Brother GTX600NB Instruction Manual page 265

Step 1: Print out a nozzle check pattern
(5) Print out a nozzle check pattern (1st time). ☞"6-1-17. Print out the nozzle check pattern (checking on the print
heads) >>P.6-44"
(6) Check the result of the printed nozzle check pattern (1st time), and carry out the following procedures. ☞"6-1-17.
Print out the nozzle check pattern (checking on the print heads) >>P.6-44"
<TIPS>

Even if the white print result is weak, since the white ink is ejected on one same spot through multiple nozzles, a relatively
large amount of ink volume will be used, and the firing problem of a single nozzle will not affect the print quality so much.
Even in a condition with weak lines, the print is performed without a problem.
Existence or nonexistence of a
nozzle that does not eject any
ink-jet droplets
Such a nozzle does not exist that
does not eject any ink-jet droplets
Such a nozzle exists that does not
eject any ink-jet droplets
Step 2: Perform the head cleaning
(1) Perform a normal cleaning. ☞"6-1-15. Head cleaning >>P.6-41"
(2) Print out a nozzle check pattern (2nd time).
(3) Check the result of the printed nozzle check pattern (2nd time), and carry out the following procedures.
Existence or nonexistence of a
nozzle that does not eject any
ink-jet droplets
Such a nozzle does not exist that
does not eject any ink-jet droplets
Ten-or-less nozzles exist that do
not eject any ink-jet droplets
Ten-or-more nozzles exist that do
not eject any ink-jet droplets
More than half of the nozzles do
not eject any ink-jet droplets
(4) Print out a nozzle check pattern (3rd time).
(5) Check the result of the printed nozzle check pattern (3rd time), and carry out the following procedures.
Existence or nonexistence of a
nozzle that does not eject any
ink-jet droplets
Such a nozzle does not exist that
does not eject any ink-jet droplets
Such a nozzle exists that does not
eject any ink-jet droplets
Contact your dealer if there is no non-ejection when printing the nozzle
check pattern, but a large amount of non-ejection occurs during printing.
Proceed to Step 2.
Exit
Perform the normal cleaning once again. Subsequently, proceed to (4).
Perform the powerful cleaning. Subsequently, proceed to (4).
Perform air bleeding in the tube. From the menu, select [Maintenance] >
[Tube air bleed] and select the corresponding head and color.
Exit
Proceed to Step 3.
8-14
Recovery action
Recovery action
Recovery action
Troubleshooting