I have a strange problem.
Printing was working without a problem until I had to cancel (rudely by switching the printer off in mid-print). Since then I have been unable to connect, through CUPS, back to the printer.
lsusb detects and shows the printer is connected.
Bus 001 Device 005: ID 04b8:081e Seiko Epson Corp. MFP Composite Device
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
lpinfo -v does not show any usb option.
I can redirect output to the printer successfully e.g.
echo $PATH > /dev/usb/lp0
In CUPS webadmin searching for the printer does not bring it up like it used to (I guess this is for the same reason that lpinfo -v does not show it).
I have tried various options, to try and force a connection, with the 'Device URI' in CUPS but with no success.
The printer (although I don't think this has anything to do with this problem and has been working previously with no probs whatsoever) is an Epson Colour Stylus R340 and my distro is Gentoo.
I have re-emerged CUPS but with no success. There appears to be no pertinent messages in any of the log files that may relate to this problem. Any ideas?