QMS 1060, User Manual

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End Job Mode
QMS 1060 Print System Reference 5-22
Virtual Memory Support
Your printer supports virtual memory capabilities for the spooling
buffer (Administration/Memory/K Mem for Spool menu) and the dis-
play list (Administration/Memory/K Mem Display menu) clients when
a hard disk is installed and disk swapping is enabled.
These capabilities extend the amount of memory available for certain
supported features, such as spooling to the spool buffer. If available,
a hard disk can supplement this client with additional memory needed
for spooling. See the “Hard Disk Management” earlier in this chapter.
End Job Mode
When sending print jobs through the serial and parallel protocols,
some applications and their printer drivers append an end-of-docu-
ment command (EOD) to each print job to ensure that each file prints
correctly. The reason for this is that some protocols and print queuing
systems send print jobs to the printer as one continuous data stream
(one print job immediately following another).
But the problem with this system is that some applications are limited
by the printer language and are unable to produce an EOD com-
mand. This becomes even more problematic when you are printing to
a QMS 1060 Print System a series of print jobs in a variety of the
emulations it supports. ESP technology examines the first part of
each print job to determine its emulation. Once the emulation is iden-
tified, the print job processes without further checking. This minimizes
any slowdown resulting from the sensing process. To help ESP tech-
nology determine the proper emulation of successive print jobs, the
printer must be able to identify the end of job for each job.
Therefore, unless a wait timeout (the amount of time the printer is
waiting on data from the host) occurs and ends each print job, or
unless you add an EOD command between each file being printed
through these protocols, some print jobs may be interpreted by the
printer as one job and may “run” together. See chapter 4, “Printer
Configuration,” for more information on emulation timeout.