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Subject: Re: [Homebrew_PCBs] Inkjet Transparencies

From: adam Seychell <adam_seychell@...>
Date: 2003-06-29

A while ago I tested many different inkjet transparencies on
several printers (Epson 660, HP 640 Deskjet) and found
surprising large differences in quality of the prints. You
can get very opaque and solid filled prints with and Epson
660 (or any model with same black ink composition), and
Epson transparencies. I have not tried the CLASSEN TRON
XEROMAT I Universal. The black ink in the Epson Photo 1200
may be compatible with these transparencies. One day I'll
get around to making a web page explains inkjet and
transparencies for producing photomaks.

One thing I have learned is that the ink and transparency
MUST be compatible for good results. Looks like you found
one such combination, Thanks Carsten for showing us.

Adam.

c_kurz wrote:
> Here's an example of inkjet transparency layout film, scanned.
>
> The quality is quite good. On the right is the digital original.
>
> http://www.gpskabel.de/ext/tinte.gif
>
> I did not do any contrast enhancing, retouching or other fancy
> things. The resolution of the scanner is somewhat lower than that of
> the actual film/printout.
>
> The printer was EPSON Stylus Photo 1200, the transparency is 'CLASSEN
> TRON XEROMAT I Universal', using 'Photo Quality Paper' or 'Photo
> Quality Film' setting at highest resolution. This will increase black.
>
> For PCB films, always use max photo quality, NOT the Inkjet
> transparency defaults of the printer driver.
>
> Different inkjet technologies need different transparencies. The one
> I quote is optimal for Epson inkjet printers.
>
> - Carsten
>
>
>
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