Canon Colorado 1630 Operation Manual page 129

Print and wind with a locked tension bar
for inside winding:
NOTE
In order to prevent winding issues when winding the media in the opposite direction of
the roll in the drawer, the media has to be taped with enough tapes over the full width
of the roll to straighten the curling edge.
9. Place the tension bar lever in locked position.
Chapter 4 - Handle the media 129