Brother GT-3 Series Service Manual page 258

A2. Replacing the Tube connecting to the White Print Head
<Note>
The Filter on the White Side was revised to have higher filtering of the White Ink. The new and the previous
Filter Assys are compatible. Mount the new type when you replace the Filter. Refer to the steps in "6-1-33-2.
Replacing the Filter for White".
Parts Code for the revised type:
For W1 / W3: SB4061
For W2 / W4: SB4062
The previous type
If you replace the whole Tubes as well as the Filter Assy and you have already removed the Ink inside the
Tube, refer to the step 10 in "6-1-33-2. Replacing the Filter for White".
B. Color Tube
B1. Replacing the Main Tube (Tube D3XL1600)
<Note>
Be sure to arrange and replace the Tube connecting to the Color Print Head (K/C: SB3964, M/Y: SB3966) as
well as Color Filter (K/C: SB3987, M/Y: SB3988). Refer to "B2. Replacing the Tube connecting to the Color
Print Head" for details.
Disassembling
<Flushing the ink inside the Tube to be replaced>
1.
Confirm if there should be enough room in the Waste Ink Tank (more than 500ml).
2.
Turn ON the printer.
3.
Remove the target Ink Cartridge and insert the Filter Cartridge Color.
4.
Select [Maintenance] > [Load White] from the Menu and press the OK Button.
5.
Select the target color with UP/DOWN Button and press the OK button. The ink starts to be flushed.
6.
Turn OFF the printer after operation. Confirm if all the ink inside the Tube should be flushed by opening
the Front Cover UF. If you find the ink is left inside the Tube, close the Front Cover UF and repeat the
step 2 to 6 until all the ink is flushed out.
7.
Remove the Front Cover UF, Cover UB and Cover Cartridge. (Refer to "6-1-2. Assembling /
Disassembling of the Covers".)
The revised type
GT-3 Series
6. Replacing Parts
249