Brother HL-1040 - Manual (Page 231)

CHAPTER 2 PAPER HANDLING
2-3
Special Paper
Before using paper with holes such as organizer sheets, you must fan the
stack well to avoid paper jams and misfeeds.
Do not use organizer sheets that are stuck together. The paste used might
cause damage to the printer.
Before using any paper, make sure that it is not curled. If it is, you should
straighten the paper as much as possible. Feeding curled paper can cause
paper jams and misfeeds.
Fig. 2-1 Fan the Paper and
Straighten the Paper
The printer can handle 9” width paper. However, you may get stains on
the paper outside 8.5” width or on the back of the paper.
If different types of paper are loaded at the same time in the feeder, it
may cause paper jams or mis-feeds.