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When I try to scan, using simple-scan, the UI says Failed to scan -- Unable to connect to scanner
. When I run it from the command line I get:
joel@home:/usr/bin$ simple-scan -d
** (simple-scan:6554): DEBUG: Starting Simple Scan 2.32.0.1, PID=6554
** (simple-scan:6554): DEBUG: Restoring window to 600x400 pixels
** (simple-scan:6554): DEBUG: sane_init () -> SANE_STATUS_GOOD
** (simple-scan:6554): DEBUG: SANE version 1.0.22
** (simple-scan:6554): DEBUG: Requesting redetection of scan devices
** (simple-scan:6554): DEBUG: Processing request
** (simple-scan:6554): DEBUG: Requesting scan at 300 dpi from device '(null)'
** (simple-scan:6554): DEBUG: scanner_scan ("(null)", 300, SCAN_SINGLE)
** (simple-scan:6554): DEBUG: sane_get_devices () -> SANE_STATUS_GOOD
** (simple-scan:6554): DEBUG: Device: name="brother2:bus4;dev1" vendor="Brother" model="MFC-210C" type="USB scanner"
** (simple-scan:6554): DEBUG: Processing request
** (simple-scan:6554): DEBUG: sane_open ("brother2:bus4;dev1") -> SANE_STATUS_IO_ERROR
** (simple-scan:6554): WARNING **: Unable to get open device: Error during device I/O
FYI, I have already done:
joel@home:~$ sudo chmod a+rwx /dev/bus/usb
joel@home:~$ sudo chmod a+rwx /dev/bus/usb/*
If I run under sudo
:
joel@home:~$ sudo simple-scan
it works.
How can I get simple-scan to work without sudo?
Did not work for me. I seem to remember that the only way to do it was using sudo and a text version not simple scan. Will keep looking – Dennis – 2015-04-03T05:17:51.813
KayEss's suggestion ("sudo adduser username scanner") worked for my Raspbian install. – smashuu – 2017-03-04T22:32:26.537
2Seems that all user accounts aren't added to the scanner group. I used
sudo adduser username scanner
and then you need to log off and back in again for the group membership to be noticed by the OS. – KayEss – 2013-08-01T03:03:28.680