Brother Business Smart MFC-J4510dw, Service Manual

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Confidential 2-74

Separated lines at the trailing edge of the recording paper

Characters having shadows (ghost)
User Check
- Carry out head cleaning.
Step Cause Solution
1 Paper feeding correction value not
updated Adjust the paper feeding correction value (refer to
Chapter 5, Section 1.3.19 .)
2 PF encoder disk stained Clean the PF encoder disk and flushing guide (refer
to
Chapter 3, Section 1 .)
3 Non-discharge of ink from head Perform the recommended purge procedures.
Refer to "Recommended purge procedures" in
Chapter 5, Section 1.3.29 "Purge Operation
(Maintenance mode 76)."
4 PF encoder disk defective Replace the PF encoder disk.
5 Main PCB defective Replace the main PCB ASSY.
User Check
- Carry out head cleaning.
Step Cause Solution
1 Paper feeding correction value not
updated Adjust the paper feeding correction value (refer to
Chapter 5, Section 1.3.19 .)
2 Vertical print lines not aligned Adjust vertical print line alignment (refer to Chapter
5, Section 1.3.23 .)
3 PF encoder disk stained Clean the PF encoder disk and flushing guide (refer
to
Chapter 3, Section 1 .)
4 CR encoder strip stained Clean the CR encoder strip.
5 PF encoder disk defective Replace the PF encoder disk.
6 CR encoder strip defective Replace the CR encoder strip.
7 Head defective Replace the head/carriage unit.
8 Main PCB defective Replace the main PCB ASSY.