[sane-devel] Canon Pixma MX525

[Trygve Flathen]

On Mon, Mar 10, 2014 at 6:17 PM, Rolf Bensch <rolf at bensch-online.de> wrote:
> ADF paper empty detection is buggy for all MP150 based scanners. If you
> like to help fixing this issue, please join this thread:
> http://lists.alioth.debian.org/pipermail/sane-devel/2014-March/032138.html.
> I cannot fix this by myself 'cause I have no ADF scanner.

Thanks for the pointer to that thread. By joining the thread, I assume
you mean use the same subject. I will have a look at the code etc. in
the near future.


Meanwhile, I can confirm that the following, except for resolution
1200, works as expected (at least by first looks)  on my
USB-only-connected Pixma MX525, source flatbed:

   scanimage --resolution 75 > 75.pnm
   scanimage --resolution 150 > 150.pnm
   scanimage --resolution 300 > 300.pnm
   scanimage --resolution 600 > 600.pnm
   scanimage --resolution 1200 > 1200.pnm
   scanimage --mode color > color.pnm
   scanimage --mode gray > gray.pnm
   scanimage --mode lineart > lineart.pnm
   scanimage --gamma 0.7  > gamma.pnm
   scanimage --gamma 4  > gamma4.pnm
   scanimage -l 100 -t 50 -x 20 -y 20 > pos.pnm
   scanimage -l 100 -t 150 -x 20 -y 20 --resolution 1200 > 1200small.pnm
   scanimage --format tiff >x.tiff
   scanimage -p > x.pnm

With resolution 1200, there seems to be some interlacing in the output.
See http://flathen.net/tmp/75.pnm
and http://flathen.net/tmp/1200.pnm.gz   (287MB, 410MB unpacked)
and http://flathen.net/tmp/1200small.pnm
(You need the big one to see clearly.)

-Trygve


Some other outputs:

$ scanimage -V
scanimage (sane-backends) 1.0.25git; backend version 1.0.25
$ scanimage -L
device `pixma:04A91769_12999B' is a CANON Canon PIXMA MX520 Series
multi-function peripheral
$ scanimage -A

All options specific to device `pixma:04A91769_12999B':
  Scan mode:
    --resolution auto||75|150|300|600|1200dpi [75]
        Sets the resolution of the scanned image.
    --mode auto|Color|Gray|Lineart [Color]
        Selects the scan mode (e.g., lineart, monochrome, or color).
    --source Flatbed|Automatic Document Feeder [Flatbed]
        Selects the scan source (such as a document-feeder). Set source before
        mode and resolution. Resets mode and resolution to auto values.
    --button-controlled[=(yes|no)] [no]
        When enabled, scan process will not start immediately. To proceed,
        press "SCAN" button (for MP150) or "COLOR" button (for other models).
        To cancel, press "GRAY" button.
  Gamma:
    --custom-gamma[=(auto|yes|no)] [yes]
        Determines whether a builtin or a custom gamma-table should be used.
    --gamma-table auto|0..255,...
        Gamma-correction table.  In color mode this option equally affects the
        red, green, and blue channels simultaneously (i.e., it is an intensity
        gamma table).
    --gamma auto|0.299988..5 [2.2]
        Changes intensity of midtones
  Geometry:
    -l auto|0..216.069mm [0]
        Top-left x position of scan area.
    -t auto|0..297.011mm [0]
        Top-left y position of scan area.
    -x auto|0..216.069mm [216.069]
        Width of scan-area.
    -y auto|0..297.011mm [297.011]
        Height of scan-area.
  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
  Extras:
    --threshold auto|0..100% (in steps of 1) [inactive]
        Select minimum-brightness to get a white point
    --threshold-curve auto|0..127 (in steps of 1) [inactive]
        Dynamic threshold curve, from light to dark, normally 50-65

$ scanimage -T
scanimage: scanning image of size 638x877 pixels at 24 bits/pixel
scanimage: acquiring RGB frame, 8 bits/sample
scanimage: reading one scanline, 1914 bytes... PASS
scanimage: reading one byte... PASS
scanimage: stepped read, 2 bytes... PASS
scanimage: stepped read, 4 bytes... PASS
scanimage: stepped read, 8 bytes... PASS
scanimage: stepped read, 16 bytes... PASS
scanimage: stepped read, 32 bytes... PASS
scanimage: stepped read, 64 bytes... PASS
scanimage: stepped read, 128 bytes... PASS
scanimage: stepped read, 256 bytes... PASS
scanimage: stepped read, 512 bytes... PASS
scanimage: stepped read, 1024 bytes... PASS
scanimage: stepped read, 2048 bytes... PASS
scanimage: stepped read, 2047 bytes... PASS
scanimage: stepped read, 1023 bytes... PASS
scanimage: stepped read, 511 bytes... PASS
scanimage: stepped read, 255 bytes... PASS
scanimage: stepped read, 127 bytes... PASS
scanimage: stepped read, 63 bytes... PASS
scanimage: stepped read, 31 bytes... PASS
scanimage: stepped read, 15 bytes... PASS
scanimage: stepped read, 7 bytes... PASS
scanimage: stepped read, 3 bytes... PASS