Service manual

TROUBLESHOOTING
3.1 OVERVIEW..............................................................................................3-0
3.1.1 Main Component Checking Point................................................................3-0
3.1.2 Error ...............................................................................................................3-0
3.2 UNIT LEVEL TROUBLESHOOTING......................................................3-0
3.3 UNIT REPAIRING OF THE POWER SUPPLY BOARD ........................3-0
3.4 UNIT REPAIRING OF THE MAIN BOARD ............................................3-0
3.5 REPAIRING THE PRINTER MECHANISM ............................................3-0
DISASSEMBLY AND ASSEMBLY
4.1 OVERVIEW..............................................................................................4-0
4.1.1 Disassembly Precautions............................................................................4-0
4.1.2 Tools and Instruments..................................................................................4-0
4.1.3 Service Check After Repair ..........................................................................4-0
4.1.4 Abbreviations for Small Parts......................................................................4-0
4.2 DISASSEMBLY AND ASSEMBLY.........................................................4-0
4.2.1 Printhead Removal........................................................................................4-0
4.2.2 HP (Home Position) Detector Removal .......................................................4-0
4.2.3 Pre-disassembly Procedures.......................................................................4-0
4.2.4 Upper Housing Removal...............................................................................4-0
4.2.5 C229MAIN Board Removal ...........................................................................4-0
4.2.6 C229PSB/PSE Board Removal.....................................................................4-0
4.2.7 ROM Removal................................................................................................4-0
4.2.8 Platen Removal .............................................................................................4-0
4.2.9 Printer Mechanism Removal ........................................................................4-0
4.2.10 Printer Mechanism Disassembly ...............................................................4-0
4.2.10.1 CR Motor Removal ............................................................................4-0
4.2.10.2 PF Motor Removal.............................................................................4-0
4.2.10.3 PF Gear Train Disassembly...............................................................4-0
4.2.10.4 PG (Platen Gap) Detector Removal...................................................4-0
4.2.10.5 Release Detector Removal................................................................4-0
4.2.10.6 Front PE (Paper End) Detector Removal...........................................4-0
4.2.10.7 Rear PE Detector Removal................................................................4-0
4.2.10.8 Carriage Assembly Removal .............................................................4-0
4.2.10.9 Rear Paper Guide Assembly Removal ..............................................4-0
4.2.10.10 Ribbon Drive (RD) Assembly Removal............................................4-0