Brother GTX pro Instruction Manual page 143

(4) Attach the collar.
(5) Attach the platen height adjustment lever to the platen bearing.
<CAUTION>

Attach the platen height adjustment lever to the position shown below. The lever installed in the wrong position will interfere
with the stopper when the platen is attached.
<TIPS>

When adjusting the height, put the latch of the platen height adjustment lever into the groove of the platen bearing.
Platen height adjustment
lever
Platen height adjustment
lever
Stopper
143
Basic printing procedures
Collars
Latch
Groove
X0268
X0269