Brother HL-3450CN - Manual (Page 66)

CHAPTER 3 BEFORE WORKING WITH THE PRINTER
3-10
Note
If you use paper that does not meet the specifications listed in this User’s
Guide the life of the various consumables and parts may be reduced.
! Caution
When you feed thin paper in the Long Edge Feed direction, paper jams may
occur. If a paper jam occurs, feed the paper in the Short Edge Feed
Direction.
Using Transparencies
When you print on transparencies that have a line tape on the edge, be
sure to remove the tape before loading.
If you do not remove the tape, the transparency may skew.