Brother QL-650TD Guide De L'utilisateur page 50

46
STEP4 Maintenance and Troubleshooting
2
Open the DK Roll cover and pull up the roll
release lever to the up position and remove
the DK Roll.
3
Turn the
coin and remove the battery cover.
When turning the battery cover, do not rotate it past the position of
on the printer, as this may cause a malfunction.
4
As shown below, press C part of battery and remove the battery.
By pressing C part of battery, the battery lifts up, so it can be removed easily.
5
Install the new battery, taking care to ensure the correct polarity of
the battery.
mark (A) on cover to mark (B) on the printer using a
mark (B)