[sane-devel] Epson gt-8000 transparency experiment

Jonathan Buzzard jonathan@buzzard.me.uk
Thu, 27 Nov 2003 23:53:03 +0000

bartbuitinga@xs4all.nl said:
> It occurred to me that if it is possible to project a negative on the
> scanners glass pane using a slide accessory, it might also work to use
> a  photo magnifier (I mean the thing used to print in a (B&W)
> darkroom, an  Opemus 11 to be precise) with some kind of half
> transparent projection  surface, just if I would succeed in scanning
> with the lights off. 

A very interesting idea, because rather than scanning the
negative directly, as in a normal transparency adaptor you would
be scanning something much larger. As you will not be pushing the
scanner to it's limit you have the potential to get a much better
quality scan as well, assuming that you a decent 

> I guess that normally the scanner would notice a device connected to
> the  15 pin entrance on the rear, and maybe it would just be a matter
> of  shortcircuiting some of its contacts, but maybe there is a trick
> to do  it with one of the ini's that twain32 (win95) uses. (In the
> latter case  I hope there's a similar linux option or continue my
> quest elsewhere) 

Does the manual come with any sort of pin out? My guess is that it is
more than just a short because otherwise a 3.5mm mono jack would
be sufficient to carry the power for the negative backlight and you
can get 3.5mm sockets with built in switches so you can detect when
stuff is plugged in. This would be much cheaper than any 15pin
connector going.

Is there anyone willing to take a closer look at the photo adaptor?


Jonathan A. Buzzard                 Email: jonathan (at) buzzard.me.uk
Northumberland, United Kingdom.       Tel: +44 1661-832195