[sane-devel] colors messed up (scanjet 4370)

[Ian van der Neut]

On Sat, Mar 14, 2009 at 3:18 PM, Ian van der Neut <ivdneut at gmail.com> wrote:
> On Fri, Mar 13, 2009 at 11:41 PM, Ian van der Neut <ivdneut at gmail.com> wrote:
>> On Fri, Mar 13, 2009 at 11:14 PM, JKD <jkdsoft at gmail.com> wrote:
>>> On Friday 13 March 2009 22:39:33 Ian van der Neut wrote:
>>>> Hello all,
>>>>
>>>> I searched the archives and googled, but I can't find anything that
>>>> resembles my problem. The problem is illustrated by the images:
>>>>
>>>> http://apache.dataloss.nl/~ian/img.png which was scanned with:
>>>> $ scanimage --mode Gray > img.pnm (the pnm images are also under the same
>>>> url). This one looks as expected, however, there's color on the paper, that
>>>> I'd like to see, so I scanned with:
>>>>
>>>> scanimage --mode Color > imgcolor.pnm This results in:
>>>> http://apache.dataloss.nl/~ian/imgcolor.png As you can see, the bottom
>>>> part is displayed five times, then a part just above the middle, then
>>>> a part just above that. Also, the CMYK colors are positioned offset
>>>> from eachother, except the bottom part for the first time.
>>>>
>>>> Does anyone give me some pointers as to how to fix this, or could this
>>>> be a problem with the scanner itself? I'm not very experienced with
>>>> scanning.
>>>
>>> I've got a HP4370 and I can not reproduce your problem but try latest code
>>> located at sourceforge's SVN server:
>>>
>>> https://sourceforge.net/scm/?type=svn&group_id=150599
>>>
>>> Latest version implements native calibration in reflective scans. More info
>>> can be found at:
>>>
>>> https://sourceforge.net/forum/forum.php?thread_id=3023691&forum_id=503228
>>
>> I compiled the code, but it's still messed up, but differently:
>> http://apache.dataloss.nl/~ian/imgcolor2.png (the pnm is also there)
>>
>> I'll check with a windows box tomorrow or so to make sure it's not the
>> scanner itself that is broken. Thank you so far.
>
> Just confirmed with a windows laptop that the scanner works fine, so
> it's either something in the Linux box (Ubuntu 8.04, hardy heron)
> hardware (usb) or software (sane)... other usb devices (phone, camera,
> etc) work ok.
>
> Thank you in advance for any pointers, suggestions etc...

Well, hooked it up to the Linux box again and now it works like a
charm. Even survives a reboot and a power cycle... wth!?? oh well....
sorry to bother y'all :)

Ian.