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GPrint 2.03
Black and White Graphics Print Utility for Epson FX printers.
Copyright (c) 1988, Peter Cherna
Documentation as of October 6, 1988.
Contents:
1. Introduction
1.1. Changes Since Version 2.00
1.2. Overview
1.3. Features
1.4. Using GPrint
2. Print Densities
2.1. Low Density
2.2. Medium Density
2.3. High Density
2.4. Ultra Density
3. Print Qualities
3.1. Draft Quality
3.2. Good Quality
3.3. Special Smoothing
4. Summary of Print Modes
4.1. Physical Print Densities
4.2. Relative Time for a Given File
4.3. Relative Time for a Given Area
5. Other Options
5.1. Offset Image
5.2. Center Image
5.3. Invert Image
5.4. Form Feed
5.5. Wide-Carriage Printers
5.6. Suppress Reverse Feeds
5.7. Full Blackness
5.8. Aborting a Print
6. Technical Notes
6.1. Printer Requirements
6.2. Paper Movement
6.3. Perforations
7. Future Enhancements
7.1. Printer Driver
7.2. Workbench Version
7.3. Improved Abort
7.4. Other Printers
8. Final Notes
1. Introduction
1.1. Changes Since Version 2.00
A single bug was discovered in GPrint 2.00. If the width of
the picture to be printed is not a multiple of sixteen
pixels, then GPrint would not print correctly in Smooth
quality (option S). This has been corrected in version 2.03.
Now, the picture or brush to be printed may be any arbitrary
size.
A special algorithm has been implemented which reduces the
amount of blackness in Smooth quality (option S). The amount
of ink which is placed in solid areas is reduced by up to one
half, without any change in the picture quality. The
additional processing needed for this algorithm does slow
GPrint down slightly, however the algorithm is so successful
that it has been implemented as the default. If you prefer
the full blackness as was found in GPrint 2.00, use option B.
(See Section 5.7).
GPrint 2.03 now processes blank lines in a picture (such as
often remain at the bottom of a picture file) about four
times faster than it did in version 2.00.
1.2. Overview
GPrint is a utility that takes any two-colour IFF picture
file as input, and prints in on an Epson FX-series or
compatible printer. The philosophy behind GPrint is to offer
the highest possible quality of graphics printing with the
greatest ease. A cornerstone of GPrint is that it provides a
direct pixel-for-pixel copy of the picture file on the
printer, so that parallel lines, for example, remain of equal
thickness.
To provide maximum flexibility, GPrint offers a total of nine
print modes, consisting of four print densities and three
printing qualities (not all combinations are allowed). The
print densities range from 80 by 72 screen pixels per printed
square inch all the way up to 240 by 216! The highest print
quality incorporates a special smoothing algorithm to greatly
improve the output look. It is especially effective on text,
curves, and diagonal lines or boundaries.
GPrint is an essential utility for anyone with an Epson
compatible printer who has a need to print graphics,
diagrams, charts, or who uses desktop publishing packages
such as Gold Disk's PageSetter. It is offered as shareware,
meaning that if you find this program useful, you are asked
to register by sending a contribution of $10 to:
Peter Cherna
5511 Westbourne Ave.,
Cote St. Luc, Quebec
Canada
H4V 2G9
Registered owners will be kept abreast of any new versions or
updates. Without your support, I cannot afford to work on
improvements or other software, so please register!
1.3. Features
GPrint is designed to provide the maximum printing speed and
quality. For speed, for example, it doesn't ask the print-
head to pass over white space to the right of the picture.
Nor does the print-head move laterally over completely blank
lines. In addition, if there are several blank lines in a
row, GPrint queues up this information, and issues one or
more large paper feeds instead of a stream of little paper
feeds.
For the best possible printed look, GPrint avoids asking the
printer to perform minuscule paper feeds of the order of one
or two hundredths of an inch, which the printer can only
perform with some potential for misalignment. Instead, using
a special algorithm, it layers its print passes evenly,
avoiding tiny paper feed commands, thereby providing a more
clean-looking output.
GPrint provides numerous print densities and qualities to
meet various needs. The resulting print densities go from
the relatively low (80 by 72 pixels per square inch) all the
way up to the very high (240 by 216 pixels per square inch).
The user can then trade off picture size and picture quality
vs. time needed for the print. Additional options include
setting a left margin, centering the picture, inverting the
picture, and issuing a final form feed after printing.
