GIMPPRINT-MEDIATYPES(7) Gimp-Print Manual Pages GIMPPRINT-MEDIATYPES(7)NAME
gimpprint-mediatypes - Gimp-Print media types
DESCRIPTION
Gimp-Print supports many different media types, which are printer type specific. The option names are case sensitive. Two names are
listed for each resolution; the first (short) name is the mediatype, and the second (long) name is descriptive. Not all media types are
supported on all printers.
MEDIA TYPES
Epson and Lexmark (other than the 4076) inkjet printers
Media Type Description
------------------------------------------
Plain Plain Paper
PlainFast Plain Paper Fast Load
Postcard Postcard
GlossyFilm Glossy Film
Transparency Transparencies
Envelope Envelopes
BackFilm Back Light Film
Matte Matte Paper
Inkjet Inkjet Paper
Coated Photo Quality Inkjet Paper
GlossyPhoto Premium Glossy Photo Paper
Luster Premium Luster Photo Paper
Photo Photo Paper
Glossy Photo Quality Glossy Paper
Ilford Ilford Heavy Paper
Other Other
We have found that glossy photo papers not specifically designed for Epson printers generally perform poorly in Epson printers. The ink
tends to pool on the paper, causing muddy shadows and possibly leaving ink on the printer rollers. Use of the highest quality printing
modes (1440x720 highest quality and 2880x720 unidirectional) produces the best result on such papers, probably because printing is slower
and there is more time for the ink to dry.
Canon printers
Media Type Description
-------------------------------------
Plain Plain Paper
Transparency Transparencies
BackFilm Back Print Film
Fabric Fabric Sheets
Envelope Envelope
Coated High Resolution Paper
TShirt T-Shirt Transfers
GlossyFilm High Gloss Film
GlossyPaper Glossy Photo Paper
GlossyCards Glossy Photo Cards
GlossyPro Photo Paper Pro
PCL (Hewlett-Packard and Lexmark 4076) inkjet printers
Media Type Description
----------------------------------------
Plain Plain
Bond Bond
Premium Premium
Glossy Glossy/Photo
Transparency Transparency
GlossyQD Quick-dry Photo
TransparencyQD Quick-dry Transparency
PCL laser printers do not allow specification of any media type.
COPYRIGHT
Copyright (C) 2001 Michael Sweet (mike@easysw.com) and Robert Krawitz (rlk@alum.mit.edu)
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This manual page was written by Roger Leigh (roger@whinlatter.uklinux.net)
SEE ALSO gimpprint-color(7), gimpprint-dithers(7), gimpprint-imagetypes(7), gimpprint-inktypes(7), gimpprint-mediasizes(7), gimpprint-media-
sources(7), gimpprint-models(7), gimpprint-resolutions(7).
Version 4.2.4 25 Nov 2002 GIMPPRINT-MEDIATYPES(7)
Check Out this Related Man Page
GIMPPRINT-DITHERS(7) Gimp-Print Manual Pages GIMPPRINT-DITHERS(7)NAME
gimpprint-dithers - Gimp-Print dither algorithms
DESCRIPTION
Gimp-Print includes several dither algorithms. Dithering attempts to reproduce various shades of gray (or all colors) from only a few dif-
ferent inks (black, cyan, magenta, yellow, and sometimes light cyan and light magenta). The dots can't vary in darkness or size (except
for certain special printers), and so we need to lay down a certain fraction of dots to represent each distinct level. Different dither
algorithms are suited to different purposes, and some are significantly faster than others.
DITHER ALGORITHMS
Dither Algorithm Description
-------------------------------------------------------
Adaptive Adaptive Hybrid
EvenTone EvenTone screening (experimental)
Ordered Ordered
Fast Fast
VeryFast Very Fast
Floyd Hybrid Floyd-Steinberg
For the highest quality, we recommend use of Adaptive Hybrid dithering. For continuous tone images, Ordered works just as well and is
somewhat faster. Ordered dithering yields noticeably inferior results with text and intricate line art, particularly at high resolutions.
EvenTone dithering is a relatively new screening technology developed by Raph Levien. It offers superior smoothness in highlights and mid-
tones, and increased accuracy in shadows, resulting in significantly improved results overall. The version of EvenTone dithering that we
are using is enhanced with some additional improvements we have made. It currently only operates with CMYK (4, 6, or 7 color output) with
RGB input, and should be considered experimental. Note that it is patented (see US patent 5917614), but it is licensed for use with GPL
software. See http://www.levien.com/patents.html for more information.
Fast dithering, which is a simplified version of ordered dither, is significantly faster, but color accuracy is worse, particularly on six
color printers and printer using variable dot sizes. On simple four color printers, the quality is quite reasonable, although color print-
ing will show more speckling in dark tones than Ordered dither. For single dot size printers, printing grayscale, this algorithm yields
almost identical results to Ordered with some performance improvement. On three color printers, the results should be very similar to
Ordered.
Very Fast is even faster than Fast, with even more loss of quality. It shows even more speckling, and the output is heavily patterned. On
laser printers, and possibly on certain kinds of text and line art, Very Fast dithering may actually yield the best quality.
Error diffusion algorithms (Hybrid Floyd-Steinberg is such an algorithm) perform very well at high densities, and are capable of rendering
very fine detail well, but they tend to exhibit artifacts in the form of "waves" or "worms" of dots which results in noticeable texturing
in pale areas. Furthermore, pale areas immediately adjacent to white take a while to "build up" sufficient error to print at all. This is
sometimes called "tearing". Its use is not recommended.
COPYRIGHT
Copyright (C) 2001 Michael Sweet (mike@easysw.com) and Robert Krawitz (rlk@alum.mit.edu)
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This manual page was written by Roger Leigh (roger@whinlatter.uklinux.net)
SEE ALSO gimpprint-color(7), gimpprint-imagetypes(7), gimpprint-inktypes(7), gimpprint-mediasizes(7), gimpprint-mediasources(7), gimpprint-medi-
atypes(7), gimpprint-models(7), gimpprint-resolutions(7).
Version 4.2.4 25 Nov 2002 GIMPPRINT-DITHERS(7)