I am having a similar problem with a HP 6L. Here's my data:

2) lsmod|grep usb returns:


usblp                  18307  0 
snd_usb_audio         122982  2 
snd_hwdep              13668  2 snd_hda_codec,snd_usb_audio
snd_usbmidi_lib        25395  1 snd_usb_audio
snd_pcm                97188  4 
snd_hda_intel,snd_hda_codec,snd_usb_audio,snd_ctxfi
snd_rawmidi            30748  2 snd_usbmidi_lib,snd_seq_midi
snd                    78855  24 
snd_hda_codec_analog,snd_hda_intel,snd_hda_codec,snd_usb_audio,snd_ctxfi,snd_hwdep,snd_usbmidi_lib,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
usbhid                 47199  0 
hid                    99559  1 usbhid

3 -5) results in:

Apr 16 23:53:54 PhenomIIX4 kernel: [ 1458.496026] usb 2-2: new full-speed USB 
device number 12 using ohci_hcd
Apr 16 23:53:54 PhenomIIX4 mtp-probe: checking bus 2, device 12: 
"/sys/devices/pci0000:00/0000:00:0a.0/usb2/2-2"
Apr 16 23:53:54 PhenomIIX4 mtp-probe: bus: 2, device: 12 was not an MTP device
Apr 16 23:53:54 PhenomIIX4 kernel: [ 1458.748725] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 16 23:53:54 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0
Apr 16 23:53:54 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 16 23:53:54 PhenomIIX4 udev-configure-printer: Device vendor/product is 
067B:2305
Apr 16 23:53:54 PhenomIIX4 udev-configure-printer: failed to claim interface
Apr 16 23:53:54 PhenomIIX4 udev-configure-printer: failed to claim interface
Apr 16 23:53:54 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 16 23:53:54 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 16 23:53:54 PhenomIIX4 udev-configure-printer: MFG:Hewlett-Packard MDL:HP 
LaserJet 6L SERN:- serial:-
Apr 16 23:53:55 PhenomIIX4 kernel: [ 1459.766806] usblp0: removed
Apr 16 23:53:55 PhenomIIX4 kernel: [ 1459.845756] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 16 23:53:55 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 16 23:53:55 PhenomIIX4 udev-configure-printer: URI matches without serial 
number: usb://HP/LaserJet%206L
Apr 16 23:53:55 PhenomIIX4 udev-configure-printer: No serial number URI matches 
so using those without
Apr 16 23:53:55 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 16 23:53:55 PhenomIIX4 udev-configure-printer: Device already handled
Apr 16 23:53:55 PhenomIIX4 udev-configure-printer: Consider also queues with 
"/usb/lp0" or "/usblp0" in their URIs as matching
Apr 16 23:53:55 PhenomIIX4 udev-configure-printer: URI of print queue: 
usb://HP/LaserJet%206L, normalized: laserjet 6l
Apr 16 23:53:55 PhenomIIX4 udev-configure-printer: URI of detected printer: 
usb://HP/LaserJet%206L, normalized: laserjet 6l
Apr 16 23:53:55 PhenomIIX4 udev-configure-printer: Queue 
ipp://localhost:631/printers/HP-LaserJet-6L has matching device URI
Apr 16 23:53:55 PhenomIIX4 udev-configure-printer: Re-enabled printer 
ipp://localhost:631/printers/HP-LaserJet-6L

6) lsusb lists
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 006: ID 0bda:8187 Realtek Semiconductor Corp. RTL8187 Wireless 
Adapter
Bus 002 Device 002: ID 041e:30de Creative Technology, Ltd 
Bus 002 Device 007: ID 04b3:3022 IBM Corp. 
Bus 002 Device 008: ID 046d:c245 Logitech, Inc. 
Bus 002 Device 009: ID 04b3:3021 IBM Corp. 
Bus 002 Device 010: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader
Bus 002 Device 012: ID 067b:2305 Prolific Technology, Inc. PL2305 Parallel Port

with device 012 representing the USB2Parallel cable.

7) $ ls -l /dev/usb/lp* /dev/bus/usb/*/*
crw-rw-r-- 1 root root 189,   0 Apr 16 23:29 /dev/bus/usb/001/001
crw-rw-r-- 1 root root 189,   5 Apr 16 23:29 /dev/bus/usb/001/006
crw-rw-r-- 1 root root 189, 128 Apr 16 23:29 /dev/bus/usb/002/001
crw-rw-r-- 1 root root 189, 129 Apr 16 23:29 /dev/bus/usb/002/002
crw-rw-r-- 1 root root 189, 134 Apr 16 23:29 /dev/bus/usb/002/007
crw-rw-r-- 1 root root 189, 135 Apr 16 23:29 /dev/bus/usb/002/008
crw-rw-r-- 1 root root 189, 136 Apr 16 23:29 /dev/bus/usb/002/009
crw-rw-r-- 1 root root 189, 137 Apr 16 23:29 /dev/bus/usb/002/010
crw-rw-r-- 1 root lp   189, 139 Apr 16 23:53 /dev/bus/usb/002/012
crw-rw---- 1 root lp   180,   0 Apr 16 23:53 /dev/usb/lp0

8) sudo usb_printerid /dev/usb/lp0
Error: Input/output error: GET_DEVICE_ID on '/dev/usb/lp0'

The interesting thing is that I also had some "binary" content like
Daniel in previous attempts as well.

 hp-info -i

HP Linux Imaging and Printing System (ver. 3.12.2)
Device Information Utility ver. 5.2

Copyright (c) 2001-9 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

error: No device selected/specified or that supports this functionality.

