[sane-devel] Visioneer Onetouch 4400 USB (Visioneer/Primax Primascan Colorado 2600u, Memorex 6142u)

[Terry Boldt]

Not too sure if how similar the Visioneer 4400 is to the 8000 series scanners, 
but a backend (supposedly) exists for 8000 series, at least some of them. I 
have the source for the 8000 series backend and am expecting an 8920 in the 
mail within the next month. At that time I was expecting that I would have to 
work on the source that I have to adapt it to the 8920. If the 4400 is 
similar, then we can combine our efforts. I will be connecting via USB 2.0.

If you think the source I have will be helpul, I can send it to you.

Terry



On Wednesday 03 December 2003 09:57, Keith Watson wrote:
> Well, no-one else has stepped forward to say they are working on this
> device, so it looks like if I want a backend for it then... I'm it! :o)
>
> I suspect it may share the same chipset as some other devices which people
> are working on (see below) so I might not have as much to do as I'd thought
> (hope springs eternal...).
>
> I've been in touch with the Visioneer technical department and not had any
> luck so far but have started an e-mail conversation with one of their
> technical bods (who seems quite interested) so one for the back burner. ;o)
>
> On Sun, 30 Nov 2003 13:15:15 +0100
>
> "Jaeger, Gerhard" <gerhard at gjaeger.de> wrote:
> > I'm pretty shure, that the Visioneer 4400 does not contain a LM983x ASIC.
> > I checked some logs in spring this year, and there it turned out to be a
> > GeneSysLogic based device, at least containing a GL 640 bridge. The
> > ASIC is unknown to me, probably one of those E... ones - maybe Steven
> > Ellis knows more...
>
> Thanks for the feedback and info Gerhard.  Now all I've got to find out is
> what ASIC means. :o) (an Epson site I've just Googled says it means
> "Application-Specific Integrated Circuit")
>
> The general opinion seems to be that the Visioneer Onetouch 4400 USB
> (V1T4400U for short) is also retailed as;
>  - Visioneer Primascan Colorado 2600u
>  - Primax Primascan Colorado 2600u
>  - Memorex 6142u
>
> Anyone working on any of these?
>
> My output for  /proc/bus/usb/devices and sane-find-scanner -v -v is
> identical to that mentioned on the unsupported scanner web page.  Which
> also suggests that the USB Descriptor looks similar to the;
>  - Genius Colorpage Vivid III (USB)
> and
>  - Pacific Image Electronics (PIE) Primefilm 1800u
>
> I know that Alexander Feldman is working on the Primefilm 1800u (hi Alex,
> if you're reading this, I may be in touch real soon now :o) ) and someone
> said at the end of June this year that they were considering writing a
> backend for the Genius Colorpage. So they might be lines worth pursuing.
>
> There is some speculation about whether the device uses the E1, E3 or E5
> chipset.  Can anyone point me to a place where I can read up on what the
> significance of E1, E3 and E5 is?
>
> Are there any good places to read up on scanner hardware technology in
> general so I've got at least some idea what's going on?
>
> Is the next step to get hold of something called a USB snooper? (I've got
> some links but recommendations are welcome). I'd appreciate a pointer to
> some info on how this is used.
>
> Right, I've got a whole load of stuff off the SANE web site which I need to
> read and the SANE docs directory to dig around in.
>
> BRB! :o)
>
> Keith