Canon BJC 6000 - Color Inkjet Printer User manual

QY8-1361-000
JAN. 1999
COPYRIGHT  1999 CANON INC. CANON BJC-6000 SE 0199 0.30-0 PRINTED IN JAPAN (IMPRIME AU JAPON)
REVISION 0

0199 SE 0.30-0

Target Readers
This manual is published by Canon Inc. for qualified persons and contains the necessary technical
information for technical theory, installation, maintenance, and repair of products. This manual
covers all localities where the products are sold. For this reason, it may contain information that does
not apply to your locality.
Revisions
This manual may include technical inaccuracies or typographical errors due to improvements or
changes in the products. When amendments are made to the content of this manual, Canon will issue
technical information as the need arises. In the event of major alterations to the content of this manual
over a long or short period, Canon will publish a revised version of the manual.
The following paragraph does not apply to any countries where such provisions are
inconsistent with local law.
Trademarks
The product names and company names appearing in this manual are the registered trademarks or
trademarks of the individual companies.
Copyright
This manual is copyrighted and all rights reserved. Under the copyright laws, this manual may not
be copied, reproduced, or translated into other languages, in whole or in part, without the express
written consent of Canon Inc. except in the case of internal business use.
Copyright 1999 by Canon Inc.
CANON INC.
BJ Products Quality Support Dept.
16-1, Shimonoge 3-chome, Takatsu-ku, Kawasaki-shi, Kanagawa 213, Japan
This manual was produced on an Apple MacintoshPower Mac 9600/233 personal computer and
Apple LaserWriterII NTX-J laser beam printer; final pages were printed on Varityper5300 with
4000-J RIP. A Canon mo-5001S Magneto-Optical Storage Subsystem with mo-502M Magneto-Optical
Storage Disk Cartridge and mo-IF2 interface kit were used for storing large volumes of page layout and
graphic data for this manual.
All graphics were produced with MACROMEDIA FREEHAND7.0J.
All documents and all page layouts were created with QuarkXPress3.3J.

I. ABOUT THIS MANUAL
This manual is divided into five parts containing the information required for servicing
the BJC-6000 printer.
Part 1: Safety and Precautions
This part contains information on how to service the unit safety. It is very important,
and must be read.
Part 2: Product Specifications
This part outlines the product and its specifications.
Part 3: Operating Instructions
This part explains how to operate the unit properly, how it is installed, and how to
use the service mode.
Part 4: Technical Reference
This part outlines the unit operation giving a technically.
Part 5: Maintenance
This part explains maintenance of the unit. It includes details of disassembly / assembly,
adjustments required when assembling, troubleshooting procedures, and wiring /
circuit diagrams, etc.
This manual does not contain complete information required for
disassembling and assembling the BJC-6000 printer. Please also refer to
the separate Parts Catalog.
REF.
I

II. TABLE OF CONTENTS
Page Part 1: SAFETY AND PRECAUTIONS
1 - 1 1. SAFETY PRECAUTIONS
1 - 1 1.1 Moving Parts
1 - 2 1.2 Ink Stains
1 - 2 1.2.1 Ink paths
1 - 3 1.2.2 Ink mist
1 - 4 1.3 Live Electrical Parts
1 - 5 2. MACHINE PRECAUTIONS
1 - 5 2.1 BJ Cartridges
1 - 5 2.1.1 BJ cartridge handling
1 - 6 2.1.2 Automatic capping
1 - 6 2.1.3 When not using the printer
1 - 6 2.1.4 Ink's electroconductivity
1 - 7 2.2 Ink Tanks
1 - 7 2.2.1 Unpacking the ink tank
1 - 7 2.2.2 Ink tank handling
1 - 8 2.3 Printer Handling
1 - 8 2.3.1 Spurs
1 - 9 2.3.2 Damage due to static electricity
1 -10 2.3.3 Ink leakage prevention
1 -11 3. NOTES ON SERVICING
1 -11 3.1 EEPROM Data
1 -12 3.2 Static Electricity
1 -13 3.3 Disassembly and Reassembly
1 -14 3.4 Self Diagnosis
Part 2: PRODUCT SPECIFICATIONS
2 - 1 1. PRODUCT OUTLINE
2 - 1 1.1 Outline
2 - 2 1.2 Features
2 - 3 1.3 BJ Cartridge
2 - 3 1.3.1 Black BJ cartridge
2 - 3 1.3.2 Color BJ cartridge
2 - 4 1.3.3 Photo BJ cartridge
2 - 4 1.4 BJ Cartridge Container
2 - 5 1.5 Consumables
2 - 5 1.5.1 Black, color, and photo BJ cartridges
2 - 5 1.5.2 Ink tanks
2 - 6 2. SPECIFICATIONS
2 - 6 2.1 General Specifications
2 - 8 2.2 Paper Specifications
2 -10 2.3 Interface Specifications
Part 3: OPERATING INSTRUCTIONS
3 - 1 1. PRINTER SETUP
3 - 1 1.1 Unpacking
3 - 2 1.2 Installation Location
3 - 3 1.3 Installation
3 - 3 1.3.1 Connecting the interface cable
3 - 3 1.3.2 Connecting the power cord
3 - 3 1.3.3 Installing the BJ cartridges
II

