Brother GT-3 Series Service Manual page 154

2.
Confirm the margins of the top/bottom and adjust the Platen Sensor Dog if the difference of the
top/bottom margins is more than 3 mm.
5 - 9 = -4mm NG: Adjustment required
Adjustment
1.
Remove the Cover PF and Cover DL. (Refer to "6-1-2. Assembling/Disassembling of the Covers".)
2.
Loosen the one Bolt Socket (1).
3.
Adjust the Platen Sensor Dog (2) as follows and fix it with the one Bolt Socket (1).
<Note>
Fix the Platen Sensor Dog by pushing it to the machining surface (arrow direction) of the Platen Arm (3).
The standard top/bottom positions of the Platen Sensor Dog should be described in Fig A. Adjust it within
the ±2 mm or less.
(3)
9
5
(1)
(2)
( 2)
0 ± 2 mm
Adjust
GT-3 Series
8 – 6 = 2mm OK
A
B
6. Replacing Parts
6
8
145