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@PJL JOB
This command informs the printer of the start of a PJL job and synchronizes the job status
information. The printer counts print jobs, including nested jobs, incrementing the job counter
for the @PJL JOB command and decrementing it for @PJL EOJ.
The printer accepts the NAME= parameter and returns the name string in the unsolicited
JOB start status message (if unsolicited job status is enabled). The printer transmits the
unsolicited JOB status message to every I/O channel that has enabled this function. This
message’s format is:
@PJL USTATUS JOB <CR><LF>
START<CR><LF>
[NAME=<job name><CR><LF>]
<FF>
The printer resets the nested job counter whenever it switches the source to a different I/O
channel. This prevents a corrupt job on one channel from disrupting the activities on another
channel.
@PJL EOJ
This command identifies the end of a print job and is a hint for the I/O switching algorithm.
The printer counts nested jobs and recognizes job boundaries when the counter decrements
to zero. The printer ignores isolated EOJ commands. Each EOJ must be preceded by a JOB
command.
@PJL ECHO
This printer supports the ECHO command which transmits its parameters over the I/O
channel to the host that issued the command.
@PJL USTATUS JOB=ON/OFF
This command enables or disables the JOB status for the I/O channel that delivers the
command.
@PJL USTATUSOFF
This command disables the unsolicited JOB status for the I/O channel that delivered the
command. For this printer, it duplicates the function of @PJL USTATUS JOB=OFF, AND
@PJL USTATUS DEVICE=OFF.
NOTE
All commands not supported by this printer’s PJL command set are returned with the
message @PJL XXXX<CR><LF>?<CR><LF>.
406 Chapter 7 Troubleshooting ENWW