Page
3 - 9 1.3.4 Aligning the print heads
3 -10 1.4 Names of Parts and Their Functions
3 -11 2. TRANSPORTING THE PRINTER
3 -11 2.1 Transporting the Printer
3 -12 3. PRINTER SERVICE FUNCTIONS
3 -12 3.1 Error Indications
3 -13 3.2 Description of Error Indications
3 -14 3.3 BJ Status Monitor
3 -14 3.3.1 Main functions of the BJ status monitor
3 -14 3.3.2 Items displayed on the BJ status monitor
3 -15 3.4 Function Settings
3 -15 3.4.1 Function settings using the printer driver
3 -16 3.5 Off-Line Operations
3 -16 3.5.1 Cleaning
3 -16 3.5.2 Nozzle check pattern printing
3 -17 3.5.3 Roller cleaning
3 -18 3.6 Service Mode
3 -18 3.6.1 Service mode operations
3 -19 3.6.2 Service/factory test print
3 -20 3.6.3 EEPROM information print
3 -21 3.6.4 Resetting EEPROM
3 -21 3.6.5 Model setting
3 -21 3.6.6 Automatic head position adjustment
Part 4: TECHNICAL REFERENCE
4 - 1 1. OVERVIEW
4 - 1 1.1 Printer Block Diagram
4 - 2 1.2 Power On Sequence Flowchart
4 - 3 1.3 Flow of Print Signals
4 - 4 1.4 Print Driving
4 - 4 1.4.1 Print drive control
4 - 6 1.4.2 Print drive method
4 - 9 1.5 Power-Off Sequence Flowchart
4 -10 2. FIRMWARE
4 -10 2.1 Interface
4 -10 2.1.1 Compatible mode
4 -11 2.1.2 Nibble mode
4 -12 2.1.3 ECP mode
4 -13 2.2 Print Control
4 -13 2.2.1 Print mode
4 -13 2.2.2 Multi-drop print
4 -13 2.2.3 Photo-print
4 -13 2.2.4 Automatic switching control of printing nozzles
4 -15 2.3 Automatic Printing Position Alignment Function
4 -16 2.4 Pause Between Scanning
4 -16 2.5 Pause Between Pages
4 -16 2.6 Smear Control
4 -16 2.7 Auto Power ON/OFF
4 -16 2.8 Head Overheat Protection
4 -17 3. PRINTER'S MECHANICAL SYSTEM
4 -17 3.1 Overview
4 -17 3.1.1 BJ cartridge unit
4 -17 3.1.2 Carriage unit
III

