IBM QMS 4525 - Manual (Page 73)

Printer Job
Spooling
5-3 Printing Your Files
DOC commands prepended to the beginning of the next file (or the
printer's default setup if no DOC commands are used) take effect.
Printer Job Spooling
Another powerful feature of your QMS printer is the ability to “spool”
(temporarily store) jobs received from the host. The printer receives
jobs on a first-in-first-out (FIFO) basis. While it is printing one job, the
printer can also be receiving and processing others. The printer's
message window displays the number of jobs that are currently
spooled or are being processed and printed:
3 ACTIVE JOBS
Part of the printer's internal hard disk is used to increase job spooling
space.
Feeding Paper
You can feed paper through the printer from the two paper input bins
or the manual feed slot. For information on the input bins, refer to the
following discussions on selecting input bins. For information about
feeding paper manually, refer to “Manual Feed” later in this chapter.
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