Brother GTX pro Instruction manual

1

2
ENVIRONMENTAL CONDITIONS
PRE-TREATMENT RATIO & QUANTITY
Ideal Operating Temperature & Humidity
Temperature & Humidity are recorded in the Log le
Mixing Pre-Treatment Solution
A ratio of 1:1 (1 part Brother pretreat to 1 part distilled water) is recommended.
Go to the menu: Maintenance Temperature/Humidity Info
> If temperature is too cold, printer will switch automatically to Low-Temp Mode and reduce output.
> If humidity too low, please install a HUMIDIFIER.
> Min & Max Temperature & Humidity ranges are ideal and we recommend running your GTXpro at a higher
number than minimum to reduce additional cleanings.
> This mixing ratio might vary due to the type of garment which is used. See video on garment proling.
1 Part
Brother
Pretreat
Distilled
Water
1:1 Mixed
Pretreat
Solution
1 Part

3
HEAT PRESS SETTINGS FOR INK CURING
> Check the REAL temperature of the heat press with a probe or with strips to ensure that your garments
are properly cured for washability.
> Proper pretreat volume for a garment should be determined by a garment’s absorbency rate in
conjunction with using the Highlight-Mask Check Pattern to help determine driver ink settings.
> Don’t forget that you have to dene a surface of 14 X 16 inches [35 X 40 cm] with your pretreatment ma-
chine to weight the amount of spray, with a scale, after applying the pretreat on a T-shirt.
> For example, on a Schulze pretreat machine, you should enter a length of 13 inches and the full width
of 4 nozzles will be 17 inches. And then, calibrate the pretreat machine to spray 30 g on the garment.
1:1 Mixed
Pretreat
Solution
HEAT
PRESS INK
CURING 35
Seconds
High Absorbency
Fabric Absorbency Pretreat Amount
40-50 Grams
Medium Absorbency 30-39 Grams
Low Absorbency 15-29 Grams
Thick materials or open weaves like hoodies
Regular Cotton Tees 4.0 to 6.0 oz
Thin Material + Blend or Specialty Items
Determining Pretreat Quantity
Pretreat solution quantity will vary based on thickness of the garment. Use the chart below as a guideline.
10-20
PSI
0.7-1.4
Bars
356°F
180°C
HEAT PRESS SETTINGS FOR PRETREAT CURING
1:1 Mixed
Pretreat
Solution 35
Seconds
75-80
PSI
5-5.5
Bars
360°F
182°C
> Placing silicone based parchment paper over the pretreated garment while heat pressing can mitigate dried
pretreat buildup on the non-stick covers. Clean the non-stick covers on the heat press with a scrap t-shirt or
cloth after every 5 t-shirts if not using silicone based parchment paper.

4
CONVEYOR DRYER SETTINGS FOR INK CURING
DAILY AGITATION OF WHITE INK
> Check the REAL temperature with a probe or with strips to ensure that your garments are properly cured
for washability.
Conveyor
Dryer INK
CURING
3:30
Minutes
320°F
160°C
Perform the procedure shown below if the message “Remove the white ink cartridge and
shake it” is displayed before starting the printing process.
Remove the white ink cartridge from the printer. Shake the cartridge horizontally 100 times side
to side to agitate the white ink. When the ink depletes to the level of approximately 6 inches (15
cm), shake the cartridge with the cover open and the ink pouch unwound which will make the
ink easier to agitate.
Repeat the same process with the other white ink cartridge. Once agitation is complete and
cartridges have been re-inserted, press [Menu/OK] on the control panel.
For 1 Minute
1’
15 cm
For 1 Minute
1’
5 cm
Shake
Horizontally
6 inches
(15 cm)
NEVER POWER OFF THE PRINTER
VERY IMPORTANT
The Brother GTXpro should ALWAYS be
left with the Power ON. NEVER shut OFF
the printer except if requested by the
display message only. Power is needed to
perform the needed circulation of the white
ink and auto maintenance every day.
In the event that power goes out or your printer has an error during printing, push the Carriage
back all the way to the left to dock it and use the Fixing Pin to lock it in place (see images above).

