4 Up/Down movement error of the image drum unit (ID)
•
Turn the printer OFF, then turn it ON after a few seconds.
•
Are all ID drums rotating properly during print operation?
•
No
Is the ID motor resistance within the regulated value (approx. 2.4Ω)?
No
Replace the faulty IDU motor.
•
Yes Is 34V output to F3 and F5 on the engine board?
No
Replace the low-voltage power unit.
•
Yes Check the cable connections, then replace the engine board.
•
Yes
Is the IDU sensor terminal functioning properly?
No
Check the gear mesh status and sensor terminal function, the replace the gear or sensor
terminal.
•
Yes
Is the ID sensor terminal functioning properly?
(Check the JODEN connector pin signal on the driver board (K7N PXB).)
Pin 12
Pin 2
Pin 4
Pin 14
Are all at 5V level or 0V level?
No
Replace the connection board (N71 PWB).
•
Yes
Check the cable connection between the connection board (N71 PWB) and engine board
(K7N PWB), then replace the engine board.
41956001TH Rev.6
: IDU sensor - yellow
: IDU sensor - magenta
: IDU sensor - cyan
: IDU sensor - black
Oki Data CONFIDENTIAL
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