Service manual

Malfunction Causes and Solutions

M000/M009 4-28 SM

4.4.7 NO ERROR MESSAGE WHEN THE COVER IS OPEN

Description:

An ERROR message does not come on even when the printer cover is open

Check... Solutions

1. Check the cover-open circuit on the

main board.

2. Check the cover-open board.

1. Check the insertion of the cover-open

S/W connector.

2. Replace the main control board or

cover-open board.

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... Solutions

1. Contamination of the pressure roller or

heat roller (Background, Hot off set)

2. Check whether the claw of the fuser is

deformed.

1. After disassembling the fuser, clean

contamination between the heat roller

and the thermistor and remove any

contamination on the pressure roller.

2. If there is heavy background, repair it

by the background troubleshooting

method.

3. Clean the surface of the heat roller with

IPA or water.

4. Check the warp or the holder plate

claw and the holder plate clew, and

then manage it.

CÓPIA NÃO CONTROLADA