The Disc Tray Is Not Fed; Two Or More Sheets Of Paper Fed At A Time - Brother DCP-J552DW Service Manual

4.2.2

The disc tray is not fed

<User Check>
- Check if the disc tray is loaded correctly.
Step
1 Foreign materials in the recording
paper feeding path
2 Paper feed motor harness
connection failure
3 CR encoder strip stained
4 Disc tray defective
5 Switching lever guide out of place Reattach the switching lever guide.
6 Disc guide cover not properly
attached
7 CR encoder sensor defective
8 Switchback roller defective
Paper ejection roller defective
Paper feed motor defective
9 Pressure roller release sensor
defective
10 Switching lever guide defective
11 Main PCB defective
4.2.3

Two or more sheets of paper fed at a time

<User Check>
- Check if the recording paper is loaded correctly in the paper tray.
- Check if the number of recording paper loaded in each paper tray is within specified volume.
- Try reversing the recording paper in each paper tray, or rotating direction of the paper for 180
degrees.
- Check if the recording paper's thickness is within specifications.
- Shuffle recording papers thoroughly and then reload them in the recording paper tray.
Step
1 Bank ASSY worn out
2 Base pad worn out
Cause
Remove foreign materials.
Reconnect the paper feed motor harness.
Clean the CR encoder strip.
Replace the disc tray.
(Refer to
Reattach the disc guide cover.
Replace the carriage PCB ASSY.
Replace the engine unit.
Replace the pressure roller release sensor.
Replace the maintenance unit.
Replace the main PCB ASSY.
Cause
Replace the bank ASSY.
Replace the base pad.
2-53
Solution
page 2-27)
Solution
Confidential