[sane-devel] Canon MF231

[Orkhan Guliyev]

Hello.

I install printer driver for this device from Canon official site. All 
is good, and I can print documents. But with scanner situation is bad. I 
see inSANE project page 
<http://www.sane-project.org/sane-mfgs.html#Z-CANON>that Canon MF231 is 
fully supported but system doesn't see any scanner device from USB.

When I check|lsusb|, I get:

|Bus 002 Device 002: ID 8087:8000 Intel Corp. Bus 002 Device 001: ID 
1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:8008 
Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root 
hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 
003 Device 004: ID 1c4f:0026 SiGma Micro Keyboard Bus 003 Device 003: ID 
093a:2510 Pixart Imaging, Inc. Optical Mouse Bus 003 Device 002: ID 
04a9:27d1 Canon, Inc. Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 
2.0 root hub |

When I enter the command|scanimage -L|:

|No scanners were identified. If you were expecting something different, 
check that the scanner is plugged in, turned on and detected by the 
sane-find-scanner tool (if appropriate). Please read the documentation 
which came with this software (README, FAQ, manpages). |

When I enter:|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. could not fetch 
string descriptor: Pipe error could not fetch string descriptor: Pipe 
error found USB scanner (vendor=0x04a9 [Language Error], product=0x27d1 
[Language Error]) at libusb:003:002 # 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. |

And finally this is report|of apt list libsane-dev -a|:

|libsane-dev/xenial 1.0.27+git20171029-xenial0 amd64 [can be updated: 
1.0.25+git20150528-1ubuntu2.16.04.1] libsane-dev/xenial-updates,now 
1.0.25+git20150528-1ubuntu2.16.04.1 amd64 [installed, can be updated: 
1.0.27+git20171029-xenial0] libsane-dev/xenial 
1.0.25+git20150528-1ubuntu2 amd64 |

I read many issues in internet but they very old (since 2007-2011). SANE 
is fully supported MF231 scan, then why Ubuntu 16.04 (.03 LTS) doesn't 
see scanner of this device?

Note: Before I made such an installation. But on Ubuntu 17.04. Then 
there is the same problem but theuser suggested 
<https://askubuntu.com/questions/952169/canon-i-sensys-mf231/>that not 
enough package:|libsane-dev|. I install it in Ubuntu 16.04 but no effect.

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