lpfilter(1) lpfilter(1)
NAME [Toc] [Back]
lpfilter, divpage, fontdl, lprpp, plotdvr, printstat, reverse -
filters invoked by lp interface scripts
SYNOPSIS [Toc] [Back]
/usr/lbin/divpage [-p | -l] [-h | -q] [-nFontID] filename
/usr/lbin/fontdl [-nFontID] [-l] [-p] filename
/usr/lbin/lprpp [-i] [-o] [-e] [-lnn] [-n] [-p]
/usr/lbin/plotdvr -lrequest_id -uusername [-e] [-f] [-i] filename
/usr/sbin/printstat -lrequest_id -uusername filename
/usr/sbin/reverse [-l page_length]
Remarks [Toc] [Back]
The structure of these filters is currently under review. They may
become obsolete or be restructured in a future release.
DESCRIPTION [Toc] [Back]
Various filters are used by the lp subsystem to obtain specialized
behavior for specific types of devices or data. This entry describes
currently supported filters.
A number of these filters use a specified username and filename to
determine the location of the user who originated the print message.
The filename is used to determine the hostname of the system where the
request originated, and must have the form [dirname]/d?Annnhostname or
[dirname]/dAnnnnhostname, where dirname is not a path name, but only
the name of the basename's parent directory. filename meets this
requirement when it is set to $6 in the interface script for the
printer.
divpage
Provides capabilities for printing multiple pages per sheet and
selection of built-in fonts.
Options:
-p Set mode to portrait (default).
-l Set mode to landscape.
-h Print half pages (default).
-q Print quarter pages.
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-nFontID Use font number FontID. Default is 0. Causes the
string EC(FontIDX to be sent to the printer.
fontdl
fontdl downloads the font contained in filename to a printer connected
to standard output.
Options:
-nFontID Specifies the ID number by which the font will be
referenced. Default is 0.
-l Specify landscape mode. Default is portrait.
-p Specifies proportional spacing. Default is fixed.
lprpp
This is a filter that converts backspace overstrike to line overprint
with horizontal print positioning to enhance bold print. This
functionality is required on printers such as the LaserJet, which
cannot produce bold print by overstriking.
Options:
-i Converts <ANYCHAR> to <ANYCHAR><BACKSPACE>_ to
italicize ANYCHAR. Also properly italicizes
overstruck (bold) characters. Does not work
correctly for "hashed-overstrike" such as:
<ANYCHAR><BACKSPACE><DIFFERENTCHAR><BACKSPACE>_
-o Prints only the odd numbered pages. Used with -e
for double-sided printing.
-e Print only the even numbered pages. Used with -o
for double sided printing.
-lnn Specifies the page length, in lines. Default is
60 unless -n or -p is selected, in which case it
is 66.
-n Specifies nroff mode for printing output of the
nroff command. Prints 66 lines per page with the
first line appearing on logical line 4 of the
printer.
-p Specifies pr mode for printing output from the pr
command. Prints 66 lines per page with the first
line appearing on logical line 3 of the printer.
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lpfilter(1) lpfilter(1)
plotdvr
HP-GL plotter filter. This filter scans the data for "PG" commands
(paper feed). When this data is encountered, the filter strips it
from the data stream and informs the requesting user of the need to
change paper in the plotter.
Options:
-lrequest_id Specifies the printer request ID and is used in
various messages regarding the plot request.
-uusername The requesting user's login name, used to
communicate with the user regarding the request.
-e Specifies the use of escape sequences, rather than
HP-GL commands, to determine plotter status.
-f Plot without stopping for paper changes. The "PG"
commands are not stripped from the data stream and
the user is not notified of them. This option is
used on plotters capable of automatic page feed.
-i Prevents initialization of the plotter.
printstat
Interrogates an RS232 printer as to its status, and does not return
until the printer is ready. If the printer is off-line, out of paper,
or disconnected, the submitter of the print request is notified of
this condition periodically until it is corrected. When the printer
is ready to print, the command exits.
Standard input and standard output must both be connected to the
serial printer device.
This program uses the send-status command EC?D1? to determine status.
Not all serial printers respond to this command. Only the following
configurations support this command:
_________________________________________
| Printer | Comments |
|_____________|__________________________|
|LaserJet | Not supported |
|LaserJetII | Supported |
|LaserJetIID | Requires HP26013A module |
|LaserJetIIP | Not supported |
|LaserJetIII | Requires HP26013A module |
|LaserJet2000 | Not supported |
|_____________|__________________________|
Options:
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-lrequest-id Print request ID used in various communications
with the user.
-uusername The requesting user's login name, used to
communicate with the user regarding the request.
reverse
Prints the data appearing on the standard input in reverse page order
to the standard output. This command can handle up to 2000 pages.
Options:
-lpage_length Specifies the page length, in lines. Default is
66.
DIAGNOSTICS [Toc] [Back]
Error and diagnostic messages appear on the printed output, on the
user's terminal, or are mailed to the user, depending on
circumstances.
WARNINGS [Toc] [Back]
There is little consistency in the interface to these filters.
SEE ALSO [Toc] [Back]
lp(1), lpadmin(1M).
Managing Systems and Workgroups.
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