HP LaserJet 4250 - Manual (Page 65)

5. Load the paper with the front side facing down and the top edge toward the front of the
tray.
CAUTION Do not fan the paper. Fanning can cause misfeeds.
6. Make sure that the stack is flat at all four corners and that the top of the stack is below
the maximum-height indicators.
7. Slide the tray completely into the printer.
Loading an optional 1,500-sheet tray
The optional 1,500 sheet tray adjusts for letter, A4, and legal sizes. The printer automatically
senses which size is loaded if the tray guides are properly adjusted.
If an optional stapler/stacker is installed, the printer automatically rotates the printed images
180° on all paper sizes, even if the job is not stapled. If you are printing on media that
requires a specific orientation, such as letterhead, preprinted media, prepunched media, and
media with watermarks, make sure that the media is loaded correctly in the tray. (See
Orientation of paper when a stapler is installed .)
CAUTION To avoid jams, do not load trays while the printer is printing.
ENWW Loading trays 53