Providing the ability to print a pixel-for-pixel copy of a
picture file gives the ability to get the best possible print
quality. Every printed pixel can be controlled; it is just
taken from the picture file. Using the medium print density
for example, a full 8" by 11" page can be prepared in Deluxe
Paint II from Electronic Arts (960 pixels across by 792 down)
or taken from the output of the PageIFF utility of
PageSetter.
However, this is not even the highest print density an Epson
printer is capable of. At the highest density, such a
picture file would occupy only one-sixth of a printed page!
How can one prepare a large image at a high print density
without resorting to an unwieldy sized file (1920 by 2376
pixels) that many programs can't handle? (Deluxe Paint II
can't, PAR's Express Paint 2.0 can, given enough memory.) To
allow such work, GPrint offers its Special Smoothing mode,
which doubles the horizontal and vertical print densities
without changing the size of the final printed image or
requiring a larger picture file. The simplest way to do this
would be of course to just repeat each printed dot
horizontally and vertically, but this would produce slightly
blocky results. The smoothing mode produces somewhat more
pleasing results, as demonstrated on the letter "g" from the
Topaz 8 font:
*** ** ****** **** ***** ***
** ** ****** **** *** * ***
** ** **** **** *** ***
**** **** **** *** ***
** ** **** **** *** ***
***** **** **** *** ***
******** *******
******** * ***
**** **** *** ***
**** **** *** ***
********** *********
**********
Original Repeat horiz&vert Smoothing
To really appreciate the power of the smoothing algorithm,
try out these modes on some of the sample files!
1.4. Using GPrint
GPrint runs from the CLI. To activate it, type:
GPrint filename [L|M|H|U] [D|G|S] [Onn|C] [I] [F] [W] [R]
Where "filename" is the name of the IFF picture or brush file
you wish to print. Only the first bit-plane of the file is
significant, so normally a single-bit-plane file (2-colour
picture) would be used. The file may be of any size, memory
permitting, so oversize bitmaps from Express Paint 2.0 or
Deluxe Photo Lab may easily be used.
Where the options are as follows:
L: Low Density (80 x 72 ppsi)
M: Medium Density (120 x 72 ppsi)
H: High Density (120 x 108 ppsi)
U: Ultra Density (240 x 216 ppsi)
D: Draft Quality (use with L, M, H, or U)
G: Good Quality (use with L, M, or H only)
S: Special Smoothing (use with M or H only)
Onn: Offset nn tenths of an inch (eg. O5 gives 1/2 inch)
C: Center Image
F: Issue form feed after printing
W: If you are using a wide-carriage (13.6") printer
R: Suppress reverse feeds (for MX or RX printers)
B: Full-strength blackness (allowed with S only)
Notes: - Options can be given in any order, and in either
upper or lower case.
- 'ppsi' stands for screen pixels per square inch,
horizontal x vertical.
- The print mode defaults to M,D.
Example: To print the picture "df1:MyPicture" in high density
with special smoothing, indented 1.5 inches, with a form feed
issued after printing, you would type:
GPrint df1:MyPicture h s f o15
2. Print Densities
GPrint offers four print densities, the choice of which will
determine how large a particular picture will appear on the
printed page, as well as its aspect ratio (whether it will appear
squashed, stretched, or about the same as it looks on the screen.)
2.1. Low Density
Low density (option L) puts 80 screen pixels per printed inch
horizontally, by 72 vertically. On an 8" printer, a picture
640 dots across will span the page. The aspect ratio of this
density is with 5% of the aspect ratio of a 320x200 or
640x400 screen, so objects that are square on the screen will
be almost exactly square on the printer.
At this density, it is possible to print in draft or good
quality, but not with special smoothing.
Example:
GPrint df1:MyPicture l
2.2. Medium Density
Medium density (option M or by default) puts 120 screen
pixels per printed inch horizontally, by 72 vertically. When
combined with draft quality this produces the print density
normally thought of as "standard" on Epson printers.
Printing a file produced by PageSetter's PageIFF utility in
GPrint's medium draft mode will produce the same print look
as the direct printed output of PageSetter. Up to 960 screen
pixels will fit on an 8" line. This is a good choice of
print density for general work, with the one caveat that to
create a square on the printer, you must draw a rectangle
that is 5 dots wide for every 3 dots tall, which won't appear
square on the screen.
At this density, all three qualities (draft, good, and
special smoothing) are available. Try printing an existing
PageSetter file (saved via PageIFF) in medium density with
special smoothing. Compare it to draft output.
