User`s guide

Appendix A:vvprint/vvlpr Commands & Parameters
30 - PShop User’s Guide
hfont=text times font name Set the font used in headers and footers.
Must be a font present in the Ghostscript
fontmap (see $VV_HOME/ghost-
script/Fontmap).
Ghostscript Printer Con-
trols
bright=n 0 -100 to 100 Set the color transfer curve of an image.
The value is inversely related to gamma.
Higher values generally result in brighter
images The value set here will affect all
color channels (CMYK) unless specific
channels are overridden by the redbal,
greenbal, and bluebal parameters.
redbal=n
greenbal=n
bluebal=n
- -100 to 100 Set the color transfer curve of a specific
color channel: red (or magenta), green (or
yellow), and blue (or cyan). By default,
these parameters take on the value of the
bright parameter. Use the bright parame-
ter to affect the black channel.
SCSI/GPIB Printer
General Controls
bits=n - 1, 8, 24 Set the output color depth explicitly.
Only the Canon CJ-10 can use 1 bit.
Defaults to the color depth of the image.
mode=n - 0, 2, 5 Set the output image composition mode
explicitly. Used in conjunction with the
bits parameter. Values
0 binary (CJ-10 only)
2 grayscale
5color
Parameter(precede each
with a '-')
Default
Value
Acceptable
Values
Explanation