Feed Jam (1St Tray) - Oki C9500 Maintenance Manual

2-1 Feed jam (1st tray)

• Do feed jams occur right after power ON?
• Yes Is the jam at the entrance cassette sensor or entrance MT sensor?
Yes Remove the jammed paper.
(A)
• No Does the sensor lever (entrance cassette sensor or entrance MT sensor) function properly?
No Replace the faulty sensor lever.
• Yes Does the sensor (input cassette sensor, entrance MT sensor) function properly?
Operate each sensor lever and check the signal on the FSENS connector pin on the engine
board (K7N PWB).
Pin 4: Entrance sensor / Pin 2: Entrance MT sensor
No Check the connection of the NO signal cable, then replace the engine.
• Yes Check the signal cable connection, then replace the sensor board (R71 PWB).
• No Do feed jams occur right after papers are absorbed?
• Yes Did the paper reach the entrance cassette sensor or entrance MT sensor?
Yes Proceed to (A).
• No Replace the feed roller or paper separation frame assembly of the paper cassette.
• No Is the main feed motor rotating?
Yes Replace the feed roller or paper separation frame assembly of the paper cassette.
• No Is the main feed motor resistance within the regulated value (approx. 4Ω)?
No Replace the main feed motor.
• Yes Is 34V output to fuse F2 and F4 on the engine board?
No Replace the low-voltage power unit.
• Yes Check the gear mesh status and cable connections, then replace the engine board.
41956001TH Rev.6
Oki Data CONFIDENTIAL
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