Brother GT-3 Series Service Manual page 102

Flow 2 (Electrical issue?)
From previous flow
All nozzles
misfiring?
NO
Clean the Print Head by Tube
Cleaning (See "4-1-4".)
Execute "Powerful" cleaning
(up to 10 times).
Max. 25 cc of ink used.
Print a check pattern and count
the number of misfiring nozzles.
NO
All nozzles
firing?
YES
Problem solved.
(No PH replacement)
Are FFCs
YES
connected
properly?
Print check pattern after
reconnecting FFCs.
Repeating "Powerful"
cleaning 10 times does not
resolve the problem.
Tube Cleaning
YES
All nozzles firing?
Execute "Powerful" cleaning
(up to 5 times).
Print a check pattern and count
the number of misfiring nozzles.
NO
All nozzles firing?
Problem solved.
(No PH replacement)
GT-3 Series
4. Solving Print Quality Problems
YES
NO
Load Ink
10 cc of ink used.
NO
Max. 25 cc of ink used.
Repeating "Powerful"
cleaning 5 times does not
YES
resolve the problem.
Go to Flow 4.
YES
All nozzles
firing?
NO
Problem solved.
(No PH replacement)
Go to Flow 4.
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