Canon Satera LBP9500C User Manual page 73

3
 Slide the side paper guides.
72
About the paper loading orientation
Load paper in landscape orientation (when the long edges of the paper are parallel
to the front side of the printer) if you do not use the LIPS LX printer driver.
Also, be sure to load paper in portrait orientation (when the short edges of the
paper are parallel to the front side of the printer) if all the following conditions are
fulfilled.

The LIPS LX printer driver is used.

[

The long edges of the paper is 297.0 mm or less.
When using paper that has been poorly cut
If you use paper that has been poorly cut, multiple sheets of paper may be fed at
once. In this case, fan the paper thoroughly, and then align the edges of the stack
properly on a hard, flat surface.
NOTE
When printing paper with a letterhead or logo
See "Paper Loading Orientation" (p. 88) and load the paper in the proper
orientation.
Align the paper guides with the loaded paper.
(1) Hold the lock release lever.
(2) Slide the paper guides to be aligned with the loaded paper.
† The side paper guides move together.
(2)
] is set to [
(1)
].