lsmod | grep usb usblp 18307 0 usbserial 47077 1 cypress_m8 usbhid 47199 1 hid_logitech hid 99559 2 hid_logitech,usbhid usb_storage 49198 0 tail -f /var/log/syslog Oct 21 18:11:04 boaz-desktop udev-configure-printer: URI of detected printer: usb://EPSON/WF-7520%20Series?serial=4E4B4C593030383003&interface=1, normalized: epson wf 7520 series serial 4e4b4c593030383003 interface 1 Oct 21 18:11:04 boaz-desktop udev-configure-printer: Queue ipp://localhost:631/printers/WF-7520-Series has matching device URI Oct 21 18:11:04 boaz-desktop udev-configure-printer: Re-enabled printer ipp://localhost:631/printers/WF-7520-Series Oct 21 18:14:09 boaz-desktop kernel: [39689.084932] usb 1-4: USB disconnect, device number 5 Oct 21 18:14:09 boaz-desktop kernel: [39689.086629] usblp0: removed Oct 21 18:14:09 boaz-desktop udev-configure-printer: remove /devices/pci0000:00/0000:00:0b.1/usb1/1-4 Oct 21 18:14:09 boaz-desktop udev-configure-printer: URI of print queue: usb://EPSON/WF-7520%20Series?serial=4E4B4C593030383003&interface=1, normalized: epson wf 7520 series serial 4e4b4c593030383003 interface 1 Oct 21 18:14:09 boaz-desktop udev-configure-printer: URI of detected printer: usb://EPSON/WF-7520%20Series?serial=4E4B4C593030383003&interface=1, normalized: epson wf 7520 series serial 4e4b4c593030383003 interface 1 Oct 21 18:14:09 boaz-desktop udev-configure-printer: Queue ipp://localhost:631/printers/WF-7520-Series has matching device URI Oct 21 18:14:09 boaz-desktop udev-configure-printer: Disabled printer ipp://localhost:631/printers/WF-7520-Series as the corresponding device was unplugged or turned off Oct 21 18:14:43 boaz-desktop kernel: [39723.168076] usb 1-4: new high-speed USB device number 6 using ehci_hcd Oct 21 18:14:43 boaz-desktop kernel: [39723.318162] usblp0: USB Bidirectional printer dev 6 if 1 alt 0 proto 2 vid 0x04B8 pid 0x087C Oct 21 18:14:43 boaz-desktop kernel: [39723.319429] scsi8 : usb-storage 1-4:1.2 Oct 21 18:14:43 boaz-desktop udev-configure-printer: add /devices/pci0000:00/0000:00:0b.1/usb1/1-4/1-4:1.1 Oct 21 18:14:43 boaz-desktop udev-configure-printer: device devpath is /devices/pci0000:00/0000:00:0b.1/usb1/1-4 Oct 21 18:14:43 boaz-desktop udev-configure-printer: Device vendor/product is 04B8:087C Oct 21 18:14:43 boaz-desktop udev-configure-printer: failed to claim interface Oct 21 18:14:43 boaz-desktop udev-configure-printer: add /devices/pci0000:00/0000:00:0b.1/usb1/1-4/1-4:1.1/usb/lp0 Oct 21 18:14:43 boaz-desktop udev-configure-printer: device devpath is /devices/pci0000:00/0000:00:0b.1/usb1/1-4 Oct 21 18:14:43 boaz-desktop udev-configure-printer: MFG:EPSON MDL:WF-7520 Series SERN:- serial:4E4B4C593030383003 Oct 21 18:14:44 boaz-desktop kernel: [39724.318760] scsi 8:0:0:0: Direct-Access EPSON Storage 1.00 PQ: 0 ANSI: 2 Oct 21 18:14:44 boaz-desktop kernel: [39724.321233] scsi 8:0:0:1: Direct-Access EPSON Storage 1.00 PQ: 0 ANSI: 2 Oct 21 18:14:44 boaz-desktop kernel: [39724.323720] scsi 8:0:0:2: Direct-Access EPSON Storage 1.00 PQ: 0 ANSI: 2 Oct 21 18:14:44 boaz-desktop kernel: [39724.325754] sd 8:0:0:0: Attached scsi generic sg2 type 0 Oct 21 18:14:44 boaz-desktop kernel: [39724.330243] sd 8:0:0:1: Attached scsi generic sg3 type 0 Oct 21 18:14:44 boaz-desktop kernel: [39724.330624] sd 8:0:0:2: Attached scsi generic sg4 type 0 Oct 21 18:14:44 boaz-desktop kernel: [39724.379180] sd 8:0:0:2: [sde] Attached SCSI removable disk Oct 21 18:14:44 boaz-desktop kernel: [39724.401111] sd 8:0:0:0: [sdc] Attached SCSI removable disk Oct 21 18:14:44 boaz-desktop kernel: [39724.404852] sd 8:0:0:1: [sdd] Attached SCSI removable disk Oct 21 18:14:44 boaz-desktop hp[11260]: io/hpmud/pp.c 627: unable to read device-id ret=-1 Oct 21 18:14:44 boaz-desktop kernel: [39724.492106] usblp0: removed Oct 21 18:14:44 boaz-desktop kernel: [39724.506462] usblp0: USB Bidirectional printer dev 6 if 1 alt 0 proto 2 vid 0x04B8 pid 0x087C Oct 21 18:14:44 boaz-desktop udev-configure-printer: add /devices/pci0000:00/0000:00:0b.1/usb1/1-4/1-4:1.1/usb/lp0 Oct 21 18:14:44 boaz-desktop python: io/hpmud/pp.c 627: unable to read device-id ret=-1 Oct 21 18:14:44 boaz-desktop udev-configure-printer: URI contains USB serial number Oct 21 18:14:44 boaz-desktop udev-configure-printer: URI match: usb://EPSON/WF-7520%20Series?serial=4E4B4C593030383003&interface=1 Oct 21 18:14:44 boaz-desktop udev-configure-printer: device devpath is /devices/pci0000:00/0000:00:0b.1/usb1/1-4 Oct 21 18:14:44 boaz-desktop udev-configure-printer: Device already handled Oct 21 18:14:44 boaz-desktop udev-configure-printer: Consider also queues with "/usb/lp0" or "/usblp0" in their URIs as matching Oct 21 18:14:44 boaz-desktop udev-configure-printer: URI of print queue: usb://EPSON/WF-7520%20Series?serial=4E4B4C593030383003&interface=1, normalized: epson wf 7520 series serial 4e4b4c593030383003 interface 1 Oct 21 18:14:44 boaz-desktop udev-configure-printer: URI of detected printer: usb://EPSON/WF-7520%20Series?serial=4E4B4C593030383003&interface=1, normalized: epson wf 7520 series serial 4e4b4c593030383003 interface 1 Oct 21 18:14:44 boaz-desktop udev-configure-printer: Queue ipp://localhost:631/printers/WF-7520-Series has matching device URI Oct 21 18:14:44 boaz-desktop udev-configure-printer: Re-enabled printer ipp://localhost:631/printers/WF-7520-Series lsusb 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 04b8:087c Seiko Epson Corp. Bus 002 Device 002: ID 0d9f:0002 Powercom Co., Ltd Black Knight PRO / WOW Uninterruptible Power Supply (Cypress HID->COM RS232) Bus 002 Device 003: ID 046d:c513 Logitech, Inc. MX3000 Cordless Desktop Receiver ls -l /dev/usb/lp* /dev/bus/usb/*/* crw-rw-r-- 1 root root 189, 0 Oct 21 07:12 /dev/bus/usb/001/001 crw-rw-r--+ 1 root lp 189, 5 Oct 21 18:14 /dev/bus/usb/001/006 crw-rw-r-- 1 root root 189, 128 Oct 21 07:12 /dev/bus/usb/002/001 crw-rw-r-- 1 root root 189, 129 Oct 21 07:12 /dev/bus/usb/002/002 crw-rw-r-- 1 root root 189, 130 Oct 21 07:12 /dev/bus/usb/002/003 crw-rw---- 1 root lp 180, 0 Oct 21 18:14 /dev/usb/lp0 usb_printerid /dev/usb/lp0 GET_DEVICE_ID string: MFG:EPSON;CMD:ESCPL2,BDC,D4,D4PX,ESCPR2;MDL:WF-7520 Series;CLS:PRINTER;DES:EPSON WF-7520 Series;CID:EpsonRGB;FID:FXA,DPA,WFA,ETA,AFA,DAA; lpinfo -v network https network http network ipp14 network ipps network lpd network socket direct scsi network ipp network smb direct usb://EPSON/WF-7520%20Series?serial=4E4B4C593030383003&interface=1 direct parallel:/dev/lp0 network beh direct hp network dnssd://EPSON%20WF-7520%20Series._printer._tcp.local/ network dnssd://EPSON%20WF-7520%20Series._pdl-datastream._tcp.local/ network dnssd://EPSON%20WF-7520%20Series._ipp._tcp.local/ direct hpfax network lpd://192.168.2.102:515/PASSTHRU