HP 4 FAMILY - Manual (Page 113)

The following table compares the paper/media source
values and the trays they select on various printers.
Value (#) LaserJet 4,
4 Plus, 4V
LaserJet
4Si/4SiMx
LaserJet 5Si/
5SiMx
1 PC Tray Upper
Cassette
Tray 2
(upper drawer)
2, 3
(manual
feed)
MP Tray Manual
Feed Slot
Tray 1
(right side,
manual feed)
4 MP Tray
as
Cassette
Lower
Cassette
Tray 3
(lower drawer)
5 LC Tray First Tray of HCI
8 N/A N/A Tray 1
(right side,
normal)
Printer-Specific Differences 2-77