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4 Solid lines or streaks appear in the vertical direction. (Black lines, color lines / black streaks, color
streaks) (Fig. 5-2 D )
• Is the LED head assembly connected properly to the connection board (Y73 PWB)?
NO Connect the LED head assembly to the connection board properly.
▼
• YES Check the cable connections, then replace the LED head assembly. Did the printer recover?
YES End.
▼
• YES Check the cable connections, then replace the connection board (Y73 PWB). Did the printer
recover?
YES End
▼
• NO Is the engine board (K7N PWB) connected properly to the connection board (Y73 PWB)?
NO Connected the engine board properly to the connection board.
▼
• YES Check the cable connections, then replace the engine board (K7N PWB). Did the printer
recover?
YES End
▼
• NO Is the I/D terminal connected properly to the contact assembly? (See Fig. 5-3)
NO Connect the I/D terminal properly to the contact assembly.
▼
• YES Replace the image drum.
Note:
1. Remove EEPROM from the old board and set it on the new board upon replacing the
engine board (K7N PWB).
2. If EEPROM is not replaced, refer to section 3.2.2.
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