Turning on the printer
1.3.4 Installing the cartridge
1.3.5 Replacing the ink cartridge
1.3.6 BJ cartridge container
1.4 Turning the Printer On/Off
1.4.1 Turning the printer on
1.4.2 Turning the printer off
1.5 Paper Settings
1.6 Banner Print
1.7 Name of the Parts and Their Functions
2. TRANSPORTING THE PRINTER
2.1 Carrying the Printer
2.2 Transporting the Printer
3. PRINTER SERVICING FUNCTIONS
3.1
3.2
3.3
3.4
3.5
3.6
Error Indications
Function Settings
3.2.1 Setting the default setting mode
3.2.2 BJ setup utility program
Cleaning the BJ Cartridge
Self-Test Printout
3.4.1 Demonstration print
3.4.2 Printer status information print
3.4.3 ASCII character print (ripple pattern)
3.4.4 Nozzle check pattern
Hexadecimal Dump Test Printout
EEPROM Reset
3.6.1 EEPROM Reset
3.6.2 Printing the EEPROM data
Part 4: Technical Reference
1. OVERVIEW
1
Printer Diagram
1.2 Initial Flowchart
1.3 Print Signal Flow
1.4 Print Drive
1.4.1 Printing drive control