david@david-desktop:~$ lsmod | grep usb
usblp                  20480  1 
usbhid                 35840  0 
hid                    50560  1 usbhid
usbcore               149488  7 usblp,usbhid,uhci_hcd,ohci_hcd,ehci_hcd
david@david-desktop:~$ tail -f /var/log/messages
Jun 21 14:09:42 david-desktop kernel: [18446.794100] ccpd[8943]: segfault at 0 ip 0805246d sp bfb57ca0 error 4 in ccpd[8048000+c000]
Jun 21 14:22:40 david-desktop -- MARK --
Jun 21 14:28:35 david-desktop kernel: [19579.517937] ccpd[9020]: segfault at 0 ip 0805246d sp bfff7d10 error 4 in ccpd[8048000+c000]
Jun 21 14:42:40 david-desktop -- MARK --
Jun 21 15:02:40 david-desktop -- MARK --
Jun 21 15:22:40 david-desktop -- MARK --
Jun 21 15:26:41 david-desktop kernel: [23065.546273] usblp0: nonzero read bulk status received: -71
Jun 21 15:26:41 david-desktop kernel: [23065.546309] usb 3-2: USB disconnect, address 3
Jun 21 15:26:42 david-desktop kernel: [23066.221306] ccpd[9210] general protection ip:b7e7c472 sp:bfbecc80 error:0 in libc-2.8.90.so[b7e0b000+158000]
Jun 21 15:26:42 david-desktop kernel: [23066.222995] usblp0: removed
Jun 21 15:28:12 david-desktop kernel: [23156.976013] usb 3-2: new high speed USB device using ehci_hcd and address 4
Jun 21 15:28:13 david-desktop kernel: [23157.145157] usb 3-2: configuration #1 chosen from 1 choice
Jun 21 15:28:13 david-desktop kernel: [23157.152326] usblp0: USB Bidirectional printer dev 4 if 0 alt 0 proto 2 vid 0x04A9 pid 0x26DB
^C
david@david-desktop:~$ lpinfo -v
lpinfo: Unable to connect to server: Connection refused
david@david-desktop:~$ sudo lpinfo -v
[sudo] password for david: 
lpinfo: Unable to connect to server: Connection refused
david@david-desktop:~$