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Subject: Re: [Homebrew_PCBs] Inkjet Transparencies

From: Stefan Trethan <stefan_trethan@...>
Date: 2003-06-28

thanks...

looks good, but not perfect.
if you have time, may you place the film against bright light and check
with a maginifier or so
if the dark areas are smooth black or if you can see a variation in
density?

i can remember from my 300dpi hp that you could see the "dots" without any
aid with your eye.

i guess the edges are a bit more straight in real life that on the scan?
(i mean if your scanner resoultion is lower than the printers)

but if we get the same quality (and smooth covering) with the resist ink it
would be perfect.


regards
stefan



On Sat, 28 Jun 2003 00:57:59 -0000, c_kurz <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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