Oki Pacemark 4410 Service Handbook page 142

No Yes
• Replace Ink Ribbon Cartridge.
• Check the ribbon route in Ink Ribbon Cartridge. Is it normal? XXX rotating?
Yes No
• Set the ink ribbon on the correct route.
• Ink Ribbon Rotation Sensor mounted properly?
Yes No
• Install the sensor properly.
• The cables to PRA-Board CN4 and CN1 connected properly?
Yes No
• Connect the cables properly.
• The cable to PMA-Board CN2 connected properly?
Yes No
• Connect the cable properly.
• Check the Ribbon Rotation Sensor wave form at PRA-Board. No problem?
Ribbon Rotation Sensor: Examine between CN4-5 pin and SH4.
Yes No
• Replace the Cover Open Switch/Ribbon Rotation Sensor cable.
• Replace PMA-Board. Recovered?
No Yes
• End
• Replace PRA-Board. Recovered?
No Yes
• End
• Replace the junction cable.
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