Printer Job Language - Technical Reference Manual

5. The software may resume sending data after it sees the
printer go back online.
6. If the software does not detect the printer going offline
and then back online within 5 seconds of the echo, the
application may assume there is a printer error.
Paper Tray
Configuration
The LaserJet 4000 series paper tray configurations are set
up as follows:
Tray Number Description
0 Multi-purpose tray
1 Manual feed tray
2 Unknown tray
4 Envelope feeder
x Other trays (see below)
Other trays are dynamically assigned at power-up, based on
the tray’s number (for example, if you have a LaserJet 4000
series printer with an optional tray, tray 1 (MP tray) would
be 0, the first cassette number 2, the second cassette
number 3, and the optional cassette number 5 (number 4 is
reserved for the envelope feeder).
A-44 Feature Support