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Diagnostic Aids 3-13
4085-001
When each sheet is printed and the engine has placed the sheet in a
printer bin, the print engine sends a “Print Complete” signal to the
printer controller to indicate the associated sheet is complete.
However, since most printer bins are not equipped with sensors to
detect when a sheet has arrived in a bin, many printers use an
existing sensor in the printer’s paper path located closest to the
selected bin as a trigger for this signal. For example, many laser
printer engines send the “Print Complete” signal when the trailing
edge of a sheet crosses the sensor located in the area of the fuser.
When the Cancel Job operation is selected, the printer identifies the
next sheet for which “Print Complete” will be received and cancels
the print job associated with the identified sheet.
Note: The sheet that is currently printing and any other sheets in
the path are canceled and ejected.
Note: Unlike a operator panel reset, the host application should not
be instructed to stop sending printer data when a cancel job
operation is selected.
The cancel job operation is in the control panel JOB MENU. This
menu can be accessed while the printer is in the ready (or idle
state), the waiting state, the busy state, and while many intervention
conditions as well as status conditions are displayed.
When a job is canceled:
• After the printer identifies which job is canceled, the printer
determines whether the canceled job has ended or has been
terminated.
• If the canceled job has ended or has been terminated, all
sheets belonging to the canceled job for which the physical
printing process has not yet begun are canceled, and the printer
immediately begins processing the next print job.
• If the canceled job has neither ended nor been terminated:
– A user may stop the canceled job by executing a Front Panel
Reset operation. After reset processing is complete, the
printer begins processing the next print job.
– If the host computer continues to send data which belongs to
the canceled job, the printer discards the data until the job
ends or is stopped. Once the cancellation processing is
complete, the printer begins processing the next print job.