9)hp-makeuri 002:012

HP Linux Imaging and Printing System (ver. 3.12.2)
Device URI Creation Utility ver. 5.0

Copyright (c) 2001-9 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

error: Device not found

10) lpinfo -v
network socket
network beh
direct hp
network smb
network http
network ipps
network ipp
network lpd
network https
direct usb://HP/LaserJet%206L
direct hpfax

While printing the following is repeatedly written to the syslog:
Apr 17 00:08:54 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 17 00:08:54 PhenomIIX4 kernel: [ 2358.784991] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 17 00:08:54 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 17 00:08:54 PhenomIIX4 udev-configure-printer: Device already handled
Apr 17 00:09:05 PhenomIIX4 kernel: [ 2370.329327] usb 2-2: usbfs: interface 0 
claimed by usblp while 'usb' sets config #1
Apr 17 00:09:05 PhenomIIX4 kernel: [ 2370.329491] usblp0: removed
Apr 17 00:09:15 PhenomIIX4 kernel: [ 2380.341010] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 17 00:09:15 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 17 00:09:15 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 17 00:09:15 PhenomIIX4 udev-configure-printer: Device already handled
Apr 17 00:09:20 PhenomIIX4 kernel: [ 2385.344068] usblp0: removed
Apr 17 00:09:30 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 17 00:09:30 PhenomIIX4 kernel: [ 2395.353004] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 17 00:09:30 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 17 00:09:30 PhenomIIX4 udev-configure-printer: Device already handled
Apr 17 00:09:35 PhenomIIX4 kernel: [ 2400.355953] usb 2-2: usbfs: interface 0 
claimed by usblp while 'usb' sets config #1
Apr 17 00:09:35 PhenomIIX4 kernel: [ 2400.356065] usblp0: removed
Apr 17 00:09:45 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 17 00:09:45 PhenomIIX4 kernel: [ 2410.365011] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 17 00:09:45 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 17 00:09:45 PhenomIIX4 udev-configure-printer: Device already handled
Apr 17 00:09:50 PhenomIIX4 kernel: [ 2415.368183] usblp0: removed
Apr 17 00:10:00 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 17 00:10:00 PhenomIIX4 kernel: [ 2425.377012] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 17 00:10:00 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 17 00:10:00 PhenomIIX4 udev-configure-printer: Device already handled
Apr 17 00:10:05 PhenomIIX4 kernel: [ 2430.380148] usblp0: removed
Apr 17 00:10:15 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 17 00:10:15 PhenomIIX4 kernel: [ 2440.389023] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 17 00:10:15 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 17 00:10:15 PhenomIIX4 udev-configure-printer: Device already handled
Apr 17 00:10:20 PhenomIIX4 kernel: [ 2445.391983] usb 2-2: usbfs: interface 0 
claimed by usblp while 'usb' sets config #1
Apr 17 00:10:20 PhenomIIX4 kernel: [ 2445.392095] usblp0: removed
Apr 17 00:10:31 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 17 00:10:31 PhenomIIX4 kernel: [ 2455.401050] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 17 00:10:31 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 17 00:10:31 PhenomIIX4 udev-configure-printer: Device already handled
Apr 17 00:10:36 PhenomIIX4 kernel: [ 2460.404065] usblp0: removed
Apr 17 00:10:46 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 17 00:10:46 PhenomIIX4 kernel: [ 2470.413036] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 17 00:10:46 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 17 00:10:46 PhenomIIX4 udev-configure-printer: Device already handled
Apr 17 00:10:51 PhenomIIX4 kernel: [ 2475.415982] usb 2-2: usbfs: interface 0 
claimed by usblp while 'usb' sets config #1
Apr 17 00:10:51 PhenomIIX4 kernel: [ 2475.416095] usblp0: removed
Apr 17 00:11:01 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 17 00:11:01 PhenomIIX4 kernel: [ 2485.425036] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 17 00:11:01 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 17 00:11:01 PhenomIIX4 udev-configure-printer: Device already handled
Apr 17 00:11:06 PhenomIIX4 kernel: [ 2490.428169] usblp0: removed
Apr 17 00:11:16 PhenomIIX4 kernel: [ 2500.441039] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 17 00:11:16 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 17 00:11:16 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 17 00:11:16 PhenomIIX4 udev-configure-printer: Device already handled
Apr 17 00:11:21 PhenomIIX4 kernel: [ 2505.443997] usb 2-2: usbfs: interface 0 
claimed by usblp while 'usb' sets config #1
Apr 17 00:11:21 PhenomIIX4 kernel: [ 2505.444104] usblp0: removed
Apr 17 00:11:31 PhenomIIX4 kernel: [ 2515.457044] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 17 00:11:31 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 17 00:11:31 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 17 00:11:31 PhenomIIX4 udev-configure-printer: Device already handled
Apr 17 00:11:36 PhenomIIX4 kernel: [ 2520.460188] usb 2-2: usbfs: interface 0 
claimed by usblp while 'usb' sets config #1
Apr 17 00:11:36 PhenomIIX4 kernel: [ 2520.460405] usblp0: removed
Apr 17 00:11:46 PhenomIIX4 kernel: [ 2530.469082] usblp0: USB Bidirectional 
printer dev 12 if 0 alt 1 proto 2 vid 0x067B pid 0x2305
Apr 17 00:11:46 PhenomIIX4 udev-configure-printer: add 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2/2-2:1.0/usb/lp0
Apr 17 00:11:46 PhenomIIX4 udev-configure-printer: device devpath is 
/devices/pci0000:00/0000:00:0a.0/usb2/2-2
Apr 17 00:11:46 PhenomIIX4 udev-configure-printer: Device already handled

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Title:
  cups will not print to USB connected Samsung ML-4500

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