Brother GT-341 Instruction Manual page 156

7. Troubleshooting
(12) Remove the silicone tubes that are attached the screws under the Carriage PCB (left), and remove the holes
of the cover (right), and remove the plastic cover.
(13) Pull out the black tabs at the both edges of Flat Cable of the Print Head to the front side of the printer, and
remove the Flat Cable (the following example: Magenta).
(14) Rotate the Lever to your side that fixes the Print Head. Move it to your side.
146
Lever
GT-3 Series