Example:
GPrint df1:MyPicture m or GPrint df1:MyPicture
2.3 High Density
High density (option H) is another good choice for general
work, and puts 120 screen pixels per horizontal inch, and 108
vertical. The big advantage of high density is that like low
and ultra density, its aspect ratio is within 5% of that of a
320x200 or 640x400 screen. Thus, the horizontal stretch of
the printed copy is barely noticeable. (Squares stay square
and circles stay round.) It is possible to make a picture
file big enough to fill a full 8" page in this resolution in
software such as Deluxe Paint II.
As is the case with medium density, all three qualities are
possible at high density.
Example:
GPrint df1:MyPicture h
2.3. Ultra Density
Ultra density (option U) gives a pixel-for-pixel image at the
maximum physical print resolution obtainable on the FX-series
printers, namely 240 by 216 dots per square inch. This
produces beautifully smooth curves, but be aware that the
largest picture that Deluxe Paint II can handle fills only
about a quarter page at this resolution, and it can be very
difficult to manipulate images large enough to be readable in
this mode. Also, you will want to use some of the largest
fonts available.
As ultra density uses the maximum available print density,
there are no additional printable pixels which could be used
to implement the higher quality modes. Thus, ultra density
only works with draft quality. (But the results are still
excellent, because the density is so high.)
You may find that a solid black area in ultra density is "too
black", and gets smeared where the print-head has passed over
it. If this is the case, use an older, lighter ribbon (which
yours will quickly become if you persist in printing solid
black graphics - a square inch of solid black in ultra
density or smooth quality high density mode uses as much ink
as a double-spaced page of draft-quality text!). The other
choice is to pull the print-head away from the printer, using
the paper-thickness lever on your printer. Of course, you
could also decrease the amount of black in the picture file!
Example:
GPrint df1:MyPicture u
3. Print Qualities
In order to boost the print quality without forcing the user to
switch to a higher density and a larger (possibly unwieldy picture
file), different print qualities are available. It is important
to note that while selecting different print qualities may change
the physical PRINT density, the number of SCREEN pixels per square
inch remains unchanged for a given density. In other words,
changing print quality but not print density will change the look
of the output without changing its size. Higher qualities
naturally take longer to print. Not all qualities are available
in all densities. If you specify an invalid combination, then the
desired density will be taken along with the highest allowed print
quality.
3.1. Draft Quality
Draft quality (option D or by default) can be combined with
all four print densities. This is the most straightforward
density, in which each screen pixel is represented by
precisely one printed dot on the page. It provides the
fastest output for a given density, and is useful in many
cases, including previewing what a final copy (at a higher
quality) might look like (in terms of size). When used with
medium density, it produces a "standard" print resolution,
like that used in PageSetter, for example.
Example:
GPrint df1:MyPicture d OR GPrint df1:MyPicture
3.2. Good Quality
Good quality (option G) improves the appearance of a printed
output by printing each row twice, with the second run just
below the first. GPrint automatically sets the printer for
double the vertical printed dot resolution for that density
in order to make room for these extra dots without changing
the resulting picture size. Good quality may be combined
with low, medium, or high densities, but not with ultra
density.
Example:
GPrint df1:MyPicture g
3.3. Special Smoothing
Think of special smoothing (option S) as being the "near-
letter-quality" of graphics printing. Without any extra work
on the part of the user, and with just a bit of extra
patience for the longer printing times involved, special
smoothing can dramatically increase print quality. Special
smoothing, which works only with medium and high densities,
produces the best possible output by calculating intermediate
dots both horizontal and vertical, based on a special
smoothing algorithm. GPrint automatically sets the printer
for double the vertical and double the horizontal printed dot
resolution for the selected density, in order to make room
for these extra dots without changing the resulting picture
size. For an idea of the power of special smoothing, examine
the sample letter "g" given in Section 1.3, but for a real
idea, print a file with this option.
You will probably use special smoothing along with either
medium or high density for most final work. A brief
discussion is necessary on one potential pitfall. If GPrint
prints a file containing something (such as text) on a
screened background (a light grid of dots), you will find
that the grid dots adjacent to the text appear to "grow onto"
the letters. This is a function of the smoothing algorithm,
which can't tell that these dots shouldn't really be attached
to the letters. To get around this, ensure that there is a
single-pixel white space around each letter. In PageSetter,
for example, it suffices to specify any text placed on a
screened background as being both "reversed" (\r) and
"outlined" (\o), producing black letters (as desired) with
the required white outline (as required). In a Paint
program, the same white space can be created in a number of
ways.
