Appendix C Maintenance Manual for Second Tray unit
43984801TH Rev.1
162 /
Oki Data CONFIDENTIAL
• (Jam Error)
Paper Feed Jam
• Does a jam occur around the entrance when turning on the power?
• Yes Is the paper on the entrance sensor plate?
• Yes Remove the paper.
• No Does the entrance sensor plate work normally?
• No Replace the entrance sensor plate.
• Yes Replace the high-voltage power/ sensor board or entrance sensor.
• NO Does the paper inlet jam occur when paper is fed.
• Yes Is the paper on the entrance sensor plate?
• Yes Does the entrance sensor plate work normally?
• No Replace the entrance sensor plate.
• Yes Clean the high-voltage power/ the entrance sensor on the sensor board. Or
replace the high-voltage power/ sensor board or entrance sensor.
• No Replace the hopping roller shaft Assy or paper cassette.
• No Are the hopping roller and paper feed roller rotated?
• Yes Load the paper appropriately.
• No Is the pulse motor rotated?
• Yes Replace the hopping roller shaft Assy or the one-way clutch gear of the paper-feed
roller Assy.
• No Is the connector appropriately connected?
• No Connect the connector appropriately.
• Yes Check the coil resistance of the pulse motor.Is it normal (about 4.9 )?
• No Replace the stepping motor.
• Yes Replace the OT7 board.
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