Brother GT-3 Series Service Manual page 101

4. Solving Print Quality Problems
Flow 1 (Some device around the Print Head causes misfiring?)
Check if the Wiper Cleaner Cassette is dirty and replace with a new one if required.
Check for any looseness or bending at the Tube and Head connections.
Clean the Wiper Blade if dirty, or replace if broken.
Exchange the M/Y Filter if the warning is indicated.
YES
Replace the FFC.
Replace the
Wiper Blade
Print a check pattern and count the number of misfiring nozzles.
Print a check pattern and count the number of misfiring nozzles.
92
Misfiring occurs.
<Cannot be resolved by Head cleaning.>
Is the FFC folded or damaged? Is
there any peeling at the edges?
NO
YES
Has the Wiper
Blade come off?
NO
Has ink been installed on
the new Print Heads?
NO
5 or more nozzles misfiring?
NO
Execute "Powerful" cleaning (up to 5 times).
NO
All nozzles firing?
YES
Problem solved.
(No PH replacement)
Remove the Wiper Cleaner, and
check if the bottom of the Wiper
Blade moves when the top is pushed.
If it moves, the Wiper Blade has
come off.
YES
YES
Max. 12.5 cc of ink used.
Repeating "Powerful" Head
cleaning 5 times does not
resolve the problem.
GT-3 Series
Go to Flow 2.
Go to Flow 4.
Go to Flow 3.