Defective Motor Operation - Xerox Phaser 3120 Service Manual

TROUBLESHOOTING

4.4.8 Defective motor operation

• Description
Main motor is not driving when printing, and paper does not feed into the printer, resulting 'Jam 0'.
Check and Cause
1. Motor harness or sub PCB may be defective.
2. Perform DCU diagnostic code 00 and Check the motor
operation.
4.4.9 No Power
• Description
When system power is turned on, all lamps on the operator panel do not come on.
Check and Cause
1. Check if the power input and SMPS output are normal.
2. Check the inferiority of LED-Panel on the front-cover if
the LED of Panel does not appear after normal warming-
up.
Service Manual
4-20
Solution
1. Check the motor harness, replace it, if defective.
2. Replace the SMPS, if necessary.
Solution
1. Replace the power supply cord or SMPS.
2. Replace the control board.
3. Replace the LED-panel.