plustek: Thread: Configuration file for Canon CanoScan N670U

Can anyone provide a plustek.conf configuration file specifically for
the Canon CanoScan N670U (vendor=0x4a9, product=0x220d)? I have the
scanner working, basically, with an Intel 2.4.19 kernel, sane 1.0.9-pre
backend and plustek 0.44.9 module (I think). However, I can't get gray
scans at all and my color scans are very blue.

I would also like to know how to confirm that I have built and installed
the latest Plustek modules. There are several C source files with
plustek and USB in their name but that do not get compiled.

I have set the recommended values for the red, green, blue and gray
Gamma, which reduced the blue-ness somewhat.

-- 
Bill Mania

Hi Bill,

the integration of the Canon 670U has only reached the point, that
allows us to move the sensort and to get some raw-picture data
(color) from the device. The gray mode is not operable so far
and the binary mode neither.
The next step I plan to do is making the calibration work so that
the pictures are more usable....
If the scanner works for you so far, there's no need to tweak
the configuration, as there's almost nothing to tweak for the 
CANON...

So simply stay tuned, I'll be back if I have something to test so far.
Thanks for your offer to help
  Gerhard

On Wednesday, 16. October 2002 14:57, Bill Mania wrote:
> Can anyone provide a plustek.conf configuration file specifically for
> the Canon CanoScan N670U (vendor=0x4a9, product=0x220d)? I have the
> scanner working, basically, with an Intel 2.4.19 kernel, sane 1.0.9-pre
> backend and plustek 0.44.9 module (I think). However, I can't get gray
> scans at all and my color scans are very blue.
>
> I would also like to know how to confirm that I have built and installed
> the latest Plustek modules. There are several C source files with
> plustek and USB in their name but that do not get compiled.
>
> I have set the recommended values for the red, green, blue and gray
> Gamma, which reduced the blue-ness somewhat.

Gerhard,

After reading this mail interchange, I get two impressions:

1. There are in fact no changes in the code since 0.44.2 which directly
affect the Canon N670U.

2. Changes are contemplated in the near future.

Am I correct in these impressions? If so, I look forward with eagerness,
but I can say that the scanner actually works pretty well right now, with
only a couple of minor complaints.

Also:

3. I did not exactly understand what you meant a couple of days ago when
you said to me "You are right" concerning the similarities of the N670U
and the N1240U.
Has it actually been decided whether the N670U has an LM9833 in it (as
it was reported to me that someone had opened the box and found one in it,
months ago), or does it have the LM9832, as recently reported?

Theodore Kilgore

On Wed, 16 Oct 2002, Jaeger, Gerhard wrote:

> Hi Bill,
>
> the integration of the Canon 670U has only reached the point, that
> allows us to move the sensort and to get some raw-picture data
> (color) from the device. The gray mode is not operable so far
> and the binary mode neither.
> The next step I plan to do is making the calibration work so that
> the pictures are more usable....
> If the scanner works for you so far, there's no need to tweak
> the configuration, as there's almost nothing to tweak for the
> CANON...
>
> So simply stay tuned, I'll be back if I have something to test so far.
> Thanks for your offer to help
>   Gerhard
>
> On Wednesday, 16. October 2002 14:57, Bill Mania wrote:
> > Can anyone provide a plustek.conf configuration file specifically for
> > the Canon CanoScan N670U (vendor=0x4a9, product=0x220d)? I have the
> > scanner working, basically, with an Intel 2.4.19 kernel, sane 1.0.9-pre
> > backend and plustek 0.44.9 module (I think). However, I can't get gray
> > scans at all and my color scans are very blue.
> >
> > I would also like to know how to confirm that I have built and installed
> > the latest Plustek modules. There are several C source files with
> > plustek and USB in their name but that do not get compiled.
> >
> > I have set the recommended values for the red, green, blue and gray
> > Gamma, which reduced the blue-ness somewhat.
>
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Hi Theodore,

you're correct with these impressions. As the release date of SANE-1.0.9
is right ahead, I concentrated my work on fixing stuff that touches already
working devices. As the Canon devices are using other sensor chips as
other manufacturer, there's lot of work to be done to make the calibration
stuff working for them. But after releasing SANE-1.0.9, I will start with the
improvement... (Probably backend version 0.45)

