Hi Jonathan,
Attached patch should fix the 1200 and 2400 dpi issue. This file patches
backend/pixma_mp150.c.
Please copy attached file into the folder backend/ and process from
inside backend/ this command: patch pixma_mp150.c pixma_mp150.c.patch1
Then 'cd ..' and 'make && sudo make install'.
Please report your results again.
If this patch is working, I'll update Sane's development sources.
Cheers,
Rolf
Am 24.07.2015 um 16:58 schrieb Jonathan Anderson:
> Hi,
>
> I've tested the sane-backends-git20150724 with Fedora 22.
> The scanner was correctly detected and scanned 600 dpi good as you said.
> It showed stripes on 1200 and 2400 just as you said.
>
> Do you need to see the scans or can I give you any additional info to
> help you?
>
> Kind regards
> Jonathan
>
> ------------------------------------------------------------------------
> *From:* Rolf Bensch <r...@bensch-online.de>
> *To:* Jonathan Anderson <emailjonathananderson-...@yahoo.com>
> *Cc:* "sane-devel@lists.alioth.debian.org"
> <sane-devel@lists.alioth.debian.org>
> *Sent:* Friday, July 24, 2015 9:08 AM
> *Subject:* Re: [sane-devel] pixma mg7500 testing
>
> Hi Jonathan,
>
> Please install SANE Development (git) Version as described in
> README.linux (I assume you're using Linux):
> http://www.sane-project.org/docs.html .
>
> Then your scanner should scan up to 600dpi without any problems.
>
> I assume that you'll see stripes on 1200 and 2400 dpi images, then I'll
> create a patch for your scanner. Please report your results.
>
> Many thanks for your help.
>
> Cheers,
> Rolf
>
> Am 22.07.2015 um 16:48 schrieb Jonathan Anderson:
>
>
>> I'd be happy to help with the testing of a Canon Pixma MG7550.
>> Please tell me what to do.
>>
>> Kind regards
>> Jonathan
>
>
>
--- ./pixma_mp150.c 2015-07-25 10:31:20.010100561 +0200
+++ ../sane-backends/backend/pixma_mp150.c 2015-07-25 10:33:42.442250855
+0200
@@ -1154,7 +1154,8 @@
&& s->cfg->pid != MG5500_PID
&& s->cfg->pid != MG6300_PID
&& s->cfg->pid != MG6400_PID
- && s->cfg->pid != MG7100_PID)
+ && s->cfg->pid != MG7100_PID
+ && s->cfg->pid != MG7500_PID)
reorder_pixels (mp->linebuf, sptr, c, n, m, s->param->wx,
line_size);
/* Crop line to selected borders */
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