Postscript, Dostartpage, Dosysstart – Lexmark C762 User Manual
Page 200: Duplexer
PostScript
4-23
dostartpage
— dostartpage
boolean
returns a boolean with the same value as the system parameter
DoStartPage
.
The
DoStartPage
system parameter must be present for the compatibility
operator
dostartpage
to be present.
Error:
stackoverflow
dosysstart
— dosysstart
boolean
returns the current value of the
StartupMode
system parameter. A boolean
value is returned:
true
StartupMode set to 1 or 11
false
StartupMode other than 1 or 11
This operator is equivalent to executing the following PostScript emulation
sequence:
currentsystemsparams /StartupMode get
Error:
stackoverflow
duplexer
— duplexer
boolean
queries if a duplex unit is installed. A boolean value is returned on the stack:
true
duplex unit is installed
false
duplex unit is not installed
Note:
For printers that do not support duplexing, this value is always
false
.
Error:
stackoverflow