Brother GTX pro Bulk Manuel utilisateur
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ENVIRONMENTAL CONDITIONS
Ideal Operating Temperature & Humidity
Temperature & Humidity are recorded in the Log le
PRE-TREATMENT RATIO & QUANTITY
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 proling.
1 Part
Brother
Pretreat
Distilled
Water
1:1 Mixed
Pretreat
Solution
1 Part
3
> 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 dene 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
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.
HEAT PRESS SETTINGS FOR PRETREAT CURING
1:1 Mixed
Pretreat
Solution 35
Seconds
75-80
PSI
5-5.5
Bars
360°F
182°C
Conveyor Dryer Settings for Pretreat & Ink Curing
> Conveyor Dryer recommended for high volume printers. See heat press settings below as an alternative.
> Check the REAL temperature with a probe or with strips to ensure proper washability of the print.
Conveyor Dryer Pretreat Curing Conveyor Dryer Ink Curing
1:45
Minutes
3:30
Minutes
320°F
160°C
320°F
160°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.
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WHITE INK AGITATION & SEDIMENTATION
NEVER POWER OFF THE PRINTER
VERY IMPORTANT
The Brother GTXpro B 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).
Before relling the bulk white ink tank, you have to agitate the white ink container. When white
ink is left idle for a period of time, ink separation occurs, where sediments from the ink start to
settle at the bottom of the container. Sediments must be removed through proper agitation of
the container BEFORE lling the White Ink Tank, otherwise, unagitated white ink could create
an inconsistant ow of ink through the lines causing dull prints and potential damage to the
ink delivery system.
HEAT PRESS SETTINGS FOR INK CURING
> Check the REAL temperature of the heat press with a probe or with strips to be sure that your garments
are properly cured for washability.
HEAT
PRESS INK
CURING 35
Seconds
10-20
PSI
0.7-1.4
Bars
356°F
180°C
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CHECKING WHITE INK FOR SEDIMENTATION
Use an agitation machine to properly break up sediment. Dierent types of agitation
machines vary in the time it takes them to properly agitate white ink. A gyroscopic mixer takes
about 5 minutes to agitate, while a vibrating plate can take up to 2 hours.
After agitation, let the white ink settle for 10 minutes. This gives the white ink time to dissipate
any foam that may have appeared during the agitation process.
Turn the container upside down and use a ashlight to view the sediment. Move the
container around gently to clear any foam that has appeared.
A ashlight will review the amount of sediment in the container. Look for dark areas of
more solid material. If ink has no sediment, it is OK to rell the tank. An example is below:
HANDLING INK BEFORE PRINTING
When handling bulk ink containers, you will need specialized tools to help you in your daily
workow. 20 Kg [18 L] bulk ink containers are heavy and cumbersome, which necessitates
the use of both a hydraulic scissor lift and an agitation device. These specialized tools will
help to professionally move and agitate the inks before lling the tanks on your printer.
Hydraulic
Scissor Lift
Agitation
Device
> The shadows of bubbles may be mistaken for sediment after the white ink agitation, so wait until bubbles
disappear before checking the container for sediment.
> To distinguish between bubbles and sediment, lightly shake the replenishment ink container. The shadows
of bubbles move but the shadows of sediment do not move.
Repeat Agitation Steps If Any Sediment Remains
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Adjustable Hydraulic Scissor Lift With Castors
Agitation Devices for White Ink Containers
Two Suggestions for Agitation Devices
This tool will help to move the bulk ink containers into
position to ll the ink tanks cleanly and easily.
To use the adjustable hydraulic scissor lift to help rell an
ink tank, adjust the lift to the appropriate height and guide
the faucet on the ink container directly over the opening
of the ink tank before opening the spout (see photo to the
left). This will keep the ink from spilling on the oor.
We suggest two dierent types of machines to agitate the white ink containers before lling the ink
tank on the printer. These tools will help you to mix the ink homogeneously. Remember that a bulk
ink container of 18 liters is quite heavy and weighs around 44 pounds. Once the non-agitated ink
goes inside the tubes of the printer, it is not possible to remove it and shake it again.
