tjfilter(1L)

NAME
Tjfilter - Bitmap lpr filter for the HP ThinkJet printer.

SYNOPSIS
tjfilter [ -r ]

DESCRIPTION
Tjfilter reads its standard input which is expected to be a one bit deep bitmap image in mgr format and transforms it for printing on an HP ThinkJet printer. If -r is specified, the bitmap is reversed (ala a photographic negative). For bitmaps which are wider than 640 dots, but less than 640 dots high, tjfilter calls rotate(1L) in order to fit the bitmap on the printer.

Tjfilter is normally used as the vf filter in the HP ThinkJet printcap entry: ...:vf=/usr/local/bin/tjfilter:...

BUGS
The HP Thinkjet printer can print a maximum of 640 dots per line. Bitmaps that don't fit get truncated.

SEE ALSO
bitmap(5L) rotate(1L) lpr(1L)