Page
4 -18 3.1.3 Purge unit
4 -18 3.1.4 Paper feed unit
4 -19 3.2 BJ Cartridge
4 -19 3.2.1 Construction of the Black BJ cartridge
4 -20 3.2.2 Construction of the Color/Photo BJ cartridge
4 -21 3.2.3 Construction of the bubble jet head unit
4 -25 3.3 Purge Unit
4 -25 3.3.1 Function of the purge unit
4 -26 3.3.2 Construction of the purge unit
4 -28 3.4 Paper Feed Unit
4 -28 3.4.1 Functions of the paper feed unit
4 -30 3.4.2 Construction of the paper feed unit
4 -32 3.5 Carriage Unit
4 -32 3.5.1 Functions of carriage unit
4 -33 3.5.2 Construction of the carriage unit
4 -36 4 PRINTER'S ELECTRICAL SYSTEM
4 -36 4.1 Overview
4 -37 4.2 Control Unit
4 -37 4.2.1 Control unit block diagram
4 -38 4.2.2 Logic Components
4 -41 4.3 Power Supply Unit
4 -41 4.3.1 Power Supply Unit Block Diagram
4 -41 4.3.2 Construction of Power Supply Unit
4 -42 5. DETECTION FUNCTIONS
4 -42 5.1 Detection with Sensors
4 -42 5.1.1 Home position sensor
4 -42 5.1.2 Paper end sensor
4 -42 5.1.3 Print position sensor
4 -43 5.1.4 Ink sensor
4 -43 5.1.5 Cover sensor
4 -43 5.1.6 Pump sensor
4 -43 5.1.7 Printer temperature sensor (TH201)
4 -44 5.1.8 Head temperature sensor
4 -44 5.2 Other Detection Functions
4 -44 5.2.1 Waste ink amount detection
4 -44 5.2.2 BJ cartridge detection
Part 5: MAINTENANCE
5 - 1 1. MAINTENANCE
5 - 1 1.1 Parts for Periodic Replacement
5 - 1 1.2 List of Consumables
5 - 1 1.3 List of Periodic Maintenance
5 - 2 2. SERVICE TOOLS
5 - 2 2.1 List of Tools
5 - 3 3. APPLYING GREASE
5 - 4 4. DISASSEMBLY AND REASSEMBLY
5 - 4 4.1 Disassembly and Reassembly
5 - 4 4.2 Notes on Disassembly and Reassembly
5 - 4 4.2.1 Unlocking the carriage
5 - 5 4.2.2 Removing the printer unit
5 - 6 4.2.3 Removing the ASF unit
5 - 6 4.2.4 Removing the adjustable bearings supporting the carriage shaft
5 - 7 4.2.5 Paper feed gears
5 - 8 5. ADJUSTMENTS AND SETTINGS
5 - 8 5.1 Adjustments and Settings
IV

5 - 8 5.1.1 EEPROM setting
5 - 8 5.1.2 Carriage belt tension adjustment
5 - 8 5.1.3 ASF gear position adjustment
5 - 8 5.1.4 Head gap adjustment
5 - 9 5.2 Adjustment/Setting Procedures
5 - 9 5.2.1 EEPROM setting
5 - 9 5.2.2 Carriage belt tension adjustment
5 -10 5.2.3 ASF gear position adjustment
5 -11 5.2.4 Head gap adjustment
5 -13 6. TROUBLESHOOTING
5 -13 6.1 Troubleshooting Overview
5 -13 6.1.1 Overview
5 -13 6.1.2 Notes on troubleshooting
5 -15 6.2 Diagnosis
5 -15 6.2.1 Initial flowchart
5 -18 6.2.2 Action
5 -36 7. CONNECTOR POSITIONS AND PIN ASS
5 -36 7.1 Control Board
5 -40 7.2 Carriage Board
5 -43 7.3 BJ Cartridge
5 -44 7.4 AC adapter
5 -44 7.5 DC power supply cable
5 -45 7.6 Carriage Motor
5 -45 7.7 Paper Feed Motor
5 -46 7.8 Ink Sensor
5 -46 7.9 Print Position Sensor
5 -46 7.10Pump Sensor
5 -47 8. CIRCUIT DIAGRAMS
5 -47 8.1 Parts Layout
5 -47 8.1.1 Control board
5 -48 8.1.2 Carriage board
5 -49 8.2 Circuit Diagrams
V