If white ink is not agitated thoroughly, white prints will look faded and gray.
An agitation device must be used, such as a Santint G48 Gyroscopic Paint Mixer for high ink
usage or a tness vibration plate for low to intermediate ink usage. It is best to pick the agitation
device based on how often you will use an 18L container of white ink. You must have a device
available to use even if neither of these examples are purchased.
> White ink needs agitation EVERY TIME before relling the tank.
> White ink containers MUST BE FLIPPED 180° in your stock room once a week.
> Inspect white ink containers for sediment periodically during agitation. Test, as time listed is only recommended.
Santint G48
Gyroscopic
Paint Mixer
Insert the white ink
container inside the
two doors and let
the mixer spin for
5 minutes.
BLUEFIN
Fitness 3D
Vibration
Plate
Just drop the white
ink container on
top of it and let the
vibrating plate run
for up to 2 hours.
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REFILLING PROCESS WITH IC STICK
Because ink is delivered in bulk, you will have to follow the procedure step-by-step to
activate the relling with the IC Stick.
The printer will detect when the ink is lled in any of the tanks
• If the IC Stick is NOT in place, the printer will prompt you for it.
• Even when printer is OFF, the rell will be detected by the GTXpro B.
• The whole process is controlled by the display MENU.
• If the IC Stick is broken or lost, contact support at BrotherDTG.com/Support for a new one.
Be aware of the delay in the printer recognizing the IC Stick before determining that it is broken.
• If the IC Stick is for the wrong color, the printer will detect and trigger an alert.
• Calibration of the ink tanks is necessary once a month.
• In the case of an operator error, the printer will display an alert to protect the GTXpro Bulk.
• Keeping a spare set of ink will help you to not be stopped during production.
Here is an example to show the whole procedure to rell Yellow ink:
REFILLING INK FLOW USING INK REFILL MENU
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REFILLING BULK INK TANKS
REFILLING CLEANING SOLUTION
> CALIBRATION of tank sensor is necessary ONCE A MONTH
> The Internal Tank has a sensor that detects when
empty, however, the Bottom Tank doesn’t have a sen-
sor to detect when empty. It must be visually inspected
and relled when running low to avoid issues.
Relling of the Cleaning Solution is done from the bottom tank. The GTXpro B has an
internal tank which draws from the bottom tank and once empty, it will prompt an error.
When “C.S. Empty” error
shows up on the display,
ll up the tank.
Then select “Filling
solution tank” in the
Menu.
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> CALIBRATION is necessary to keep the ACCURACY of the pressure sensor
INK TANKS CALIBRATION
By performing the calibration, the actual remaining ink amount is matched with the remaining
ink amount detected by the printer.
If calibration is not performed, “Empty error” may be displayed even though a large amount of
ink remains in the tank.
• Warning “Tank correction time” appears once every 30 days
• If you do not perform ink correction for two days, an error will occur and you will not be able
to print
• To solve this error 1010 & 1011, you need to perform a CALIBRATION
ORDER to follow
for CALIBRATION:
Regarding White ink, the number
is dicult to check. If you use a
ashlight, it will be easier.
READING METHOD
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BEST PRACTICE FOR PRINTING - A MUST!
> 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.
Good
Gap
Excessive
Gap
INPUTTING METHOD
CALIBRATION FAQ
• Select the number on the tank where the ink level makes contact
• If the liquid is on the border, please select the larger number
Question: Is it necessary to perform calibration for all colors once a month even though the
indicated remaining ink on the display and on the tanks are not dierent?
Answer: YES. Even if there is no shift at present, all colors need to have calibration
performed for them once a month. This will prevent a shift from occurring. The reason for
performing all colors at the same time is to prevent the number of warnings from increasing.
Question: What if the printer operator inputs the wrong number?
Answer: Enter the menu again and select “Remaining sensor correction”. Then re-enter the
correct values for all colors.
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