[sane-devel] Canon MG7150

[Rolf Bensch]

Hi Gert,

Attached patch should fix your problem.

Please report anyway, so that I can patch SANE sources.

Cheers,
Rolf


Am 15.05.2014 09:34, schrieb Gert Cauwenberg:
> Scanning with resolutions from 75 up to 600dpi works fine.
> At 1200dpi it does scan, it does produce an image with the expected size
> - but the image 'wraps around' - half of the original takes up the whole
> scanwidth, and then the second half is overlayed.
> At 600 dpi: http://imgur.com/69DqOt0
> At 1200 dpi: http://imgur.com/KanArkn
> 
> At 2400 dpi the same effect occurs, but now 4 times. Seems like the
> software somewhere expects a 600 dpi image?
> 
> On this device all settings are controlled via touch screen, so I'm not
> sure what 'buttons' I should press - or how I am to run scanimage -A at
> the exact moment the screen is touched. Anyway, whenever I run scanimage
> -A I get the same output:
> 
> [sanei_debug] Setting debug level of pixma to
> 11.                                                                                        
> 
> [pixma] pixma is compiled with pthread
> support.                                                                                          
> 
> [pixma] pixma version
> 0.17.4                                                                                                             
> 
> [pixma] Scanner model found: Name MG7100(Canon PIXMA MG7100 Series)
> matches MG7100 series                                                
> [pixma] pixma_collect_devices() found Canon PIXMA MG7100 Series at
> bjnp://7DCF69000000.local:8612
> [pixma] pixma_open(): Canon PIXMA MG7100 Series
> 
> (...)
> 
>   Buttons:
>     --button-update
>         Update button state
>     --button-1 <int> [0] [read-only]
>         Button 1
>     --button-2 <int> [0] [read-only]
>         Button 2
>     --original <int> [0] [read-only]
>         Type of original to scan
>     --target <int> [0] [read-only]
>         Target operation type
>     --scan-resolution <int> [0] [read-only]
>         Scan resolution
> 
> 
> 
> 2014-05-14 19:17 GMT+02:00 Rolf Bensch <rolf at bensch-online.de
> <mailto:rolf at bensch-online.de>>:
> 
>     Hi Gert,
> 
>     Am 14.05.2014 11:15, schrieb Gert Cauwenberg:
>     > Hello,
>     >
>     > Since yesterday I'm the owner of a Canon MG7150 all-in-one, and of
>     > course I wanted to get it working under linux.
>     > I'm running Ubuntu 14.04, which comes with sane backends 1.0.23. With
>     > that version the scanner doesn't get detected - quite understandably
>     > after looking at the source. I then installed sane backends 1.0.24,
>     > with the scanner connected via wifi.
>     >
>     > And ... good news!
>     >
>     > scanimage -L detects the scanner, and using the 'simple scan'
>     > application I was able to scan an image.
>     >
> 
>     Many thanks for your report.
> 
>     You can install xsane. It's an easy to use gui.
> 
>     > If there is anything more that I should test, let me know.
> 
>     Please check and report all scan resolutions up to 2400 dpi.
> 
>     And please check and report button support.
> 
>     How to check button support:
>     (1) Press any button.
>     (2) Check output from 'scanimage -A'.
>     (3) Repeat (1) and (2) with all other buttons.
> 
>     The response from scanimage should contain useful data like this:
> 
>       Buttons:
>         --button-update
>             Update button state
>         --button-1 <int> [1] [read-only]
>             Button 1
>         --button-2 <int> [0] [read-only]
>             Button 2
>         --original <int> [0] [read-only]
>             Type of original to scan
>         --target <int> [2] [read-only]
>             Target operation type
>         --scan-resolution <int> [0] [read-only]
>             Scan resolution
> 
>     If you don't get any data here, enable debug output with 'export
>     SANE_DEBUG_PIXMA=11'. Then the response should look like this:
> 
>       Buttons:
>         --button-update
>             Update button state
>     [pixma] INTR T=1.654 len=32
>     [pixma]  00000000:00 20 00 00 00 00 00 00  00 00 00 00 00 00 00 00
>     [pixma]  00000010:00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
>     [pixma]
>         --button-1 <int> [1] [read-only]
>             Button 1
>         --button-2 <int> [0] [read-only]
>             Button 2
>         --original <int> [0] [read-only]
>             Type of original to scan
>         --target <int> [2] [read-only]
>             Target operation type
>         --scan-resolution <int> [0] [read-only]
>             Scan resolution
> 
>     Please provide the lines starting with [pixma] with the pressed button.
> 
>     Many thanks for your help.
> 
>     Cheers,
>     Rolf
> 
> 
> 
-------------- next part --------------
--- ./pixma_mp150.c	2014-05-15 18:06:39.000000000 +0200
+++ ../sane-backends/backend/pixma_mp150.c	2014-05-15 18:15:43.000000000 +0200
@@ -1128,7 +1128,8 @@
               && s->cfg->pid != MG3100_PID
               && s->cfg->pid != MG2100_PID
               && s->cfg->pid != MG5300_PID
-              && s->cfg->pid != MG6300_PID)
+              && s->cfg->pid != MG6300_PID
+              && s->cfg->pid != MG7100_PID)
               reorder_pixels (mp->linebuf, sptr, c, n, m, s->param->wx, line_size);
           
           /* Crop line to selected borders */