5
INK POUCH REPLACEMENT
BEST PRACTICE FOR PRINTING - A MUST!
> If you are not trying to avoid wrinkles like explained above, you could get the errors 2084 & 2085
displaying: “Winding-up Failure”
> Always keep the closest distance between the printheads and the surface of the garment.
It is very important for the long life of your printer.
Open the cartridge’s lid on a at surface and remove the empty pouch. Carefully unpack a new ink
pouch from its shipping carton.
Push the green tip end of the ink pouch into the cartridge until it clicks into place. Straighten the ink
pouch to align it with the gutter of the lid of cartridge, and mount in position inside the metal spring
by pulling it with your hand. If the edge of the ink pouch is bent or wrinkled, smooth it out with your
hands to remove wrinkles.
Place the pouch in horizontal alignment with the cartridge. Ensure lines of the catridge and pouch
are in alignment.
Close the lid, and verify the spring is rolling to the front. If spring does not roll, smooth out wrinkles
and try again. Place the cartridge at a 45° angle and push on the 2 upper metallic latches to add
a bit more tension on the ink pouch. Double-check that you have not generated more wrinkles.
Clean the outside of the green tip end that goes in contact with needle inside printer.
Attach a shelf life sticker included with ink pouch onto the front of the cartridge.
Good Gap Excessive Gap

6
ADJUSTING THE HEIGHT OF THE PLATEN
“PLATEN TOO LOW” SENSORS
To ensure optimal print quality when a thicker textile is used, you need to adjust the platen’s
height in relation to the thickness of the textile.
To adjust the platen height, loosen the Platen Fixing
Lever (1) and move the Platen Height Adjustment
Lever (2) to a lower position.
Re-tighten the Platen Fixing Lever (1) if you are happy
with the new height. Smooth out all wrinkles on fabric
to be printed on. To check if new textile is not detected
by the sensor, push the double arrow platen feed
button and repeat the process if needed. If you need
the platen to go down further than the lowest setting,
remove 1 or 2 collars, loosen the knob (3) and push
down the platen bearing by 1 or 2 steps. Reattach
everything and tighten the Platen Fixing Lever (1).
> Don’t forget to adjust the platen lever to position A after printing on thicker material.
> Always tighten knob (3) after changing position. Do not overtighten screw as it can become stripped.
> If you have to print above hem and seams, go for UNI-directional printing to keep quality.
Normal Detecting
Top Left: Obstacle Sensor
Bottom Left: EDP Sensor
Excessive Dropping
Error Code: 2072
If error occurs, press okay. Prior to next
print raise platen to optimal platen height.
DAILY MAINTENANCE: Nozzle Check
In order to check the status of the nozzles in the print heads, a Nozzle Check must be
performed for White and CMYK. This should be done every day to ensure optimal performance.
How to perform a CMYK Nozzle Check?
Always place the Platen at level A
Test PrintMenu Nozzle Check CMYK to print a color Nozzle Check
pattern on a white paper sheet

7
How to perform a WHITE Nozzle Check?
Always place the Platen at level A
Test PrintMenu Nozzle Check White
to print a white Nozzle Check
pattern on a black paper sheet
or transparent plastic sheet
> Inspect the printed Nozzle Check patterns for missing nozzle lines indicating a non-ring nozzle. If not all
nozzles are ring, start a Head Cleaning to open the closed nozzles.
PRINT HEAD CLEANING
Print Head Cleanings are needed if nozzles are missing on a Nozzle Check. They will help
clear the print head nozzles if they are blocked. Missing Nozzles are dened by a test print
pattern missing horizontal pins (that represent each of the nozzles of the print head) being
closed up with debris and therefore not showing up. When nozzles/pins are missing you will
want to perform one of the cleanings indicated below.
How do I perform a Print Head Cleaning?
Head Cleaning
Head Cleaning
Menu
Menu
Powerful Cleaning
Super Cleaning
select Print
Heads
If only a few nozzles are missing (See g. 1), do a Powerful Cleaning and select applicable print heads.
If more than 10 nozzles are missing (See g. 2), do a Super Cleaning and select applicable print heads.
select Print
Heads

