Troubleshooting By Print-Image Defect - Brother DCP-J552DW Service Manual

4.3.2

Troubleshooting by print-image defect

Problems related to image defects can also be resolved by the end users by following the User
Check items.
If the same problem occurs, follow each procedure in the order of the number described in the Step
column in the tables below.
■ Completely blank
Step
1 Maintenance unit stained
2 The head property value is
incorrect
3 Head flat cable connection failure
4 Carriage flat cable connection
failure
5 Non-discharge of ink from head
6 Ink supply tubes bent
7 Carriage PCB defective
8 Maintenance unit defective
9 Head defective
10 Main PCB defective
<User Check>
- Check if there is an ample amount ink volume.
- Carry out head cleaning.
- Replace it with a new ink cartridge.
Cause
Clean the maintenance unit.
(Refer to the diagram below)
Enter the head property value.
(Refer to
Reconnect the head flat cable.
Reconnect the carriage flat cable.
Carry out the recommended purge procedures. Refer
to "Recommended purge procedures" in
Section 1.3.29 "Purge Operation (Maintenance mode
76)".
Replace the ink refill unit.
Replace the carriage PCB ASSY.
Replace the maintenance unit.
Replace the head/carriage unit.
Replace the main PCB ASSY.
Cleaner stick
(Front)
2-60
Solution
Chapter 5, Section 1.3.25)
Maintenance unit
Chapter 5,
(cleaning)
Confidential