[sane-devel] Re: [Canonscanner-devel] Canoscan N670U (fwd)

[Theodore Kilgore]

Gunther,

I have recently joined the canonscanner-devel list, and I publicized there
your test backend program for the Canon N670U. Here is a report from
someone about it, on another Canon scanner.


Theodore Kilgore



---------- Forwarded message ----------
Date: Mon, 18 Feb 2002 00:26:51 -0800 (PST)
From: R N dev <random_lx at yahoo.com>
To: Theodore Kilgore <kilgota at banach.math.auburn.edu>
Cc: canonscanner-devel at sourceforge.net
Subject: Re: [Canonscanner-devel] Canoscan N670U

Hi,
Great work! It seems to work also with the canon N656U

that has the same id as the N650U (i.e. 0x2206), but
the white color is represented as light blue.

In the note you told about replug the scanner, but
i'd not. It's been necessary to press the scanner
start button.

Thanks for all

Angelo

--- Theodore Kilgore <kilgota at banach.math.auburn.edu>
wrote:
>
>
> Suspecting that this message may be of general
> interest to people
> interested in Canon scanners, I am forwarding it to
> the mailing list. I
> might mention that Gunther Mayer's page also
> contained a version 0.02
> as well as 0.01, the last time I looked at it,
> several days ago.
>
> Further background:
>
> The N670U uses the National Semiconductor LM9833
> chipset, with CIS
> sensors. Several other scanners use either an
> LM9832, 31, or 30 chip and
> may use CIS or CCD. Several of these scanners are
> made by Plustek, which
> is more willing to cooperate with Linux people than
> Canon seems to be.
> Hence, there is some interest in the National
> Semiconductor Merlin
> chipsets among Plustek developers, and some work has
> been done there
> about LM983x support in general.
>
> The referenced program is very alpha, and the
> compilation instructions
> need to be taken literally. It uses libusb, not
> kernel support, and
> depends upon usbdevfs to function, too. Therefore
> before being successful
> with it even after compilation one must do rmmod
> scanner (if scanner.o
> is installed) and one must do mount -t usbdevfs none
> /proc/bus/usb if this
> is not already done. Otherwise no scan.
>
> 150DPI only. Presumably one of the things on the
> list is to get beyond
> this.
>
>
> Theodore Kilgore
>
>
> ---------- Forwarded message ----------
> Date: Fri, 01 Feb 2002 18:25:02 +0100
> From: Gunther Mayer <Gunther.Mayer at t-online.de>
> To: kilgota at banach.math.auburn.edu
> Cc: sane-devel at mostang.com
> Subject: Re: [sane-devel] Canon
> N670U:merlin670-V0.02 developers release
>
> kilgota at khayyam.math.auburn.edu wrote:
> >
> > This works. I got a scan out of it.
> >
> > Further remarks:
> >
> > 1. apparently I had to rmmod scanner first, or it
> was unhappy.
>
> That was expected. I added a verbose message about
> this.
>
> > 2. I had to run the program as root
> > 3. It didn't want somehow to create the temporary
> file n670u.raw, but
> > after I did
>
> Fixed in
>
http://home.t-online.de/home/gunther.mayer/merlin670-V0.01.c
>
> -
> Gunther
> _______________________________________________
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>
>
> _______________________________________________
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> Canonscanner-devel at lists.sourceforge.net
>
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