Printronix T6000 Administrator's Manual page 102

Allows you to choose how the PJL (Printer Job Language) protocol is
handled in the printer.
Disable
Enable
Factory Default
IMPORTANT
102
Application > Control > PJL Control
PJL commands will be ignored and processed like
other emulation data.
PJL commands will be processed.
Disable
This option is not available when the IPDS, TN or
PS/PDF options are installed. For the PS/PDF
option PJL is always available, and for IPDS and
TN options PJL is always disabled.