Oki C9200 Service Manual page 113

3 Paper Size Error
• Is paper in the specified size used?
No Use paper that complies with the specification.
Yes Is the paper jammed at the entrance MT sensor or at the paper width sensor?
Yes Remove the jammed paper.
• Yes Does the lever of the entrance MT sensor operate normally?
No Replace the defective sensor lever.
• Yes Does the entrance MT sensor work properly?
(Operate the sensor lever and verify the signal on the FSENS connector pin on the engine
board (K73 PWB).)
Pin 4: Entrance MT sensor
No Check cable connection, or replace the sensor board (R71 PWB).
• Yes Does the lever of the entrance belt sensor operate normally?
No Replace the defective sensor lever.
• Yes Does the entrance belt sensor work properly?
(Operate the sensor lever and confirm that the sensor works properly, verify the signal on
the FSENS connector pin on the engine board (K73 PWB).)
Pin 6: Entrance belt sensor
No Check cable connection or replace the sensor board (R71 PWB).
• Yes Do all the paper-size detecting switches on the size detecting board (B73 PWB) work right?
(Press the paper-size detecting switches and verify the signal on the engine board PSIZE
connector pins.)
Pin 3: Paper size detector 1
Pin 4: Paper size detector 2
Pin 5: Paper size detector 3
Pin 6: Paper size detector 4
No Check cable connection, or replace the size detecting board (B73 PWB).
• Yes Check cable connection, or replace the engine board.
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