gmane.comp.graphics.scanning.sane.devel

Re: Canon DR-2580C only low resolutions

m. allan noah — 2013-05-25T00:55:41

ah- and between those two versions, there were very few changes. In
particular, there was a change to the 2580 code to deal with its
padding of the back side of the image. Are you able to recompile
sane-backends from source? If so, perhaps we can try a test.

allan

On Fri, May 24, 2013 at 12:15 PM, Carl Davis <carl< at >carldavis.com> wrote:

Re: Canon DR-2580C only low resolutions

Carl Davis — 2013-05-24T16:15:35

Hopefully this is what you are seeking.

1.0.22 works
1.0.23 fails


On Fri, May 24, 2013 at 10:50 AM, m. allan noah <kitno455< at >gmail.com> wrote:

Re: Canon DR-2580C only low resolutions

m. allan noah — 2013-05-24T15:50:11

Yes- i think there is some problem with the calibration code on these
machines, at higher resolutions the calibration is done differently
than in lower resolutions. Perhaps the old version of the code did
different calibration. How about telling which version of
sane-backends is in use on your two systems?

allan

On Fri, May 24, 2013 at 11:05 AM, Carl Davis <carl< at >carldavis.com> wrote:

Canon DR-2580C only low resolutions

Carl Davis — 2013-05-24T15:05:53

Hello,

I have a Canon DR-2580C. If I scan at anything above a –resolution of 240
my attempted scan fails with:

"scanimage: open of device canon_dr:libusb:001:012 failed: Invalid argument"

This problem does not exist on 12.04(1.0.22-7ubuntu1) but does on 12.10 and
13.04 (1.0.23-0ubuntu1). I have run:

"SANE_DEBUG_CANON_DR=30 scanimage --resolution=300 > 2580-1.pnm
2>2580-13.04.log"

and attached the log file to this email. I have also run the same command
on 12.04 (which succeeds) but it is 8MB bzipped so I won't attach it to
list mail unless requested.


Thanks,

Carl

Re: canon pixma MX890 ADF empty test OK

Rolf Bensch — 2013-05-24T15:04:31

Hi Tim,

please first test via usb only. The LAN interface (bjnb) could have a bug.

If you still have this scanner we should fix the bugs and you don't need
to send the scanner back.

Cheers,
Rolf

Am 22.05.2013 23:53, schrieb Tim:

Re: canon pixma MX890 ADF empty test OK

Rolf Bensch — 2013-05-24T14:55:21

Hi Tim,

seeing an "error" while adf is impty is normal behaviour.

What's about running an adf batch scan job empty? Can you start a new
(single) scan job afterwards?

Please use only usb connection while testing. On a 2nd step we can
switch to LAN.

Please be patient if you'll see some errors and it may seem that we are
on the wrong way. We'll find a patch for this scanner.

Cheers,
Rolf

p.s. please answer with my email as cc. I'm not checking the ml digest
frequently.



Am 22.05.2013 05:56, schrieb Tim:

Re: Looking to get my Mustek A3 1200S flatbed Scanner with GL128 chip working with XSANE

George Chriss — 2013-05-24T01:09:25

Please see:
http://vasks.debian.org/tracker/?func=detail&atid=410369&aid=314022&group_id=30186

Would root access to a machine connected to the scanner suffice?  If not so
much, the logic board (~10 sq. cm) can be readily detached from the
body/scan bar and shipped, if that helps things.

No reply from Mustek on Linux support.

Sincerely,
George

Re: canon pixma MX890 ADF empty test OK

Louis Lagendijk — 2013-05-23T14:31:11

Ar you scanning over the network. It would be worth testing the USB
interface first. And if you can get Rolf the logfiles of a Windows scan
and the Linux scan I am sure that he will be abler to get this sorted
out. This is definitely worth spending some effort for.

The logfile you show here may be pointing to a bug in the network code.
In other cases I have seen a faiure to open a tcp connection, this was a
bug in the network code. Did you test with the latest code from git?
Could you please try the same procedure over USB (disconnect the network
connection for the time being)

Louis

Re: canon pixma MX890 ADF empty test OK

Tim — 2013-05-22T21:53:16

Unfortunately my report was premature.  The backend did successfully 
manage a 1 page ADF scan followed by an ADF empty test, but more normal 
use profile failed as:

o Placed 9 sheets in ADF

o launched xsane w ADF/multipage=9

o ask for and received preview, adjusted color with white eyedropper

o ask for scan, failed

After this, the MX892 was locked out regardless of several 
retries/variations including power cycling MX892, removing ~/.sane, 
removing cnijfilter and rebuild/reinstall 16 May git.  All variations 
error as follows:


Unfortunately this means the MX892 is unreliable and will be returned to 
Amazon.  I'll do my backend homework better next time.

Cheers,


Tim wrote:

Re: Canon ImageFormula P-208

Franck LANTZ — 2013-05-22T12:55:34

Just for information.

I just found this on the (incredibily huge) canon website.

http://www.canon-europe.com/Operating_System_Drivers/imageformula.aspx

they made linux driver for another imageformula (p-150). This model is a
bit more expensive but it's encouraging for the future.


2013/5/22 m. allan noah <kitno455< at >gmail.com>

Re: Canon ImageFormula P-208

m. allan noah — 2013-05-22T12:44:54

If it is not in the sane supported list, you should assume it is not
supported. This is particularly true of new scanners, as sane
developers generally require access to a scanner for some time before
it is supported.

allan

On Wed, May 22, 2013 at 8:31 AM, Franck LANTZ <trollsroyce< at >gmail.com> wrote:

Canon ImageFormula P-208

Franck LANTZ — 2013-05-22T12:31:06

HI, I'm very interested about this scanner.
http://www.usa.canon.com/cusa/support/office/imageformula_scanners/imageformula_p_208/imageformula_p_208_scan_tini_personal_document_scanner

Can you tell me if this device is supported by sane.

