
4. Solving Print Quality Problems
Flow 4 (Clogging inside the Print Head?)
From previous flow
The Maintenance unit, Ink Supply Tube, or Ink
Supply unit may be faulty.
GT-3 Series
95
Powerful Cleaning
(up to 5 times)
YES
YES
NO
YES
NO
NO
YES
YES
NO
NO
NO
YES
NO
All nozzles
misfiring?
Filter new?
YES
Is the Ink Supply
Tube bent?
Insert a new Ink Cartridge, execute “Powerful”
cleaning, and then print a solid pattern.
Significant misfiring
immediately after printing
started?
Is weight of current Ink
Cartridge 250 g or
more?
Remaining ink qty may not
be measured correctly.
NO
Print a solid pattern on A3 paper after “Powerful” Head cleaning.
Exchange Filter
YES
Print a check pattern and count
the number of misfiring nozzles.
Straighten the Tube, execute
“Powerful” cleaning, and then print a
solid pattern.
Significant misfiring
immediately after
printing started?
Significant misfiring
immediately after
printing started?
Tube clogging
Replace Print Head and
Ink Supply Tube.
Go to Flow 3.
Problem solved.
No problem with Ink Supply unit.
Max. 12.5 cc of ink used.
2.5 cc of ink used.
All nozzles firing?
Repeating "Powerful"
cleaning 5 times does
not resolve the
problem.
(No PH replacement)
Go to Flow 6 to
replace Filter.
Ink may not be filled properly.
Go to Flow 5.
2.5 cc of ink used.