HP LaserJet 5100 Printer series - Manual (Page 66)

58 Chapter 2: Printing Tasks
ENWW
4 From the software or printer driver, select the desired type and
size of paper.
Note The type and size settings can also be configured from
HP Web JetAdmin for networked printers. See the printer software
help.
To print by type and size, it might be necessary to unload or close
Tray 1, or set
TRAY 1 MODE=CASSETTE from the Paper Handling Menu
in the printer’s control panel. For more information, see page 55.
Settings in the printer driver and software application override
control panel settings. (Software application settings override
printer driver settings.)