[sane-devel] Xsane --> Canon Pixma scanner problems

[Bill]

I am happy to do testing or assist in any way that I can.

Kind regards,

Bill

On 3/4/19 2:24 PM, thierry at ordissimo.com wrote:
> Le 2019-03-04 18:22, Rolf Bensch a écrit :
>> Hi Bill,
>>
>> Your scanner isn't supported by SANE. I suppose you're using Canon's
>> ScanGear driver. Please ask Canon for technical support.
>>
>> Maybe somebody else can help with your xsane issues.
>>
>> Hope this helps.
>>
>> Cheers,
>> Rolf
>>
>> Am 04.03.19 um 06:17 schrieb Bill:
>>
>>> Dear Sir/Madam:
>>>
>>> My system is Ubuntu 18.04.2 with a new Canon Pixma TS6220, which
>>> replaces an HP Photosmart 6520.
>>> All of the following comments refer to my new Canon printer.
>>> Xsane with my recently retired HP works perfectly (except, I think
>>> the Canon images are the better).
>>>
>>> 1) I am able to move the dashed lines to frame the print to be
>>> scanned, but the output always contains the images of what ever is
>>> on the platen on a "full size" white background.
>>> 2) I have selected “inches” as the unit of measurement, but the
>>> preview window has “px” in the upper left corner, and the
>>> dimensions in the windows at the bottom of the main menu are in
>>> pixels. These dimensions do not change as I adjust the frame of the
>>> photo to be scanned and always read 2480*3507*24 (24.9MB).
>>> 3) There are no length markings along the side or top of the preview
>>> window.
>>> 4) In Advanced Options, the UOM displays “px”. The sliders
>>> change as I adjust the frame, but for a 4” x 6” photo in the
>>> upper left corner, the lower right corner is shown to be .00235x,
>>> .00154y.
>>> 5) For all resolutions > 75 ppi, the scanned image of the photos is
>>> very dark/saturated – beyond my ability to correct.
>>> 6) Max scan resolution in the main menu is only 300, whereas it is
>>> 1200 with the HP scanner.
>>>
>>> This printer is WiFi equipped, but I am using it with a usb
>>> cable as my pc and printer are on the 2nd floor of our house while
>>> the router and my wife’s pc are on the 1st floor. I am willing to
>>> help out in the testing of your Pixma backend if I can be of any
>>> assistance.
>>>
>>> Kind regards,
>>>
>>> Bill
>>>
>>> System info:
>>>
>>> $ uname -a
>>> Linux XXX 4.15.0-45-generic #48-Ubuntu SMP Tue Jan 29 16:28:13 UTC
>>> 2019 x86_64 x86_64 x86_64 GNU/Linux
>>>
>>> $ lsb_release -a
>>> No LSB modules are available.
>>> Distributor ID:    Ubuntu
>>> Description:    Ubuntu 18.04.2 LTS
>>> Release:    18.04
>>> Codename:    bionic
>>>
>>> $ lsusb
>>> Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>>> Bus 001 Device 008: ID 04a9:1856 Canon, Inc.
>>> Bus 001 Device 005: ID 0bda:0153 Realtek Semiconductor Corp. Mass
>>> Storage Device
>>> Bus 001 Device 004: ID 05e3:0608 Genesys Logic, Inc. Hub
>>> Bus 001 Device 003: ID 046d:c517 Logitech, Inc. LX710 Cordless
>>> Desktop Laser
>>> Bus 001 Device 002: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
>>> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>>>
>>> $ sudo sane-find-scanner
>>> # sane-find-scanner will now attempt to detect your scanner. If
>>> the
>>> # result is different from what you expected, first make sure your
>>> # scanner is powered up and properly connected to your computer.
>>>
>>> # No SCSI scanners found. If you expected something different,
>>> make sure that
>>> # you have loaded a kernel SCSI driver for your SCSI adapter.
>>>
>>> found USB scanner (vendor=0x04a9 [Canon], product=0x1856 [TS6200
>>> series]) at libusb:001:008
>>> could not fetch string descriptor: Pipe error
>>> could not fetch string descriptor: Pipe error
>>> # Your USB scanner was (probably) detected. It may or may not be
>>> supported by
>>> # SANE. Try scanimage -L and read the backend's manpage.
>>>
>>> # Not checking for parallel port scanners.
>>>
>>> # Most Scanners connected to the parallel port or other
>>> proprietary ports
>>> # can't be detected by this program.
>>>
>>> $ scanimage -L
>>> device `canon_pixma:libusb:001:008' is a CANON TS6200 series flatbed
>>> scanner
> Bonsour,
> I find it unfortunate that the backend pixma does not take input usb-id.
> The pixma driver supports all printer scanners:
>  canon pixma ts and canon pixma mg.
> Currently you have to add it directly in the code.
> Here is the patch that allows sane to operate to scan.
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