HP LaserJet Enterprise 600 Printer M603 series - Manual (Page 97)

Load an optional 1,500-sheet tray
The optional 1,500 sheet tray adjusts for Letter, A4, and Legal sizes. The product automatically senses
which size is loaded if the tray guides are correctly adjusted.
CAUTION: To avoid jams, do not load trays while the product is printing.
CAUTION: Do not fan the paper. Fanning can cause misfeeds.
1. Press the release and open the door of the
1,500-sheet tray.
2. If paper is in the tray, remove it. When paper
is in the tray, the guides cannot be adjusted.
3. Pinch the guides at the front of the tray and
slide them to the correct paper size.
ENWW Load paper trays 81