Canon W7250 - Manual (Page 148)

Troubleshooting
24
7-24
8
While restraining the center of the roll media, turn the roll holder to
take up any buckle in the media, pull the roll release lever toward you,
then lock the paper guide.
9
Rotate the roll holder in the direction of the arrow, then cut the media
along the edge of the paper guide.
10
After closing the roll media tray, close the tray.
Firmly push the roll media tray completely into the printer.
1~2mm