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-
- If you own a Fargo Primera printer and an Amiga, read this. It will let
- you print pictures with a huge, mind-boggling increase in quality. After
- you try this, you will never go back.
-
- (Well, this is only for the dye-sublimation ("photo") driver - this won't
- do squat for the thermal transfer printing).
-
- Before you use this program, READ THIS ENTIRE DOCUMENT!! It is important
- to understand what is going on.
-
-
- PrimeraHack Background
- ----------------------
-
- The current (Version 2.2) Primera printer driver for the Amiga has some
- problems. It supports printing with 4096 primary colors. Currently, you
- can do any of the following:
-
- 1. Print with no dithering. This means that smooth color gradients won't
- look smooth, but everything else will turn out OK. The banding
- problems, however, can be severe. 4096 colors (16 shades of each
- primary) is NOT enough for smooth gradients.
-
- 2. Print with some flavor of dithering. Somehow, the current printer
- driver makes this look just *awful*. Absolutely hideous. I'm not
- sure why. It manages to simultanously destroy any small detail in
- your picture, and introduce dithering my mixing radically different
- colors together with huge dither block. It looks very bad.
-
- Option #1 is what the current Fargo documentation tells you to do. It was
- the best option, but you don't get smooth color gradients.
-
- Until PrimeraHack. PrimeraHack was created to provide a (hopefully)
- temporary workaround to this problem until such time as a decent driver
- becomes available for the dye-sublimation mode.
-
- What is PrimeraHack? PrimeraHack does pre-print processing on your image.
- It reduces your image to the supported Fargo color space of 4096 colors,
- and also does its own dithering in a MUCH better manner than the Fargo
- driver. The results look tremendouly better. The colors are truer. The
- shading is incredibly smooth, instead of the horribly banded shading you
- get now.
-
- PrimeraHack, unfortunately for many of you, requires ImageFX. If you
- don't have ImageFX, it is well worth the price. In any case, the
- improvement in print results obtainable by PrimeraHack should make it
- worthwhile to search out someone with ImageFX and have them run the
- conversion before you and give you the files back to print. (Yes, I think
- it makes so much difference as to be worth the trouble).
-
- PrimeraHack is a "hack" because this sort of thing should be done in the
- printer driver, not in a pre-processor like this. But for now, this will
- have to do. There are manual steps involved, and I will try to describe
- them below. The whole process is a bit of a pain, but you should find it
- to be worthwile.
-
-
- Installing PrimeraHack
- ----------------------
-
- 1. Copy the PrimeraHack file to your ImageFX:Hooks directory.
-
-
- Using PrimeraHack
- -----------------
-
- 1. First, PrimeraHack is only worthwhile for images from a 24 bit color
- space. For example, JPEGs are 24 bit. GIFs also have a 24 bit
- color space, even though they have only 256 colors. The *pallete*
- size here is important. PrimeraHack won't do anything for non-AGA
- amiga graphics modes such as HAM, so don't bother. It is important
- to understand the difference between the color space (24 bit for
- BOTH GIF and JPEG, 4096 for older amiga graphics modes), and the
- number of colors in the picture (max of 256 for GIF, etc). If you
- image is already dithered to a smaller *color space*,, don't use
- PrimeraHack.
-
- 2. Load your image into ImageFX. The higher res, the better.
- I usually try to use at least 1280x1024.
-
- 3. Insure your preferences settings are set right. They should be:
- Printer: Primera
- Port: Parallel
- Dithering: Ordered <--- *** IMPORTANT!!! ***
- Scaling: Fraction
- Image: Positive
- Aspect: Horizontal
- Shade: Color
- Threshold: 7
- Color Correction: all off
- Smoothing: On
- Center: On
- Limtis: Ignore
-
- 3. Do any pre-print processing you wish. I usually:
- A. Add titles
- B. Rotate the image 90 degrees. (The CRT is wider than it
- is tall; the printer output is taller than it is wide.)
- C. Do gamma correction to increase the brightness a little. (The
- printer seems to reduce the image intenstiy a bit).
- D. I often also increase the blue - the printer seems to be a
- bit weak with blues. Select the "B" gadget only from the
- title bar, and use the "Ga" option in the color menu.
-
- 4. Scale your image to the full size of your print. Do this *before*
- running PrimeraHack. It is important that you do this *before*
- PrimeraHack. To generate an 8x10 image, you should scale to
- 1624x1990. This will probably require you to use ImageFX virtual
- memory unless you have an awful lot of RAM.
-
- 5. Enter the Hooks menu of ImageFX, select PrimeraHack, and run it. It
- may take a few minutes. It will reduce the colors in your image to
- the set acceptable to the printer, and perform its own dithering to
- simulate others, in a manner MUCH MUCH better than if you let the
- Fargo driver dither for you. If you cancel PrimeraHack, you will
- have to re-load your image and start over.
-
- 6. Enter the "Size" menu of ImageFX, select "Set Aspect", and set the
- horizontal and vertical DPI to 203 and 199, respectively.
-
- 6. Enter the printer screen in ImageFX. Make sure the Primera driver
- is selected.
-
- 7. ** IMPORTANT ** Make sure you are using the "Prefs" ImageFX
- printer module, ** NOT ** the PrefsII module. You want as little
- processing as possible. Prefs is the module to use here. Your
- image size should show up correctly if you have scaled your image up
- front.
-
- 8. Make sure your print density is set to 4 (four) for the version 2.2
- driver. Fargo seems to occasionally change these numbers, so make
- sure this is right for your driver version.
-
- 9. Select print.
-
- 10. Go away for a while. It takes a long time to print a dye-sub print.
- You do NOT want to crash your computer during printing, as this will
- cost you about $3.00.
-
- 11. Come back and retrieve your print. Admire it as you wish :-)
- The results are rather amazing.
-
- After you have tried printing with this pre-processor, you will simply
- never do it any other way. If you follow these instructions closely, you
- will probably get better results than even their MS-Windows driver (which
- doesn't seem to suffer from the dithering problem of the amiga driver).
-
- If you have questions or problems, let me know. Otherwise, happy
- printing.
-
- Steve Koren
- koren@fc.hp.com
-