Public bug reported:
I have a Canon MF 4570 and MF 4730, which works by default on ubuntu
15.10 and ubuntu 14.04.3 with packages sane-backends.
The problem is after first scan, I can not scan for second time. I need
to reconnect the USB cable to use the scanner again.
$ scanimage -L
device `pixma:04A92736_000000000000' is a CANON Canon i-SENSYS MF4500 Series
multi-function peripheral
lsusb
Bus 004 Device 002: ID 8087:8000 Intel Corp.
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 8087:8008 Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
Bus 001 Device 002: ID 0502:3318 Acer, Inc.
Bus 001 Device 010: ID 04a9:2736 Canon, Inc. I-SENSYS MF4550d
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
$ scanimage --test -d pixma:04A92736_000000000000
scanimage: scanning image of size 640x877 pixels at 24 bits/pixel
scanimage: acquiring RGB frame, 8 bits/sample
scanimage: reading one scanline, 1920 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, 7 bytes... PASS
scanimage: stepped read, 3 bytes... PASS
$ scanimage --test -d pixma:04A92736_000000000000
scanimage: scanning image of size 640x877 pixels at 24 bits/pixel
scanimage: acquiring RGB frame, 8 bits/sample
scanimage: reading one scanline, 1920 bytes... FAIL Error: Error during device
I/O
After replug USB to 2.0 OR 3.0 port
scanimage --test -d pixma:04A92736_000000000000
scanimage: scanning image of size 640x877 pixels at 24 bits/pixel
scanimage: acquiring RGB frame, 8 bits/sample
scanimage: reading one scanline, 1920 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
$ uname -a && cat /etc/issue
Linux ExMachine 4.2.0-25-generic #30-Ubuntu SMP Mon Jan 18 12:31:50 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux
Ubuntu 15.10 \n \l
$ dpkg -l | grep sane
ii libsane:amd64 1.0.25+git20150528-1ubuntu2
amd64 API library for scanners
ii libsane-common 1.0.25+git20150528-1ubuntu2
all API library for scanners -- documentation and support
files
ii libsane-hpaio 3.15.7-0ubuntu4
amd64 HP SANE backend for multi-function peripherals
ii libsane-perl 0.05-2build2
amd64 Perl bindings for the SANE (Scanner Access Now Easy)
Project
ii sane 1.0.14-11
amd64 scanner graphical frontends
ii sane-utils 1.0.25+git20150528-1ubuntu2
amd64 API library for scanners -- utilities
I guess that does not close USB port after the completion of the scan.
While using hack present
http://askubuntu.com/questions/278473/canon-lide-110-should-reconnect-usb-for-each-scan
Like problem already be post bugreport
https://bugs.launchpad.net/ubuntu/+source/sane-backends/+bug/1184699
** Affects: sane-backends (Ubuntu)
Importance: Undecided
Status: New
** Tags: canon sane sane-backends
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https://bugs.launchpad.net/bugs/1536504
Title:
Canon i-Sensys scan only once, need to replug the usb cable
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