Oki C9850 Maintenance Manual page 200

Paper Size Error
• Is standard size paper used?
NO Use standard size paper.
• YES Does the paper jam occur at the IN 1 Sensor?
YES Remove the paper jam.
• NO Does IN1 Sensor Lever operate normally?
NO Replace the defective sensor lever.
• YES Does the IN1 Sensor operate normally?
(Activate the Sensor Lever and check to see if the sensor works properly using the
switch scan test in the self-diagnosis mode.)
NO
• YES Does the IN2 Sensor Lever operate normally?
NO
• YES Does the IN2 Sensor operate normally?
(Activate the Sensor Lever and check to see if the sensor works properly using the
switch scan test in the self-diagnosis mode.)
NO
• YES Do all the Paper Size Detection Switches work properly?
(Press the switches and check them using the switch scan test in the self-diagnosis
mode.)
NO
• YES Does the guide of the cassette it the paper size? (See Table 5-2.)
NO
• YES Check the cable connection, then replace the motor driver PCB (S2P)
43627911TH Rev. 3
Check cable connection, then replace Sensor PCB (S2C PWB).
Replace the defective sensor lever.
Check cable connection, then replace Sensor PCB (S2S PWB).
Check the cable connection, then replace the Sensor Assy.
Replace the cassette.
Oki Data CONFIDENTIAL
200 /