Brother GTX pro Manuel d'instructions

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

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.

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).

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

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

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

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

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

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.

Min

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.

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

> 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.

Min

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