Print-Image Problems - Brother DCP-J4110DW Service Manual

4.3.2 Print-image problems

Problems related to defective image are end user recoverable if 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 Wrong head property value
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
<Cleaning of the maintenance unit>
User Check
- Check if there is enough remaining ink.
- Carry out head cleaning.
Cause
Clean the maintenance unit (refer to the figure
below.)
Input the head property value (refer to
Section
Reconnect the head flat cable.
Reconnect the Carriage flat cable.
Perform the recommended purge procedures.
Refer to "Recommended purge procedures" in
Chapter 5, Section 1.3.29 "Purge Operation
(Maintenance mode 76)."
Replace the ink refill ASSY.
Replace the carriage PCB ASSY.
Replace the maintenance unit.
Replace the head/carriage unit.
Replace the main PCB ASSY.
Cleaner stick
2-66
Solution
1.3.25.)
Maintenance unit
Chapter 5,
(cleaning_E)
Confidential