ln01of(8)ln01of(8)Nameln01of - LN01(S) laser printer filter
/usr/lib/lpdfilters/ln01of [-c] [-nlogin] [-hhost] [-wwidth] [-lnum]
[-iindent] [accounting file]
The filter is used to filter text data destined for the LN01 and LN01S
laser printers. The filter handles the device dependencies of the
printers and performs accounting functions. Accounting records are
written to the file specified by the af field in at the time of comple‐
tion for each job.
The filter can handle plain ASCII files and files that have been pre‐
processed by nroff. Since nroff only deals with monospaced characters
this limits the number of fonts that will work effectively. The fonts
and font selection files are in The ln01of filter translates nroff con‐
trol sequences for underlining into the correct LN01(S) control
sequences, but cannot handle superscripting and subscripting. It will
pass through any escape or control sequences.
The filter can be the specified filter in both the of and the if fields
in the file, see When both fields are specified the of filter is used
only to print the banner page. It is then stopped to allow the if fil‐
ter access to the printer. The if filter maintains accounting informa‐
If the of field is the only one specified the filter is used to print
the banner page. It is then stopped and restarted. This allows the of
filter to be used to maintain accounting information.
If the if field is the only one specified the banner page will be sent
directly to the printer. If the printer has been left in an undeter‐
mined state the banner page may not print correctly.
The best results will be obtained when the filter is specified in both
the of and if fields. For a more detailed discussion on filters see
the ``Line Printer Spooler Manual'' in the ULTRIX Supplementary Docu‐
ments, Volume 2: Programmer.
The arguments passed to the filter depend on its use. The of filter is
called with the following arguments:
The width and length values come from the pw and pl fields in
the database. The if (or restarted of) filter is passed the
ln01of-c -nlogin -hhost -wwidth -lnum -iindent accounting file
The -c flag is optional, and supplied only when control charac‐
ters are to be printed, that is, when the -l option of is used
to print the file. The -w and -l arguments are the same as for
the of filter, however, they may have different values if the -w
and/or -z options of were used to print the file. The -n and -h
arguments specify the login name and host name of the job owner.
These arguments are used to record accounting information. The
-i option specifies the amount of indentation to be used. The
last argument is the name of the accounting file specified from
the af field in the database.
The lf field (default /dev/null) in the database specifies error log‐
ging file name.
Printer capabilities database
lpr(1), pr(1), printcap(5), lpd(8), MAKEDEV(8), pac(8)
``Line Printer Spooler Manual,'' ULTRIX Supplementary Documents,
Volume 2: Programmer