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Subject: Re: Direct PCB printing with Epson Stylus color 440

From: "Andrew" <andrewm1973@...>
Date: 2006-08-25

>>> Someone wrote:
>>> <Something about an old epson printer>

>> ST Wrote:
>> Hey, i found the older epsons will not
>> work because the resolution seems too
>> low.

>> The individual lines of ink it prints
>> did not close up in my trial. I think
>> you need 1440 dpi of vertical resolution.
>> Not 100% sure about this though, but
>> that's what it looked like.

> Russel wrote:
> Older epsons starting from the 720dpi
> stylus-400 colour are perfectly ok for
> tracks of 10mil.
>
> Crap printouts only happen when crap ink
> and/or transparency is used.
>
> For the last few years, i've been using
> a stylus-460 colour, and there's no gaps
> between lines or pinholing.

I think that ST is talking about direct-
inkjet printing.

This might be different to printing onto
JetStar film or good trannys that have a
gel coat.

The Copper PCB probbably does not soak up
the ink and fill in the gaps as well.

(Not that I think that direct injet is a
good idea - photo-process all the way and
save the goats)