User`s guide

Appendix D:Troubleshooting
60 - PShop User’s Guide
Possible causes and solutions:
• Your /tmp (the TMPDIR directory) does not have adequate free space. Use
an alternate temporary directory (specified by the TMPDIR variable in the
printer interface script) or increase the amount of space in /tmp.
• You are printing to a SCSI/GPIB printer and there is an old /tmp/gs_errs file
that is not being deleted. Manually delete this file and retry.
• You are printing to a SCSI/GPIB printer and there are not enough system
resources to start GhostScript. Free up resources by closing unused programs
or add more RAM or swap space. You may also need to increase the virtual
memory space allowed for vvprint and Ghostscript execution.
Symptom:
A text file containing non-English characters (e.g. extended ISO-8859-1
characters) does not print correctly.
Possible causes and solutions:
• The default filter, “mpage”, does not support these characters. To change the
filter, edit the printer interface script, and assign the VVP_FILTER variable
to another filter that converts extended character sets correctly. An example
of such a filter on Solaris systems is “postprint”. Alternatively, you can
convert the text file to PostScript yourself and send the PostScript document
to the PShop print queue.
Symptom:
Printouts on a particular printer are too dark, too light, etc.
Possible causes and solutions:
• The most generic way to compensate for a printout being too dark or too light
is to add the “brightness” option to the vvprint command line. However, this
transformation applies equal values to all colors and often the resulting
printout appears faded. There are other possible modifications for better
control. For Kodak or CJ-10 SCSI/GPIB printers, try turning on/off the
“cio_lut” option command line option in vvprint. For Kodak SCSI/GPIB
printers, refer to the section on Kodak lookup tables for uploading custom
lookup tables. For some HP and Epson inkjet printers, some color correction
schemes are specified in a “upp” file (this is simply a command line file for