Brother GTX-4 Instruction Manual page 242

Probable Cause
Is any water content attached to the pretreatment
roller after the pretreatment is fixated?
Is there any lint, yarn waste, dust, etc. that are
attached to the surface of pretreatment roller? (This
applies to the case where the pretreatment roller is
used.)
Did you shake the pretreatment after its dilution?
Is the [Low Temperature Mode] set to [Disable]?
Has the pretreatment been fixated insufficiently?
Whiteness of print result is insufficient
Probable Cause
Has the pretreatment been applied insufficiently?
Has the pretreatment been fixated insufficiently?
Is there any nozzle that does not eject ink-jet
droplets?
Is the white ink circulated insufficiently?
Do you perform white ink refilling?
Is the white ink stirred insufficiently?
Is the [Low Temperature Mode] set to [Disable]?
Is the dilution rate of the pretreatment correct?
With reference to "6-3-4. Fixation of pretreatment >>P.141",
prevent water content from being attached to the roller after the
pretreatment is fixated.
With reference to "6-3-3. Application of pretreatment >>P.135",
clean the surface of the pretreatment roller.
With reference to "6-3-2. Dilution of pretreatment >>P.133", shake
the pretreatment sufficiently.
With reference to "8-5. Print Operation Settings Under Low
Temperature >>P.227", change the setting to [Enable(Normal)].
With reference to "6-3-4. Fixation of pretreatment >>P.141",
check on an actual temperature of the heat press and its pressure
during the fixation stage.
Always keeping the lower iron (where media is placed) of the heat
press at heated temperature with a heating source may solve this
problem.
With reference to "6-3-3. Application of pretreatment >>P.135",
apply a proper amount of pretreatment.
With reference to "6-3-4. Fixation of pretreatment >>P.141",
check on an actual temperature of the heat press and its pressure
during the fixation stage.
Press on the operation panel, or perform the head cleaning
by selecting [Head Cleaning] from the menu.
If this problem is still not remedied, follow the instructions of
"9-2-1. Recovery action to be taken for such a nozzle that is
unable to eject ink-jet droplets >>P.245".
From the menu, select [Maintenance] > [White Ink Circulation] to
circulate the white ink properly.
With reference to "6-2-3. Daily agitation of the white ink >>P.127",
perform white ink refilling.
In the event that the white ink remains accumulated in the bottom
of the ink pouch, shake the pouch 100 times and additionally
shake it until the ink is stirred well.
Also, when the remaining ink level becomes approximately 5.9 in.
(15 cm), shake the cartridge with its cover open and with the edge
of the ink pouch slightly winded.
With reference to "8-5. Print Operation Settings Under Low
Temperature >>P.227", change the setting to [Enable(Normal)].
With reference to "6-3-2. Dilution of pretreatment >>P.133",
correctly dilute the pretreatment.
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Troubleshooting
Remedy
Remedy