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pnm2ppa(28 Oct 2000)							     pnm2ppa(28 Oct 2000)

NAME
       pnm2ppa - convert portable anymap (PNM) images to HP's PPA printer format.

SYNOPSIS
       pnm2ppa [options] [ -i infile ] [ -o outfile ]

DESCRIPTION
       Reads  portable	anymap	(PNM) format as input. Binary PNM formats pnmraw = {ppmraw (color
       pixmap), pgmraw (graymap), and pbmraw (black-and-white bitmap)}	are  strongly  preferred.
       Output stream can be locally processed by Hewlett-Packard's Printing Performance Architec-
       ture (PPA) printers (HP DeskJet 710C, 712C, 720C, 722C, 820C, and 1000C series).

       (PNM format output can be produced from PostScript(tm) input  by  the  GhostScript  output
       devices	"pbmraw",  "pgmraw"  or "ppmraw",  or by "pnmraw", which will choose one of these
       formats as appropriate for the document.)

OPTIONS
       -b bottommargin
	      Sets the bottom margin bottommargin in units of 1/600 inches (e.g.,  -b 150  corre-
	      sponds to 0.25").

       -B blackness
	      Sets the black ink density blackness in drops per pixel (0,1,2,3,4).

       --bi   Force bidirectional print sweeps.

       --bw   Disables	the  color  cartridge; will print in grey scale using only the black car-
	      tridge.

       -d     Displays the current configuration.

       --eco  Econofast mode: lower print quality that is faster and saves ink.

       -f configFile
	      Re-reads	configuration  from  configFile  (after   initially   reading	it   from
	      /etc/pnm2ppa.conf).

       -F GammaFile
	      Overrides  reading  the  color-correction table (Gamma curve) from the default file
	      /etc/pnm2ppa.gamma, and uses GammaFile instead.

       --fd   Enable fast ordered dithering instead of using the slower,  but  beautiful,  Floyd-
	      Steinberg dithering. (Has no effect in --bw mode.)

       -g     Prints  a  page of color intensity samples (for comparison with gamma.ppm data pro-
	      duced by calibrate_ppa).	 This  is  part  of  a	color-correction  procedure;  see
	      COLOR.txt for more details.

       -h, --help
	      Displays program usage.

       -i infile
	      Input  file  infile  is  either  a  path	to  a  PPM file, or '-' to indicate stdin
	      (defaults to stdin).

       -l leftmargin
	      Sets the left margin leftmargin in units of 1/600 inches (e.g., -l 150  corresponds
	      to 0.25").

       --noGamma
	      Switches off any color-correction.

       -o outfile | -
	      Output file outfile is either a path to a file or device, or '-' to indicate stdout
	      (defaults to stdout).

       -p     Disables the black ink cartridge; i.e.,  print  using only the color ink cartridge,
	      even  for  printing  "black".  This might be useful for printing high-quality color
	      images.

       -r rightmargin
	      Sets the right margin rightmargin in units of 1/600 inches  (e.g.,  -r  150  corre-
	      sponds to 0.25").

       -s papersize
	      Sets  the default paper size (now used only for color-correction output produced by
	      the -g option).  In normal use, pnm2ppa now instead reads the paper dimensions from
	      pnm  input  file	headers,  and  checks  that it is a valid papersize for the given
	      printer model.  Possible values for papersize are a4 (A4), letter or us (US Letter,
	      8.5"x11"), legal (US Legal, 8.5"x14").  The default is US Letter.

       -t topmargin
	      Sets  the  top  margin topmargin in units of 1/600 inches (ie -t 150 corresponds to
	      0.25").

       --uni  Force unidirectional (left to right) print sweeps.  Useful if "shearing" is a prob-
	      lem for high quality color images.

       -v printertype
	      Selects the printer model.  Possible values of printertype are: 710, 712, 720, 722,
	      820 and 1000.  The default is the HP DeskJet 7X0 Series (710, 712, 720, 722).

       --verbose
	      Displays the program's System Log messages on the standard output, as well.

       --version
	      Displays the program's version information.

       -x xoffset
	      Sets the x-offset xoffset from the left of the page. Units are 1/600 inches.

       -y yoffset
	      Sets the y-offset yoffset from the top of the page. Units are 1/600 inches.

NOTES
       The default configuration file /etc/pnm2ppa.conf  is read in first. Command line arguments
       then modify the resulting definitions.

       The  -v	option	resets	all  definitions  (margins,  offsets,  etc.)  back to the inbuilt
       defaults for that printer and should be used before subsequent -b, -l, -r, -t, -x  and  -y
       arguments.

SEE ALSO
       pnm(5), ppm(5), pbm(5)

FILES
       /etc/pnm2ppa.conf
	      Default configuration file.

       /etc/pnm2ppa.gamma
	      Default Gamma (color-correction) file.

AUTHOR
       This code is licensed under the GNU Public License version 2. See LICENSE for details.

       (c) 1998-1999  Tim Norman

       (c) 1999  Giorgio Marzano

       (c) 1999  Andrew van der Stock

       (c) 1998-2000  Various authors for many, many fixes

HISTORY
       This  program was originally pbm2ppa, written by Tim Norman. It originally supported black
       and white output on the 820 series.  Tim added nascent color support in early 1999. In May
       1999,  Giorgio  Marzano started making real headway in getting color support working prop-
       erly. Andrew van der Stock has maintained the code since  September  1999,  and	 made  it
       available at http://sourceforge.net/projects/pnm2ppa.

BUGS
       Faint  horizontal  lines marking boundaries between print sweeps may be visible.  For best
       results when printing images, use the options  -p --uni .

									     pnm2ppa(28 Oct 2000)
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