As is the case with ultra density, you may find that a solid
black area in smooth mode is "too black", and gets smeared
where the print-head has passed over it. If this is the
case, use an older, lighter ribbon. The other choice is to
pull the print-head away from the printer, using the paper-
thickness lever on your printer. Of course, you could also
decrease the amount of black in the picture file.
4. Summary of Print Modes
4.1. Physical Print Densities
The four densities, low, medium, high, and ultra, put 80 x
72, 120 x 72, 120 x 108, and 240 x 216 SCREEN pixels per
square inch respectively, regardless of the selected print
quality. However, the different print qualities mean that
the physical PRINT densities vary from this. The following
table shows the physical print densities in dots per square
inch (horizontal x vertical) as a function of the mode:
Draft Good Smooth
Low 80 x 72 80 x 144 -
Medium 120 x 72 120 x 144 240 x 144
High 120 x 108 120 x 216 240 x 216
Ultra 240 x 216 - -
Note: Very few other printing programs or drivers use 144
dots per inch vertical density, and perhaps none use 108 dots
per inch. However, such densities ARE possible on Epson FX
printers and compatibles, and are in fact very useful!
4.2. Relative Time for a Given File
The various print densities and qualities are provided to
give the user maximum flexibility. Of course, for a given
file, some modes take longer than others to print, so the
following table can be used as a guide for how long each mode
takes, normalized so that medium density draft quality is
considered to be unity. (Of course, a given file will
produce a different sized picture depending on the density
chosen.)
Draft Good Smooth
Low 1.5 3 -
Medium 1 2 4
High 2 2 4
Ultra 1 - -
4.3. Relative Time for a Given Area
Since some modes print more compactly than others, the
following table can be used to estimate the time each mode
would take to fill a given printed area (say, for example,
one square inch), normalized so that medium density draft
quality is considered to be unity.
Draft Good Smooth
Low 1 2 -
Medium 1 2 4
High 1.5 3 6
Ultra 6 - -
5. Other Options
GPrint provides several options for added flexibility.
5.1. Offset Image
The Offset Image option (option O) can be used to specify a
desired left margin in tenths of an inch. Use the letter 'O'
(or 'o') followed immediately by the number of tenths of an
inch desired. (No intervening space is allowed; in other
words, "O5" and "o10" are allowed, but "o 5" won't work.) An
offset will cause the printed image to be moved over by that
amount. (If the offset great enough, then the picture will
be clipped on the right.) To get an offset 1.5 inches, use
the following command:
GPrint df1:MyPicture o15
The Offset Image option cannot be combined with Center Image
(see below). If both are specified, only the last one will
be considered.
5.2. Center Image
The Center Image option (option C) can be used to position
the printed image in the horizontal center of the page. Its
use is shown as follows:
GPrint df1:MyPicture c
The Center Image option cannot be combined with the Offset
Image option. If both are specified, only the last one will
be considered.
5.3. Invert Image
The Invert Image option (option I) reverses the
interpretation of black and white in the picture to be
printed. GPrint does not consult the colour palette to
determine which colour is black and which is white. GPrint
by default prints colour 1 as black and colour 0 as white.
This works correctly with later versions of PageSetter's
PageIFF. In a default Deluxe Paint II two-colour screen,
colour 1 will be white, so then anything white on the Deluxe
Paint screen would print in black. If you prefer the "look"
of paper on the screen, exchange the two colours in the
palette (so that colour 0 is black (or dark) and colour 1 is
white (or light)). If you've set things up backwards, or
have an older version of PageIFF, then GPrint will print a
mostly black picture, which not only kills your ribbon very
quickly, but it tends to blot out fine white details such as
small white text on a black background. Use the Invert Image
option to switch this back to normal, as follows:
GPrint df1:MyPicture i
5.4. Form Feed
The Form Feed option (option F) asks GPrint to issue a form
feed after having printed the picture. Note that GPrint does
not reset the printer at the beginning of a print, so the
top-of-form (to which the form feed advances the paper)
remains wherever you set it (i.e. at the paper position when
the printer was last reset or turned on.) To invoke the form
feed option, type:
GPrint df1:MyPicture f
5.5. Wide-Carriage Printers
This option (option W) informs GPrint that you are using a
wide-carriage (13.6") printer, such as the FX-185 or 286.