III. ILLUSTRATION INDEX
Page Part 1: SAFETY AND PRECAUTIONS
1 - 1 Figure 1- 1 The Printer's Moving Parts
1 - 2 Figure 1- 2 Ink Paths
1 - 3 Figure 1- 3 Ink Mist
1 - 4 Figure 1- 4 Live Electrical Parts
1 - 5 Figure 1- 5 BJ Cartridges
1 - 7 Figure 1- 6 Unpacking the Ink Tank
1 - 7 Figure 1- 7 Installing the Ink Tank
1 - 8 Figure 1- 8 Spurs
1 - 9 Figure 1- 9 Damage Due to Static Electricity
1 -10 Figure 1-10 Capping Position
1 -12 Figure 1-11 Control Board and Other Electrical Components
1 -13 Figure 1-12 How to Disengage a Plastic Hook
Part 2: PRODUCT SPECIFICATIONS
2 - 1 Figure 2- 1 Printer Appearance
2 - 3 Figure 2- 2 Black BJ Cartridge
2 - 3 Figure 2- 3 Color BJ Cartridge
2 - 4 Figure 2- 4 Photo BJ Cartridge
2 - 4 Figure 2- 5 BJ Cartridge Container
2 - 5 Figure 2- 6 BJ Cartridges
2 - 5 Figure 2- 7 Ink Tanks
2 - 9 Figure 2- 8 Printable Area
2 -15 Figure 2- 9 Timing Chart (Compatible mode)
2 -16 Figure 2-10 Timing Chart (Nibble mode)
2 -16 Figure 2- 11 Timing Chart (ECP mode)
Part 3: OPERATING INSTRUCTIONS
3 - 1 Figure 3- 1 Packaging
3 - 2 Figure 3- 2 Printer Dimensions
3 - 3 Figure 3- 3 Connecting the Interface Cable
3 - 3 Figure 3- 4 Connecting the Power Cord
3 - 4 Figure 3- 5 Removing Head Cap and Tape from BJ Cartridge
3 - 5 Figure 3- 6 Installing BJ Cartridges
3 - 6 Figure 3- 7 Installing the Ink Tanks
3 - 7 Figure 3- 8 Replacing an Ink Tank
3 - 8 Figure 3- 9 Cartridge Container
3 - 9 Figure 3-10 Print Position Adjustment Pattern
3 -10 Figure 3-11 Names of Parts and Their Functions
3 -12 Figure 3-12 Operator Panel
3 -14 Figure 3- 13 BJ Status Monitor (Sample)
3 -15 Figure 3- 14 Printer Driver Utility (Sample)
3 -17 Figure 3-15 Nozzle Check Pattern Print (Sample for Black/Color Cartridge)
3 -19 Figure 3- 16 Service/Factory Test Print
3 -20 Figure 3-17 EEPROM Information Print (Sample)
Part 4: TECHNICAL REFERENCE
4 - 1 Figure 4- 1 Printer Block Diagram
4 - 2 Figure 4- 2 Initial Sequence Flowchart
4 - 3 Figure 4- 3 Flow of Print Signals
4 - 4 Figure 4- 4 Printing Sequence (Black BJ cartridge, HQ mode)
4 - 6 Figure 4- 5 Print Drive Method (Multi-drop, forward direction)
VI

