Brother P-touch QL-1050 Service Manual page 111

(7) Set only the backing paper (release paper) of a 62mm x 100mm roll into the
machine in the status of the VR spacer assembled as shown in Fig. 29. (Be sure
to remove the label.)
Make sure to set the backing paper so that the printed section (black sensor mark)
on the paper is aligned with the tray base.
Backing paper
(release paper)
Tray base
(8) If the value indicated in the "Results" column of the VR adjustment tool is in the range
of 218 to 222, the result is OK. If it is out of the range and NG, proceed to the next
adjustment.
Fig. 29
Fig. 30
25
VR spacer
Tape sensor PCB ASSY
* Align the side of the printed
section (black sensor mark) on
the backing paper with the tray
base.