Oki PACEMARK 4410 Service Manual page 135

C • Loose Carriage Belt?
No Yes
• Adjust Carriage Belt tension properly.
• The cable to PMA-Board CN8 connected properly?
Yes No
• Connect the cable properly.
• The Slit Sensor cable under Space Motor connected properly with the Printer-side cable?
Yes No
• Connect the cable properly.
• The cables to Space Motor terminals connected properly?
Black cable: Should be connected to the terminal with no marking.
Red cable: Should be connected to the terminal with red marking.
Yes No
• Connect the cables properly.
• Check the wave form of DC Motor Slit Sensor. Proper wave form output?
(A: Examine between Slit Sensor Cord Connector 2 pin under Space Motor and PRA-Board
SH4.
(B: Examine between Slit Sensor Cord Connector 1 pin under Space Motor and PRA-Board
SH4.
Yes No
• Replace Space Motor.
• Check conduction of (A(Pin 1) and (B(Pin 2), at the both ends of the junction sensor cable (black
shielded cable).
• Normal conduction?
Yes No
• Replace the junction sensor cable.
• Replace PMA-Board.
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