7$%/(2)&217(176
7$%/(2)&217(1767$%/(2)&217(176
7$%/(2)&217(176
1. DISASSEMBLYAND REPLACEMENT (#1~#22)
2. PARTSLIST
3. P.C.B.CIRCUIT DI AGRAM
4. C.P.UBLOCK DIAGRAMAND PIN ASSIGNMENT
5. MEASUREMENT
• VOLTAGECHECK
• MOTOR OPERATION CHECK
• PRINT HEAD RESISTANCE MEASUREMENT
• SENSORS CIRCUIT
• CPU OPERATION