PostScript
4-21
Paper Tray Support
When the printer receives one of the operators listed in Table 4-10: “Tray Selected with
Tray Operators” on page 4-22, it performs the actions listed as follows. This paper tray
selection process ends as soon as a suitable paper source is chosen and paper is fed
from this tray.
• The printer checks the value of manualfeed in statusdict and the
ManualFeed page device parameter. If either one is true, the printer sends a
message to load the requested size in the manual feed tray or multipurpose
feeder.
• The PageSize Policy is set to 0 by means of setpagedevice.
• The printer checks the paper size loaded in the current active source to
determine if it matches the requested size. If the sizes match, the paper is fed
from the active source.
Note: The current active tray is the last source that was selected from the
printer operator panel or by the printer language.
• If the requested size and the size loaded in the active source do not match,
the sources are searched in the order defined by the Priority array in the
InputAttributes dictionary in the pagedevice dictionary.
• If the requested media size is not found by the previous search, the following
search order is used:
–Tray1
–Tray2
–Tray3
– Multipurpose Feeder
–Tray4
–Tray5
• If the requested size cannot be located in any automatic source, a
configurationerror is issued and the job is flushed.
For printers that support automatic duplexing:
• Automatic duplexing is not supported for custom-size paper or for envelopes
in the multipurpose feeder. Automatic duplexing is supported from the
multipurpose feeder for all other papers.
• If the paper source is changed before the back side of a duplexed page prints,
a blank back page prints, the paper source changes, and the information for
the back side of the page is printed on the front side of a page sent from the
new paper source.
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