Canon LBP-1210 Service Manual page 182

CHAPTER 4
Action: Replace the engine controller PCB.
VI-3. The printer cannot enter the ready mode and a "jam status" is output, although a
paper jam has not occurred.
<Possible causes>
1) The top of page sensor lever is not moving smoothly, or damaged.
Action: Set the lever to move smoothly. Replace the lever if damaged.
2) The paper delivery sensor lever is not moving smoothly, or damaged.
Action: Set the lever to move smoothly. Replace the lever if damaged.
3) Defective top of page sensor
Action: Replace the sensor.
4) Defective paper delivery sensor
Action: Replace the sensor.
5) The engine controller PCB is defective.
Action: Replace the engine controller PCB.
VI-4. The printer cannot enter the ready mode and a "door open status" is output,
although the door was closed after installing the cartridge.
<Possible causes>
1) Damaged cartridge cover lever
Action: Replace the cover.
2) Defective door detection switch
Action: Replace the switch.
3) The engine controller PCB is defective.
Action: Replace the engine controller PCB.
VI-5. The printer cannot enter the ready mode and a "paper out status" is output,
although paper is set.
<Possible causes>
1) The paper out sensor lever is not moving smoothly, or damaged
Action: Set the lever to move smoothly. Replace the lever if damaged.
2) The paper out sensor is defective.
Action: Replace the paper out sensor.
3) The engine controller PCB is defective.
Action: Replace the engine controller PCB.
VI-6. The printer cannot enter the ready mode and a "cartridge out status" is output,
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