Brother DCP-J925DW, Service Manual

Page: 93 / 378

2-48 Confidential
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Error Code 90
Disc tray collided against an obstacle in the rear of the machine.
User Check
- Leave at least 10 cm (4 inches) of free space behind the machine.
- Clear any obstacles from the rear of the machine.
- Clear any obstacles from the surroundings of the jam clear cover.
- Check that the jam clear cover is properly closed.
- Remove recording paper from the paper path.
„
Error Code 91
Pressure roller has failed to be released.
Disc Tray hits at the back LCD
Step Cause Solution
1 Disc tray worn out
Replace the disc tray.
2 Foreign materials inside the
engine unit Remove foreign materials.
3 Chute cover not mounted
correctly Reposition the chute cover.
4 PF encoder disc defective Replace the PF encoder disc and clean the flushing
guide. Refer to
Chapter 3, Section 1 .
5 PF encoder sensor PCB defective Replace the PF encoder sensor PCB ASSY.
6 Paper feed motor defective
Replace the paper feed motor.
Unable to Init. 91 LCD
Step Cause Solution
1 Foreign materials inside the
engine unit Remove foreign materials.
2 Switching lever guide out of place Reposition the switching lever guide.
3
CR encoder strip stained
Replace the CR encoder strip.
4 Switching lever guide defective Replace the switching lever guide.
5 Pressure roller release sensor
defective Replace the pressure roller release sensor PCB
ASSY.
6 CR encoder sensor defective Replace the carriage PCB ASSY.
7 ASF drive ASSY defective Replace the ASF drive ASSY.
8 Engine unit defective Replace the engine unit.
9 Main PCB defective Replace the main PCB ASSY.