42640901TH Rev.1 54 /
Oki Data CONFIDENTIAL
[JAM error]
2-2 Paper feed jam
• Does the paper feed jam occur when the power is turned on?
• Yes Is the paper on the paper sensor plate?
• Yes Remove the paper.
• No Is the operation of the paper sensor plate normal (moves freely when it is touched)?
• No Replace the paper sensor plate.
• Yes Replace the high voltage/sensor board.
• No Has the paper reached the paper sensor plate?
• No Is the registration roller rotating?
• No Replace the one-way clutch gear of the hopping roller assembly.
• Yes Is the image drum cartridge being set properly?
• No Set the image drum cartridge properly.
• Yes Check the hopping roller assembly or tray.
• Yes Has the paper reached the outlet sensor plate?
• Yes Is the operation of the outlet sensor plate normal (moves freely when it is touched)?
• No Replace the outlet sensor plate.
• Yes Clean the outlet sensor on the high voltage/sensor board or replace the high voltage/
sensor board.
• No Is the main/drum motor rotating?
• No Is DM connector on the main control board being connected properly?
• No Connect DM connector properly.
• Yes Is the coil resistance (normal resistance: both between Pins 1 and 2, as well as Pins 3
and 4 are about 8.6Ω) of the main/drum motor correct ?
• No Replace the main/drum motor.
• Yes Replace the main control board.
• Yes Is the transfer roller rotating?
2-2-a
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