Brother Business Smart MFC-J4510dw, Service Manual

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Confidential 2-47

Error Code 88
Recording paper jam, switchback sensor cannot detect paper feeding state even papers are fed
during printing.
User Check
- Remove the jammed paper in platen part and front part.

Error Code 89
Recording paper width sensor cannot detect origin specified on the recording paper feed roller.
Paper Jam
LCD
Step Cause Solution
1 Foreign materials in the feeding
path Remove foreign materials.
2 Switchback actuator out of place Set the switchback frame ASSY into place.
3 Switchback paper sensor harness
connection failure Reconnect the switchback paper sensor harness.
4 Sensor relay PCB harness
connection failure Reconnect the sensor relay PCB harness.
5 Paper feed roller, paper ejection
roller stained Clean the related rollers.
6 Paper feed roller, paper ejection
roller defective Replace related rollers.
7 Sensor relay PCB defective Replace the sensor relay PCB ASSY.
8 Main PCB defective Replace the main PCB ASSY.
Unable to Print 89 LCD
Step Cause Solution
1 PF encoder disk stained Clean the PF encoder disk and flushing guide (refer
to
Chapter 3, Section 1 .)
2 PF home position detection lever
out of place Set the PF home position detection lever into place.
3 Paper width sensor or carriage
PCB defective Replace the carriage PCB ASSY.
4 Main PCB defective Replace the main PCB ASSY.
PF home position detection lever
(2_001_E)