skanlite not finding Printer

[atipp]

KDE Live 64bit

skanlite does not detect Canon printer which is installed and printing.

Installed simple-scan and get following error:

Code: Select all

one[~]$ simple-scan

** (simple-scan:3934): WARNING **: Unable to get open device: Invalid argument
process 3934: arguments to dbus_message_iter_append_basic() were incorrect, assertion "_dbus_check_is_valid_utf8 (*string_p)" failed in file dbus-message.c line 2749.
This is normally a bug in some application using the D-Bus library.
  D-Bus not built with -rdynamic so unable to print a backtrace
Aborted

Cannot open scanlite or simple-scan as sudo to check if in that mode it would find the printer.

Which would be the device /dev/ for the printer to give as an option with flag -d?

[djemos]

I do not know. If it is a usb printer look on /dev/usb/ to see what ports are there. Or see dmesg output ( sudo dmesg | tail) for errors.

[atipp]

It is a usb connected printer. Tried some /dev/* and nothing doing. dmesg does not tell anything and does not change output.

sudo simple-scan or sudo skanlite gives me:

Code: Select all

sudo skanlite
No protocol specified
skanlite: cannot connect to X server :0
[/code/
How can I then open as sudo?

If I start simple-scan as root-dolphin printer still not found and output of dmesg is:
[code]
sudo dmesg|tail
[ 3721.545609] usbcore: registered new interface driver snd-usb-audio
[ 3721.604881] uvcvideo: Found UVC 1.00 device USB 2.0 Camera (0c45:62f1)
[ 3721.609871] input: USB 2.0 Camera as /devices/pci0000:00/0000:00:1d.7/usb1/1-6/1-6.2/1-6.2:1.0/input/input14
[ 3721.610090] usbcore: registered new interface driver uvcvideo
[ 3721.610092] USB Video Class driver (1.1.1)
[ 3721.743841] usb 1-6.2: 3:1: cannot get freq at ep 0x84
[ 3721.765964] usb 1-6.2: 3:1: cannot get freq at ep 0x84
[ 3721.816095] usb 1-6.2: 3:1: cannot get freq at ep 0x84
[ 3721.838216] usb 1-6.2: 3:1: cannot get freq at ep 0x84
[ 4339.804415] usb 1-6.2: USB disconnect, device number 7

[djemos]

Add user one to lp group. Log out and log in again. Then run simple-scan as user.