Oki C7400 Maintenance Manual page 105

2-4 Paper Exit Jam
• Has the paper exit jam occurred immediately after power-on?
• Yes Is the paper jammed at the exit sensor?
Yes Remove the jammed paper.
• No Does the sensor lever move properly?
No Replace the sensor lever.
• Yes Does the exit sensor operate properly?
(Operate the sensor lever to check the sensor for proper operation on the switch scan test
in the system maintenance mode or check the signals on the connector PARTTEMP pin 8
of the engine board (71K PWB).
No Replace the exit sensor after checking the signal cable connection.
• Yes Replace the engine board.
• No Is the face-up stacker cover open or close completely?
No Open or close the stacker cover completely.
• Yes Is the heat motor running?
• No Does the resistance of the heat motor lie at the rated value (approx. 7.9 )?
No Replace the heat motor.
• Yes Is 32V output to the POWER connector Pins 7~10 on the engine board?
No Replace the low voltage power unit.
• Yes Replace the engine board after checking the cable connection.
• Yes Does the exit guide Assy operate properly?
No Replace the exit guide Assy.
• Yes Replace the engine board.
41316401TH Rev.9
Oki Data CONFIDENTIAL
105 /