Unit Repair Printer Mechanism

This section provides instruction for repairing mechanism. It describes various problems, symptom, likely causes, checkpoints, and solutions. Select appropriate symptom from the the table and check each parts and its function as describes in the checkpoint. Table 3-10. Repair of the Printer Mechanism Table 3-10. Repair of the Printer Mechanism Foreign substances are loaded in the PF gears. Manually drive the PF drive gear and check if it rotates normally. Abnormal PF motor operation when the...

Main Control Circuit

Stylus Head Circuit Diagram

Printer mechanism is controlled by C259 main board. The figure below shows the block diagram of C259 main control circuit. Figure 2-4. Control Circuit Block Diagram Figure 2-4. Control Circuit Block Diagram Major elements used in C259 main control circuit board are below. 16bit CPU mounted on the control circuit board is driven by 24MHz clock frequency, and controls the whole printer. Mac,Serial I F, running direction parallel I F, USB I F control Volume 4 8 16MB, Bus width 16 bit EEPROM...