Page
4 - 7 Figure 4- 6 Print Drive Method (1440 x 720 dpi, forward direction)
4 - 8 Figure 4- 7 Print Drive Method (Reverse direction)
4 - 9 Figure 4- 8 Power-Off Sequence Flowchart
4 -10 Figure 4- 9 Interfacing Timing (Compatible Mode)
4 -11 Figure 4-10 Interface Timing (Nibble Mode)
4 -12 Figure 4-11 Interface Timing (ECP mode, reverse transfer)
4 -15 Figure 4-12 Automatic Printing Position Alignment
4 -17 Figure 4- 13 Printer's Mechanical System
4 -19 Figure 4- 14 Black BJ Cartridge
4 -20 Figure 4-15 Color/Photo BJ Cartridge
4 -21 Figure 4- 16 Bubble Jet Nozzle (part)
4 -22 Figure 4- 17 Nozzle Arrangement
4 -22 Figure 4-18 Signal Contacts
4 -25 Figure 4- 19 Purge Unit
4 -26 Figure 4- 20 Purge Unit
4 -27 Figure 4-21 Pumping Operations
4 -28 Figure 4-22 Paper Feed Path
4 -29 Figure 4-23 Paper Thickness Adjustment Mechanism
4 -30 Figure 4-24 Paper Feed Unit
4 -32 Figure 4-25 Carriage Unit
4 -33 Figure 4-26 Carriage Unit
4 -34 Figure 4-27 BJ Cartridge Maintenance
4 -35 Figure 4- 28 Drive Switching Unit
4 -35 Figure 4-29 Operation of the Drive Switching Unit
4 -36 Figure 4- 30 Printer's Electrical System
4 -37 Figure 4- 31 Control Unit Block Diagram
4 -37 Figure 4- 32 Control Unit Function Diagram
4 -38 Figure 4- 33 Control Board
4 -41 Figure 4-34 Power Supply Unit Block Diagram
4 -42 Figure 4-35 Sensor Positions
4 -43 Figure 4-36 Ink Sensor
Part 5: MAINTENANCE
5 - 3 Figure 5- 1 Grease Points
5 - 4 Figure 5- 2 Unlocking the Carriage
5 - 5 Figure 5- 3 Removing the Printer Unit
5 - 6 Figure 5- 4 Removing the ASF Unit
5 - 6 Figure 5- 5 Adjustable Bearings Supporting the Carriage Shaft
5 - 7 Figure 5- 6 Feed Gear Unit Precautions
5 - 9 Figure 5- 7 Carriage Belt Tension Adjustment
5 -10 Figure 5- 8 ASF Gear Position Adjustment
5 -11 Figure 5- 9 Head Gap Adjustment (1)
5 -12 Figure 5-10 Head Gap Adjustment (2)
5 -36 Figure 5- 11 Control Board
5 -40 Figure 5-12 Carriage Board
5 -43 Figure 5-13 BJ Cartridge
5 -44 Figure 5-14 AC adapter
5 -44 Figure 5-15 DC Power Supply Cable
5 -45 Figure 5-16 Carriage Motor
5 -45 Figure 5-17 Paper Feed Motor
5 -46 Figure 5-18 Ink Sensor
5 -46 Figure 5-19 Print Position Sensor
5 -46 Figure 5-20 Pump Sensor
5 -47 Figure 5- 21 Control Board
5 -48 Figure 5-22 Carriage Board
VII

VIII
IV. TABLE INDEX
Page Part 3: OPERATING INSTRUCTIONS
3 -12 Table 3- 1 Error Indications
Part 4: TECHNICAL REFERENCE
4 -14 Table 4- 1 Print Mode List
4 -23 Table 4- 2 Signal Contacts

Part 1
SAFETY AND
PRECAUTIONS
Page
1 - 1 1. SAFETY PRECAUTIONS
1 - 1 1.1 Moving Parts
1 - 2 1.2 Ink Stains
1 - 4 1.3 Live Electrical Parts
1 - 5 2. MACHINE PRECAUTIONS
1 - 5 2.1 BJ Cartridges
1 - 7 2.2 Ink Tanks
1 - 8 2.3 Printer Handling
1 -11 3. NOTES ON SERVICING
1 -11 3.1 EEPROM Data
1 -12 3.2 Static Electricity
1 -13 3.3 Disassembly and Reassembly
1 -14 3.4 Self Diagnosis

1. SAFETY PRECAUTIONS
1.1 Moving Parts
Be careful not to get your fingers, hair, clothing, or accessories caught in the moving
parts of the printer.
The moving parts are driven either by the carriage motor or paper feed motor. The
carriage motor-related moving parts include the carriage, carriage belt, and carriage
ribbon-cable. The paper feed motor-related moving parts include the paper feed gears,
paper feed rollers, pinch rollers, eject roller gears, spurs, and pick-up rollers.
To prevent injuries, the printer will stop after moving the carriage to the cartridge
replacement position if the cover is opened.
1-1
BJC-6000
Part 1: Safety and Precautions
Carriage Ribbon Cable
Pressure Roller
Idler Pulley
Paper Feed Gear
Eject Roller Gear
Paper Feed Roller
Spur
Pick-up Roller
Carriage Belt
Carriage Motor
Figure 1-1 The Printer's Moving Parts

