Lexmark Optra T Reference page 222

setdoret
setdoret —
integer
changes the PQET setting for the next page through the end of the print job.
The integer values allowed are:
turn PQET Off
0
turn PQET On
1
turn PQET On
2
turn PQET On
3
turn PQET On
4
The value you select for PQET returns to the user default setting when the print
job is finished.
This operator is equivalent to executing the following PostScript emulation
sequence:
<<//PostRenderingEnhanceDetails << /REValue integer >> >>
setpagedevice
Errors: rangecheck, stackunderflow, typecheck
setdostartpage
setdostartpage
boolean
sets the DoStartPage system parameter to the value of
DoStartPage system parameter must be present for the setdostartpage
operator to be present. For more information, see "DoStartPage" on page 4-82.
Errors: invalidaccess, stackunderflow, typecheck
4-54
PostScript
. The
boolean