Service manual

PJL overview
When the host computer is connected through the parallel port on the HP LaserJet 1015 printer, Printer
Job Language (PJL) is an integral part of configuration (in addition to the standard PCL). When an IEEE
1284-compliant parallel cable (standard ECP cabling) is attached, PJL provides the following functions:
■ Two-way communication with the host computer through a bidirectional parallel connection. The
printer can communicate information to the host (such as the control-panel status).
■ Isolation of print environment settings from one print job to the next. For example, if a print job
is sent to the printer in landscape mode, the subsequent print jobs print in landscape only if they
are formatted for landscape printing.
NOTE Because PJL commands can be sent to the printer only from an MS-DOS command
prompt and through a parallel cable, only the HP LaserJet 1015 printer offers the PJL feature.
MS-DOS applications are not supported over a USB interface.
ENWW Formatter system 49