1.2 Ink Stains
1.2.1 Ink paths
Be careful not to touch the ink paths. Ink on hands could stain the printer, work
table, or clothes. The ink paths include the BJ cartridge ink tank outlet, the BJ
cartridge ink filters and nozzles, the maintenance jet receiving section, the head caps,
the wipers, and the waste ink absorber.
The ink is not harmful to the human body, but contains some organic
solvents:
The black ink contains glycerin 56-81-5 and diethylene glycol 111-46-6.
The yellow ink contains glycerin 56-81-5 and isopropyl alcohol 67-63-0.
The cyan, magenta, photo-cyan, photo-magenta and photo-black ink
contain glycerin 56-81-5, isopropyl alcohol 67-63-0, ethylene glycol 107-
21-1, and diethylene glycol 111-46-6.
Be careful not to get the ink into your mouth or eyes. If the ink gets into
your eyes, wash with plenty of water and consult a doctor. In case you
have swallowed a large amount of ink, consult a doctor immediately.
The ink contains dyes. If clothing is stained with the ink, the ink may not
be removed completely.
Part 1: Safety and Precautions
BJC-6000
1-2
Maintenance
Jet Receiving
Section
BJ Cartridges Wiper Head Cap
Waste Ink Absorber
Figure 1-2 Ink Paths
CAUTION

1.2.2 Ink mist
The BJ cartridge ejects ink onto the paper during printing. After the printer is used
for a long period or used heavily, part of the ink ejected from the nozzles, or ink mist
bouncing back from the paper could accumulate and contaminate the platen, front
cover, as well as the periphery of the purge unit. Carefully wipe off the ink mist with
a dampened soft cloth so that hands or clothing will not be stained by contaminated
parts during servicing.
1-3
BJC-6000
Part 1: Safety and Precautions
Front Cover
Platen
Figure 1-3 Ink Mist

1.3 Live Electrical Parts
When the printer is plugged into a wall outlet, the power supply unit of the printer is
live, even if the power is switched off with the POWER button. Be careful not to get an
electric shock or damage sensitive elements if you are checking a live printer with the
cover removed.
Part 1: Safety and Precautions
BJC-6000
1-4
Control Board
Figure 1-4 Live Electrical Parts

2. MACHINE PRECAUTIONS
2.1 BJ Cartridges
2.1.1 BJ cartridge handling
Do not unpack the BJ cartridge until you are ready to use it. Before installing the BJ
cartridge in the printer, carefully remove the head cap which protects the nozzles, the
protective tape, and the protective tank. To prevent the nozzles or other ink paths
from clogging, never touch or wipe the nozzles or other ink outlets with your bare
hands or tissue paper. After removing the head cap, the protective tape, and the
protective tank from a BJ cartridge, promptly install the cartridge in the printer or
store it in the cartridge container. Do not reuse head caps or protective tapes which
have been removed. The BJ cartridge must be installed in the printer or stored in the
cartridge container with its ink tanks installed. If the BJ cartridge is installed or
stored with its ink tanks removed, the nozzles could clog due to foreign matter or
dried ink. Do not attempt to disassemble or wash the BJ cartridge.
If a nozzle clogs, or ink fails to be fed normally, print quality degrades, and
typically a fine horizontal blank line appears in printed images. If cleaning
operations do not solve the problem, replace the BJ cartridge with a new
one.
1-5
BJC-6000
Part 1: Safety and Precautions
Protective Tape
Head Cap
Figure 1-5 BJ Cartridges
NOTE

2.1.2 Automatic capping
When the printer is turned off with the POWER button, it automatically caps the BJ
cartridge's nozzles to protect them as well as to prevent ink leakage. If the AC cable is
unplugged from a wall outlet before the printer is turned off with the POWER button,
the nozzles will not be automatically capped. In this case, plug in the AC cable again,
turn on the printer, and then turn it off with the POWER button. The nozzles will be
automatically capped.
If the nozzles are not capped, ink may dry out and clog the nozzles or leak
from the cartridge.
2.1.3 When not using the printer
The BJ cartridge may be either left installed in the printer or stored in the cartridge
container. This also applies when carrying, transporting, or storing the printer.
If the BJ cartridge is left in open air, out of the printer or cartridge
container, foreign matter or dried ink may clog the nozzles, resulting in
poor print quality.
2.1.4 Ink's electroconductivity
The ink in the BJ cartridge conducts electricity. If ink is spilt in the printer's
mechanical parts, use a dampened paper towel to wipe clean. If ink is spilt onto the
printer's electrical components, use tissue paper to wipe clean. If ink gets under an
IC chip on the control board and cannot be removed thoroughly, replace the control
board with a new one.
Never plug in the printer if its' electric circuitry is in contact with spilt ink.
Otherwise the electric circuitry could be damaged.
Part 1: Safety and Precautions
BJC-6000
1-6
CAUTION
CAUTION
CAUTION