Canon BJC-8500 User Manual
Page 9
Page
5 - 2
2. SERVICE TOOLS
5 - 2
2.1 List of Tools
5 - 3
3. APPLYING GREASE
5 - 6
4. DISASSEMBLY/ASSEMBLY
5 - 6
4.1 About Disassembly/Assembly
5 - 6
4.2 Precautions for Disassembly/Assembly
5 - 6
4.2.1 Unlocking the carriage
5 - 7
4.2.2 Disassembly prohibited parts
5 - 8
4.2.3 Purge unit tubes
5 - 8
4.2.4 Screw fastening of idle pulley ass'y
5 - 9
4.3 Logic Board Replacement
5 - 9
4.3.1 Except for EEPROM replacement
5 - 9
4.3.2 EEPROM replacement
5 -10
4.4 Waste Ink Absorber Replacement
5 -11
5. ADJUSTMENT
5 -11
5.1 Adjustment Locations
5 -11
5.1.1 EEPROM (IC501) and waste ink absorber
5 -11
5.1.2 Adjusting the printing position of BJ cartridges
5 -11
5.1.3 Carriage belt tension adjustment
5 -12
6. TROUBLESHOOTING
5 -12
6.1 Overview of Troubleshooting
5 -12
6.1.1 Definition
5 -12
6.1.2 Precautions for troubleshooting
5 -13
6.2 Error Condition Diagnosis
5 -13
6.2.1 Diagnosis flowchart
5 -16
6.2.2 Error recovery
5 -32
7. CONNECTOR POSITION & SIGNAL ASSIGNMENT
5 -32
7.1 Logic Board
5 -38
7.2 Carriage Board
5 -42
7.3 Panel Board
5 -42
7.4 Carriage Driver Board
5 -43
7.5 Upper Cassette Board
5 -44
7.6 Lower Cassette Board 1
5 -45
7.7 Lower Cassette Board 2
5 -46
7.8 Fan Board
5 -47
7.9 Power Supply Unit
5 -48
8. CIRCUIT DIAGRAMS
5 -48
8.1 Parts Layout
5 -48
8.1.1 Logic board
5 -50
8.1.2 Carriage board
5 -51
8.1.3 Panel board
5 -53
8.2 Circuit Diagrams
5 -53
8.2.1 Logic board
5 -65
8.2.2 Carriage board
5 -68
8.2.3 Carriage driver board
5 -69
8.2.4 Ink sensor/Fan board
5 -70
8.2.5 Panel board
5 -71
8.2.6 Upper cassette board
5 -72
8.2.7 Lower cassette board
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