HP LaserJet Enterprise 600 Printer M603 series - Manual (Page 98)

4. Load the paper into the tray. Load complete
reams at one time. Do not divide reams into
smaller sections.
5. Make sure that the height of the stack does not
exceed the maximum-height indicators on the
guides and that the front edge of the stack is
aligned with the arrows.
6. Close the door on the tray.
82 Chapter 6 Paper and print media ENWW