GPrint will then adjust itself for the extra width, allowing
wider pictures to be printed, and centering pictures
accordingly. If you leave it out, then all pictures will be
truncated at the eight-inch mark. To inform GPrint that you
have such a printer, use:
GPrint df1:MyPicture w
5.6. Suppress Reverse Feeds
This option (option R) is to be used in conjunction with
printers that cannot perform reverse paper feeds, such as the
Epson MX and RX series. GPrint uses reverse paper feeds to
perfectly align the paper before and after a picture is
printed. If your printer does not support reverse paper
feeds, then a bit of garbage will appear (typically a lower-
case "j"). Use option R to avoid this. (However, then there
may be a bit of extra space above and below a picture,
depending on the print mode chosen.) If you have such a
printer, use:
GPrint df1:MyPicture r
If you are having difficulty with the print-head snagging the
paper if you start printing at the very top of the paper
(just below the perforation), suppressing reverse paper feeds
will be of help. (See Section 6.3, Perforations).
5.7. Full Blackness
New in GPrint 2.03 is a special algorithm that reduces the
blackness in solid areas of the printout. The algorithm
applies only in Special Smoothing mode, and is on by default.
It helps to save the ribbon, and produces a cleaner-looking
output with less chance of smudging by the print-head or by
fingers. If you prefer the full blackness as was found in
GPrint 2.00, simply select option B:
GPrint df1:MyPicture s b
Printing with full blackness on is a bit faster, as GPrint
does not need to employ the de-blackening algorithm. The
full blackness option does not apply and is ignored unless
Special Smoothing is selected.
5.8. Aborting a Print
If in the course of printing a picture you wish to cancel the
operation, click on the "Abort Print" gadget in the GPrint
window that opens in the upper right corner of the screen.
GPrint will then stop sending graphics to the printer, and
terminate gracefully. Of course, the printer buffer may
already contain several lines of graphics, and thus the
printer will continue printing even after GPrint stops
sending. You may either wait for the printer to finish
printing what it has already received in its buffer, or you
may shut off your printer.
GPrint will exit when it has finished sending graphics to the
printer. If the printer is still printing from the buffer
when GPrint finishes sending, either wait it out, or shut off
the printer.
If the "Abort Print" gadget is pressed while the computer is
waiting for the printer (eg. if the printer is not on or if
it is out of paper), the abort will not take effect unless
and until the printer error is corrected (eg. by turning on
the printer or loading paper). Otherwise, after about a
half-minute of waiting, the printer driver will put up a
requester announcing printer trouble. Click on RETRY if
you've fixed the problem, or click on CANCEL to abort and
exit GPrint.
6. Technical Notes
6.1. Printer Requirements
As discussed in Section 4.1, various print densities are used
to provide the nine different print modes that GPrint
supports. If you have an FX or LX printer or something else
relatively recent, all these modes will work. If you have
something older like an MX-80 with Graftrax-Plus, then some
modes will work, while others won't. This section explains
which graphics print modes are used by GPrint, so you can
check your printer manual to see if your printer can do what
GPrint asks of it.
GPrint Modes Epson Code Description
LD, LG ESC '*' 4 80 dots/inch
MD, MG, HD, HG ESC 'L' 120 dots/inch
MS, HS, U ESC 'Z' 240 dots/inch *
* in this mode, the printer does not allow two adjacent
dots to be printed in a single pass. GPrint uses two-
pass printing to overcome this.
For example, an MX-80 with Graftrax Plus does not support the
ESC 'Z' and the ESC '*' 4 graphics modes. Therefore such a
printer can only be used in medium or high density, in draft
or good quality.
If your printer does not support reverse paper feeds (code
ESC 'j' n), be sure to use option R (Suppress Reverse Feeds).
(Note that some early Star-Gemini printers are only mostly
Epson compatible, and graphics printing was one of the
incompatibilities.)
6.2. Paper Movement
GPrint causes the paper to do a funny dance at the beginning
of every printed picture, and sometimes at the end, also.
This is done for two reasons: at the beginning of the
picture, it removes any slack in the paper feed mechanism
caused by manual paper movements (thus preventing unwanted
gaps or overlaps in print passes), and second, GPrint
sometimes requires that the paper be rolled back a tiny
fraction of an inch before and after printing, depending on
the print mode chosen.