The other point LM9833 or LM9832. I'm not sure what's really inside.
On one hand, there are two models N670U and N676U, this might implies
two different chips inside (LM9832 inside 670 and LM9833 inside 676).
On the other hand there's a mail earlier this year, that somebody managed
to open the scanner and found a LM9833 - so what?
Anyway in general this should make no difference, as the code expands
the 14bit (LM9832) to 16bit, and at least this is the only difference between
the two ASICs.

By saying "You are right", I meant that I have already noticed, that the
1240 is rather an upgraded 670 and should work with a couple
of code modifications. But this has to be tested...

regards
  Gerhard

On Donnerstag, 17. Oktober 2002 01:45, Theodore Kilgore wrote:
> Gerhard,
>
> After reading this mail interchange, I get two impressions:
>
> 1. There are in fact no changes in the code since 0.44.2 which directly
> affect the Canon N670U.
>
> 2. Changes are contemplated in the near future.
>
> Am I correct in these impressions? If so, I look forward with eagerness,
> but I can say that the scanner actually works pretty well right now, with
> only a couple of minor complaints.
>
> Also:
>
> 3. I did not exactly understand what you meant a couple of days ago when
> you said to me "You are right" concerning the similarities of the N670U
> and the N1240U.
> Has it actually been decided whether the N670U has an LM9833 in it (as
> it was reported to me that someone had opened the box and found one in it,
> months ago), or does it have the LM9832, as recently reported?
>
> Theodore Kilgore

Thanks for the clarifications. I hope you do not think I was being
impatient. Just confused. And, yes, I do know that the LM9833 performs a
super-set of the functions of the LM9832. I could get that much (though
not much more!) out of the datasheets for both chips. It was a good lesson
to me that I stick to theoretical mathematics (my trade) or more basic
hardware hacking (hobby, also used at work).

Theodore Kilgore

On Thu, 17 Oct 2002, Gerhard Jaeger wrote:

> Hi Theodore,
>
> you're correct with these impressions. As the release date of SANE-1.0.9
> is right ahead, I concentrated my work on fixing stuff that touches already
> working devices. As the Canon devices are using other sensor chips as
> other manufacturer, there's lot of work to be done to make the calibration
> stuff working for them. But after releasing SANE-1.0.9, I will start with the
> improvement... (Probably backend version 0.45)
>
> The other point LM9833 or LM9832. I'm not sure what's really inside.
> On one hand, there are two models N670U and N676U, this might implies
> two different chips inside (LM9832 inside 670 and LM9833 inside 676).
> On the other hand there's a mail earlier this year, that somebody managed
> to open the scanner and found a LM9833 - so what?
> Anyway in general this should make no difference, as the code expands
> the 14bit (LM9832) to 16bit, and at least this is the only difference between
> the two ASICs.
>
> By saying "You are right", I meant that I have already noticed, that the
> 1240 is rather an upgraded 670 and should work with a couple
> of code modifications. But this has to be tested...
>
> regards
>   Gerhard
>
> On Donnerstag, 17. Oktober 2002 01:45, Theodore Kilgore wrote:
> > Gerhard,
> >
> > After reading this mail interchange, I get two impressions:
> >
> > 1. There are in fact no changes in the code since 0.44.2 which directly
> > affect the Canon N670U.
> >
> > 2. Changes are contemplated in the near future.
> >
> > Am I correct in these impressions? If so, I look forward with eagerness,
> > but I can say that the scanner actually works pretty well right now, with
> > only a couple of minor complaints.
> >
> > Also:
> >
> > 3. I did not exactly understand what you meant a couple of days ago when
> > you said to me "You are right" concerning the similarities of the N670U
> > and the N1240U.
> > Has it actually been decided whether the N670U has an LM9833 in it (as
> > it was reported to me that someone had opened the box and found one in it,
> > months ago), or does it have the LM9832, as recently reported?
> >
> > Theodore Kilgore
>
>
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