Page
4 -22 3.5.1 Outline of the paper feed
4 -23 3.5.2 Structure of the sheet feeder
4 -24 4. PRINTER ELECTRICAL SYSTEM
4 -24 4.1 Overview
4 -25 4.2 Logic Section
4 -25 4.2.1 Logic section block diagram
4 -26 4.2.2 Logic section components
4 -28 5. SENSOR FUNCTIONS
4 -28 5.1 Pick-Up Roller Sensor
4 -28 5.2 Paper End Sensor
4 -28 5.3 Home Position Sensor (Purge Sensor)
4 -28 5.4 Temperature Sensor
4 -29 5.5 Head Temperature Sensor
4 -29 5.6 Waste Ink Amount Detection
4 -30 6. SCANNER CARTRIDGE
4 -30 6.1 Scanner Cartridge Overview
4 -30 6.1.1 Block diagram
4 -31 6.2 Scanner Cartridge Structure
4 -33 6.3 Signal Contacts
4 -33 6.4 Scan Mode
4 -33 6.5 Calibration
Part 5: Maintenance
5 - 1 1. MAINTENANCE
5 - 1 1.1 Parts for Regular Replacement
5 - 1 1.2 Consumables
5 - 1 1.3 Periodic Maintenance
5 - 2 2. SERVICING TOOLS
5 - 2 2.1 List of Tools
5 - 3 3. GREASE APPLICATION
5 - 4 4. DISASSEMBLY AND REASSEMBLY
5 - 4 4.1 Disassembly and Reassembly
5 - 4 4.2 Disassembly and Reassembly Cautions
5 - 5 4.3 Logic Board and Bottom Cover Replacement Cautions
5 - 5 4.3.1 Logic board replacement cautions
5 - 5 4.3.2 Cautions after replacing the bottom cover
5 - 6 5. TROUBLESHOOTING
5 - 6 5.1 Troubleshooting
5 - 6 5.1.1 Overview
5 - 6 5.1.2 Troubleshooting cautions
5 - 8 5.2 Error Condition Diagnosis
5 - 8 5.2.1 Initial self check
5 -10 5.2.2 Error recovery
5 -23 6. LOCATION & SIGNAL ASSIGNMENT
5 -23 6.1 Logic Board
5 -25 6.2 Carriage Ribbon Cable
5 -26 6.3 BJ Cartridge & Scanner Cartridge
5 -28 7. CIRCUIT DIAGRAMS
5 -28 7.1 Parts Layout
5 -28 7.1.1 Logic board
IV
