Technical information

TROUBLESHOOTING
165
No inbound fax notification for some faxes
Problem : When routing the inbound faxes as pdf files (fmt-pdf value for the rfm tag), the conversion from .tif to
.pdf can fail for some specific inbound faxes with low resolution. When this conversion fails, no email is sent to the
user and the inbound fax does not reach the mail box of the user.
In VSI-FAX version 6.0 and on, the received .tif files are pre-processed before being converted to .pdf in order to
avoid conversion errors.
Printing problems
Problem
The vfxprint output to an HP LaserJet printer is unreadable.
Solution
The PCL output from vfxprint requires an eight-bit binary interface with no translation of any kind by the printer
driver. This is usually controlled by the stty command, and features such as parity, tab expansion, or NL-to-CRLF
translation will play havoc with the binary data. A completely raw mode must be selected. Tracking this down usually
requires system administration experience, but there are steps you can take to fix this problem.
The line printer spooler system provides a shell script, specifically an interface script, that is responsible for routing
the data to the printer. The lp command has the -o argument that permits the passing of arbitrary options to this
script, and many standard interfaces support some way of selecting this raw mode.
While debugging the lp spooler interface scripts is well beyond the scope of this document, users with administrative
experience can usually look at the script and find the way to do it. Look for raw or graphics options that directly or
indirectly set the-opost stty option.
The normal interface scripts are stored under the /usr/spool/lp directory, in a sub directory that depends on the
operating system version. Before System V Release 3.2, the interface sub-directory contained the scripts, and
after 3.2 they are kept in the admins/lp/interfaces subdirectory.
Some systems support the use of the lp -oraw command to indicate raw data being sent to the printer.
Miscellaneous problems
Problem
A received fax appears stretched or expanded.
Solution
The original fax was probably sent in standard resolution mode and should be resent in fine resolution mode. For
example:
vfx -n555-1212 -E fine file.tif
Problem
Accentuated characters are deleted from the document. For example, you submit a TXT file to be sent by fax and
some accentuated characters are missing from the resulting TIFF file.
Solution
You have to change the symset on the VSI-FAX server. For this, run the
lib/fxpcl/symset 0n (zero n) command on the VSI-FAX server.