When GPrint encounters a picture which has a large blank
section (say at the bottom of the picture, or possibly a band
in the middle), instead of sending dozens of little paper
feed commands to the printer (for that machine-gun effect),
it queues them up internally and issues them as one or more
very large paper feeds, which is less annoying, and faster.
Sometimes, especially when printing a wide picture (that has
such a gap) with special smoothing, it seems like GPrint may
be twiddling its thumbs, but it is actually processing this
blank space, and storing up the paper feed commands. It may
be momentarily disconcerting, but it is still faster than
having GPrint issue a steady flow of small paper feeds.
6.3. Perforations
Two problems can be encountered when printing on or near the
perforations in fan-fold paper. First of all, slight
alignment errors are introduced when the printer is printing
near the perforation. This corrects itself when the
perforation has passed, and is usually small enough to pass
undetected when printing text. When printing graphics,
however, the alignment error usually shows up as a small gap
or overlap between consecutive print passes that should be
just touching. The second problem is more rare, and is that
some printers get into trouble when reverse paper feeding
near the perforation. If your printer jams or otherwise gets
unhappy, start the printing a bit farther down the page if
possible, or else use option R to suppress reverse paper
feeds.
7. Future Enhancements
GPrint has come a long way since version 1, which was used only by
myself and a few friends. Since version 1, the high and ultra
modes were added. As well, the printer was trained not to send
the print-head farther right than the last dot on the line, and
not to waste time passing over blank space. All the options
listed in Section 5 were added, and the program was made to run
several times faster, and is now about half the size of the
original.
There are still a few things that could be added to GPrint, but
Version 2 is here and useful. To give you an idea of what I hope
to add, here are a few points.
7.1. Printer Driver
GPrint is currently a stand-alone program that prints IFF
files. For a fair amount of extra work, the algorithms that
GPrint uses could be cast into a printer driver that could
then be placed with any program and used to get superb output
without having to go through an IFF file to do it. The
output from GPrint is still better than the much improved and
much ballyhooed EpsonX driver from Workbench 1.3. (The Epson
driver from 1.2 doesn't come close to either GPrint or the
EpsonX driver!)
7.2. Workbench Version
GPrint is the perfect pal for us CLI fans. However, people
who freeze at the sight of the little CLI icon also have the
right to great print quality. A Workbench version of GPrint
with a menu and gadget interface offering the same print
quality and options can be arranged. This too would be a
fair amount of work.
7.3. Improved Abort
Why doesn't the "Abort Print" gadget work if the computer is
waiting for the printer to clear its error (out of paper, not
on, etc.)? I spent many late nights trying to get this
feature to work, but I usually ended up freezing the computer
or visiting the Guru. I've now got a pretty good
understanding of how the printer device and the parallel
device work, and I'm not convinced that this is the same as
how they ought to work and are supposed to work according to
the documentation. If ever I discover that the problem is
mine and the devices actually do work as documented, or if
the problem lies with the device drivers and corrected
versions are issued, then this will be done right away.
The other part of the Abort function that could be improved
is the question of graphics that made it to the printer's
buffer before the "Abort Print" gadget was clicked. The
printer keeps going for a while, even though GPrint has
stopped sending stuff, as the user asked. There doesn't seem
to be any Officially Approved Way (OAW) to cause a hardware
reset of the printer, which would arrest the printing
immediately. My best attempt was too successful; it reset
the printer and the computer! If someone shows me such an
OAW, I'd put it in in a flash. If there's a dirty way of
doing it, I'd at least consider it. If there isn't, then it
would be nice if Commodore were to provide one.
7.4. Other Printers
Some or all of the techniques used in GPrint would apply to
other models of printer as well. If there is sufficient
interest, I may be willing to create other versions of GPrint
that support those printers, for example the Epson Q series,
or HP LaserJets and DeskJets.
8. Final Notes
I hope that you find GPrint handy and useful. I've kept it to a
small size so that you can tuck it on any disk where it might be
handy. I've worked hard at testing it to pieces, so there can't
be many bugs left. (never say zero!) It has a bright future
(there are several interesting enhancements which could be done -
discussed in Section 7). At this stage, I have to make one final
appeal: there can't be future versions of GPrint nor any
stablemates released into the public domain or as shareware if
those who find it useful don't register! So please, keep
developers developing, and send $10, along with any comments,
suggestions, bug reports, etc. to:
Peter Cherna
5511 Westbourne Ave.,
Cote St. Luc, Quebec
Canada
H4V 2G9
Thank you and enjoy!