HP laserjet m712 Guide De Dépannage

1. Perform the drum-motor component test in the Troubleshooting menu.

2. Use the disable toner cartridge check and run the drum motor component test with the toner

cartridge removed. If the test passes, replace the toner cartridge. If the test fails, replace the drum

motor.

3. If the product was previously serviced, check the connector at the drum motor assembly and the

DC controller. See the circuit diagram for details.

The product experienced a drum motor rotation error.

1. Perform the drum-motor component test in the Troubleshooting menu.

2. Use the disable toner cartridge check and run the drum motor component test with the toner

cartridge removed. If the test passes, replace the toner cartridge. If the test fails, replace the drum

motor.

3. If the product was previously serviced, check the connector at the drum motor assembly and the

DC controller. See the circuit diagram for details.

The indicated tray has not lifted into the paper feed position.

1. Turn the product off and then on.

2. Check the connector (J51) on the DC controller PCA.

3. Check the connectors on the lifter motors.

4. Use the tray lifter sensor test in the Tray/ Bin manual sensor test menu to verify that the

sensor is properly functioning. If it is not, replace the lifter drive assembly.

5. If the error persists, replace the lifter drive assembly.

The product experienced an internal system failure.

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Chapter 2   Solve problems

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