Lexmark C762 - Manual (Page 188)

PostScript
4-11
Envelope Tray Support
If manualfeed in statusdict and the ManualFeed page device parameter are false
when the printer receives one of the envelopetray operators listed in
“Table 4-5: Envelopetray Operator Selections” on page 4-12, the printer:
• Sets the PageSize Policy to 0.
•
Checks the active source to see if it matches the requested envelope size. If
the sizes match, the envelope is fed from the active source.
Note: The active source is the last source selected from the printer operator
panel or data stream.
•
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:
— Envelope Feeder
— Multipurpose Feeder
• If the requested size and type are not available from any automatic source,
you are prompted to load the requested envelope size and type in the manual
feed source.
• If the size is still not available, a configurationerror is issued and the print
job is flushed.
If manualfeed or ManualFeed is true , the printer prompts you to load the requested
size manually. If no manual feed exists on the printer, a rangecheck error message is
generated.
The envelope tray the printer selects when it receives an envelopetray operator is
listed in Table 4-5. These operators are 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.