It's a new product and i don't found it in the supported list.

Thank you.

canon pixma MX890 ADF empty test OK

Tim — 2013-05-22T03:56:28

Canon MX892 (US model)

tested:
Loaded and unloaded ADF tray

backend:
git clone as of 16 May, no changes

rerelated software:
xsane 0.998
cnijfilter-mx890series-3.70-1.x86_64 from canon-asia
cnijfilter-common-3.70-1.x86_64 from canon-asia
cups-bjnp-1.2.1-x86_64-1_SBo from slackbuilds.org
2.6.37.6c (tim< at >hp_lap) (gcc version 4.5.2 (GCC) ) #8 SMP
Slackware 13.37, x86_64

environment:
SANE_DEBUG_PIXMA=11

results:
loaded ADF tray works as expected, empty ADF tray gives appropriate 
error (see attached log)

Cheers,

Re: canon MX892 scan test OK

Rolf Bensch — 2013-05-21T16:45:32

Hi Tim,

Many thanks for your report.

As I can see on the supported scanners site
(http://www.sane-project.org/lists/sane-backends-cvs.html#S-PIXMA), your
scanner is completely supported by the SANE Development Version.

So, with the SANE git version you don't need to use 'PIXMA_EXPERIMENT=1'
anymore.

But it seems that there still is a problem with 'ADF empty'.

If you can reproduce this problem, please provide some debug infos
created with 'export SANE_DEBUG_PIXMA=11' and 'xsane &> pixma.log' from
the command line.

If 'ADF empty' is OK, I can remove this comment from the supported
scanners site.

Cheers,
Rolf


Am 16.05.2013 22:25, schrieb Tim:

Re: iX500 multiple pages

David Friberg — 2013-05-21T14:16:25

I didn't try this in Windows -- maybe it isn't possible.

Dave Friberg
phone: (402) 957-2480


On Tue, May 21, 2013 at 8:26 AM, m. allan noah <kitno455< at >gmail.com> wrote:

Re: iX500 multiple pages

m. allan noah — 2013-05-21T13:26:30

I just now got a chance to try this with my iX500- and yes, if you
have multiple pages in the scanner and ask for only one, the machine
will keep scanning. I will look for a fix.

allan

On Sat, May 18, 2013 at 8:29 AM, m. allan noah <kitno455< at >gmail.com> wrote:

Re: scanimage and option titles

Jeffrey Ratcliffe — 2013-05-20T13:22:44

If a user reports a bug saying a scanner is not working as expected
quoting gscan2pdf behaviour, then first I have to see whether the
problem is due to gscan2pdf itself, the Perl bindings for SANE, or the
SANE backend. However, if the user can reproduce the problem with
scanimage, then it is fairly clear that the backend has the problem.


Thanks. As soon as I have something, I'll post it.

Regards

Jeff

Re: scanimage and option titles

m. allan noah — 2013-05-20T12:19:31

On Sat, May 18, 2013 at 5:18 PM, Jeffrey Ratcliffe
<jeffrey.ratcliffe< at >gmail.com> wrote:

I am curious about both of these assertions- can you elaborate the
advantages of scanimage here?


Yes- we would accept such a patch, as it would be useful for
command-line users as well.

allan

Re: resolution problem with HP 4400c

Amit Ramon — 2013-05-20T06:20:17

Thank, Stef.

Stef <stef.dev< at >free.fr> [2013-05-16 21:19 +0200]:



I compiled the latest sources from git but it didn't solve the
problem. I still cannot scan at resolution higher than 75 DPI. It also
seems that with the latest version the scanner makes much more
noise...

Thanks for the help. I may stick with the debian package in the
meantime.

--- Amit

Re: proper use of GT68XX_FLAG_NO_POWER_STATUS?

Nico Hoffmann — 2013-05-19T15:29:33


Thank you for your hint. I finally got it working.

In gt68xx_devices.c, struct "static GT68xx_Model
plustek_opticslim1200_model", I exchanged the last entry "0" with
"GT68XX_FLAG_NO_POWER_STATUS". This is line 1752 in v-1.0.23.

In words of diff:

   diff gt68xx_devices.c_bak gt68xx_devices.c
   1752c1752
   <   0
   ---
   >   GT68XX_FLAG_NO_POWER_STATUS

After recompiling, the scanner is working now as expected.

That's all.


Of course, this small change should inserted into the sources. Can do
this someone for me? Otherwise, I would have to create a bug tracker
account only for this small issue, if I understood it correctly.

regards,

N.

scanimage and option titles

Jeffrey Ratcliffe — 2013-05-18T21:18:48

GUIs often either use the SANE API directly, or control a scanner by
wrapping scanimage.

Generally, there is no advantage in using scanimage, as it is slower,
but in certain situations, for instance remote access, it is not
possible to use the SANE API directly. Also, debugging a backend
problem is much easier with scanimage.

The major visual difference for the user in these two interface
methods, is that, apart from groups, scanimage does not expose the
option titles. As the option names are not translated, a GUI therefore
cannot use the sane-backend translations and has to use its own.

This could all be avoided if scanimage were to expose the option
titles. The translations from sane-backends could be used, and the two
interface methods would look the same.

I therefore propose an additional option for scanimage that exposes
the option title in the --help output.

Is a patch for scanimage along these lines likely to be accepted?

Regards,

Jeff