Lexmark C752 Technical Reference page 206

checkpassword
checks the passwords for both the SystemParamsPassword system parameter
and the StartJobPassword system parameter stored in the printer.
If the form is used, the integer is converted into a string before the
password check occurs. A
specified password matches either password. The boolean value can be:
correct password
incorrect password
After the is returned, the printer waits 1 second before it continues
processing.
Errors: stackunderflow, typecheck
Note: The password is defined as a 4-byte number.
currentfilenameextend
returns a boolean on the stack to indicate whether the extension should be
automatically added to any filename. The boolean value is either:
adds the extension
does not add the extension
See "Filename Extensions" on page 6-10.
Error: stackoverflow
currentmanualduplexmode
queries the current value of the manual duplex mode. An integer is returned on
the stack:
current job manual duplex mode is no manual duplex
current job manual duplex mode is printing .rst sides of job
current job manual duplex mode is printing second sides of job
Error: stackoverflow
4-23
is returned on the stack to indicate if the
PostScript