[sane-devel] HP Scanjet 4850 Development

Daniël Sonck dsonck92 at gmail.com
Sun Feb 5 21:27:53 UTC 2012

On 05-02-12 09:01, Stef wrote:
> Le vendredi 3 février 2012 13:39:57 Daniël Sonck a écrit :
>> Hello all,
>> I recently got an HP Scanjet scanner from my parents as I sometimes need
>> to copy or scan images as a student. I have seen
>> that the genesys backend has experimental support for this scanner as it
>> is based on the same chip. I have tried the latest
>> snapshot and I am pleased to see that it actually sees the scanner and
>> does something with it. Although the statement that
>> it works with 2400 - 300 dpi is not entirely true. When I scan an image,
>> the top left part gets scanned perfectly but the rest
>> is black with stripes through it. You can actually see some of the image
>> but it is not suited for copying. Well, it is better than
>> nothing but here is the thing. As this scanner is pretty useless if I
>> have to switch between Win 7 and OpenSUSE every time
>> I want to scan something, I want to help you with the development of
>> this driver.
>> Well, I know nothing about scanner driver programming but I do know C++
>> so I understand the code of the driver. I am not
>> willing to donate my scanner as it does work with Win 7 and if it is
>> absolutely necessary I will switch to Win 7 to scan. But I
>> am willing to do whatever you suggest to try to solve it. You could send
>> me code changes to see if these would work or explain what
>> I must modify to correct errors.
>> Anyway, it is nice that there is some support for this scanner because I
>> am not willing to buy a specific scanner if I already
>> have a scanner.
>> You can see the picture at http://dss.nl.eu.org/pictures/out.png. As far
>> as I know, the scanner is fine. I just scanned the interior of the
>> scanner, no sheet. There is a special negatives holder that always shows
>> up, it makes a nice test scan as it is not confidential.
>> Kind regards,
>> Daniël Sonck
> 	Hello,
> 	did you use a release or compiled from latest git source code ?
> Regards,
> 	Stef
I compiled from the latest git source code. The release that came with 
openSUSE did not want to work or recognize my printer.



Daniël Sonck
WWW: http://dss.nl.eu.org/
TEL: +31683554997
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