8
DEFLECTION & FLASH FIRING
WEEKLY MAINTENANCE
Deection appears as odd bunched up or
gapped lines where the horizontal bars will
appear blurred and staggered. When this is
present you will want to perform 2-3 Flash
Fire Cleanings.
After performing a Flash Fire Cleaning 2-3
times, perform another Nozzle Check to test
the results.
fig. 1 fig. 2
Only a few nozzles missing:
Perform a Powerful Cleaning
More than 10 nozzles missing:
Perform a Super Cleaning
> Perform a new Nozzle Check after Head Cleaning to check the result and redo the cleaning up to 3 times.
Ensure all other maintenance has been performed such as cleaning the cap and wiper blade and see that the
wiper cassette is fresh and still has moisture. If there is no improvement by the 4th time, please contact support.
> If this does not resolve the matter, please visit BrotherDTG.com/Support to contact Brother Support.
Head CleaningMenu
Menu
Flash Cleaning select Print
Heads
> Always use this menu to perform cleanings or replace parts:
To achieve successful weekly maintenance you will have to do the following actions:
Maintenance Maintenance Part Clean/Replace
• Suction Cap Cleaning
• Exhaust Cap Cleaning
• Wiper Cleaning
• Nozzle Guard Cleaning
• Visual Inspection
WARNING
You will have 15 minutes to complete
any pending items for the maintenance
process. Prepare to complete all items
within the allotted time.
15
Min

9
WEEKLY MAINTENANCE: Suction Cap Cleaning
WEEKLY MAINTENANCE: Exhaust Cap & Lances
WEEKLY MAINTENANCE: Wiper Cleaning
The black silicone lips of the two suction caps should be
cleaned with the Cleaning Stick T dipped in Cleaning Solution.
The four extrusion lances and the 2 holes [see in the blue circle] are located adjacent to the suction
caps at the Exhaust position. They need to be cleaned and free of dried ink. Always clean the rst
hole at the front and go backward while cleaning the lances, carefully nishing with the last hole.
Both white plastic wipers [White &
CMYK] should be cleaned on both
sides and tops with the Cleaning
Stick T dipped in Cleaning Solution.
Use the tip of the Cleaning Stick T
to clean under the teeth of the wiper
holder and remove the dried ink.
Be sure to use the Cleaning Stick T
separately for white ink and color ink.
It is necessary to remove the build-up of excess ink located on
the edges of the caps. It will prevent air leakage and maintain
optimal suction of the pumps. Be careful not to touch the foam.
Keep it at.
Cleaning Stick T
Exhaust Cleaning
Cleaning top of wiper
Cleaning under the
teeth on side of wiper
Direction to clean Four extrusion lances
Suction Cap Cleaning
If a more thorough cleaning is required, refer to removal of wiper in the instruction manual for a detailed cleaning.

10
WEEKLY MAINTENANCE: Nozzle Guard Cleaning
> DO NOT empty the remaining Cleaning
Solution from the Cleaning Cup into the
Maintenance station. Empty it into the
Waste Tank below the printer.
MAINTENANCE PARTS EXCHANGE
Menu
> Always use this menu to perform cleanings or replace parts:
In case of Warning/Error messages for parts replace, please follow the following procedures:
• Wiper Cleaner Replacement
• Flushing Foam Replacement
• Fan Filter Replacement
Maintenance Maintenance Part Clean/Replace
Wipe clean the 2 nozzle guards (1) & (2) with the Clean Stick R dipped in Cleaning Solution.
Make sure to clean and remove any dried ink in the nozzle guard port holes. Clean the
metallic parts (4) & (5) of the printhead in the same way.
A very important place to clean is area (6) between the nozzle guard and nozzle plate.
Be sure NOT to touch the nozzle surface (3) at all.
> Manually move the carriage to such a position that you can perform the cleaning with ease.
WARNING
You will have 15 minutes to complete
any pending items for the maintenance
process. Prepare to complete all items
within the allotted time.
15
Min