Brother P-touch QL-700 Service Manual page 35

(3) Turn the upper cover upside down, and then pull out the flat cable of the tape
sensor PCB ASSY from the rib of the back side of the upper cover.
Flat cable of the tape sensor PCB ASSY
Rib
Fig. 3.4-21 Disassembling the Upper Cover and the Under Cover (2)
(4) Turn the upper cover upside down, and then remove the two screws, and then
remove the insert guide from the upper cover.
Fig. 3.4-22 Disassembling the Upper Cover and the Under Cover (3)
Screws
III - 17
Upper cover
Insert guide
Upper cover