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PostScript paper tray support
When the printer receives one of the operators listed in “Tray selected with tray operators” on page 14, it performs
the actions listed in this section. This paper tray selection process ends when 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, then the printer sends a message to load the requested size in the manual feeder 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, then the paper is fed from the active source.
Note: The current active tray is the last source that was selected from the printer control panel or by the printer
language.
• If the requested size and the size loaded in the active source do not match, then 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, then the following search order is used:
– Tray 1
– Tray 2
– Tray 3
– Multipurpose feeder
– Tray 4
– Tray 5
• If the requested size cannot be located in any automatic source, then a configurationerror is issued and the job is
flushed.
For printers that support automatic two‑sided printing (duplexing):
• Automatic two‑sided printing is not supported for custom-size paper or for envelopes in the multipurpose feeder.
Automatic two‑sided printing is supported from the multipurpose feeder for all other papers.
• If the paper source is changed before the back side of a two‑sided page prints, then 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.
When these operators are used, it is equivalent to executing the following PostScript emulation sequence:
<< /PageSize [x y]/ImagingBBox null /Policies << /PageSize 0>> >>
setpagedevice
where x y are the PageSize in points.
Tray selected with tray operators
= Supported
X = Not supported
Printer model
Operator Tray selected (corresponding
image size is set)
C746, C748 X746, X748
11x17tray Tray with 11 x 17‑size paper XX
a3tray Tray with A3‑size paper XX
PostScript (PS) emulation 14