uname -a Linux Desktop 3.16.7-031607-generic #201410301735 SMP Thu Oct 30 17:37:43 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux First time I tested it, it successfully printed 3 jobs and than disconnected. I turned off and on the printer and checked again. This time it successfully printed 5 jobs without disconnection between and after. $ uname -a Linux Desktop 3.18.21-031821-generic #201509020527 SMP Wed Sep 2 05:29:06 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux The issue exist here too: successfully printed first and second jobs but then it disconnected. Here is output: $ tail -f /var/log/syslog Oct 3 15:55:37 Desktop colord: Profile added: icc-0383c34650771ce95ef93fe916867725 Oct 3 15:55:37 Desktop colord: Profile added: icc-6ad6d63767ce0393245528ada92f1cb2 Oct 3 15:55:37 Desktop colord: Profile added: icc-c227f46f246694ba9971f270cb61a0c1 Oct 3 15:55:37 Desktop colord: Profile added: icc-b0701c2ccf059287d0b067464df8bda9 Oct 3 15:55:37 Desktop colord: Profile added: icc-ea421e3a65cfa796e2732ce36086e327 Oct 3 15:55:37 Desktop colord: Profile added: icc-353a6bcabda00f04b6988f89126ce6f5 Oct 3 15:55:37 Desktop colord: Profile added: icc-654b99c87e67edb1c1cfb0dcb7fa9d04 Oct 3 15:55:37 Desktop colord: Profile added: Samsung-ML-1250-Gray.. Oct 3 15:55:37 Desktop colord: Device added: cups-Samsung-ML-1250 Oct 3 15:55:57 Desktop blueman-mechanism: Exiting Oct 3 15:59:01 Desktop kernel: [ 260.620350] usblp0: removed Oct 3 15:59:12 Desktop kernel: [ 271.696027] usb 2-1: reset full-speed USB device number 2 using uhci_hcd Oct 3 15:59:12 Desktop kernel: [ 271.816062] usb 2-1: device descriptor read/64, error -71 Oct 3 15:59:12 Desktop kernel: [ 272.040045] usb 2-1: device descriptor read/64, error -71 Oct 3 15:59:12 Desktop kernel: [ 272.256049] usb 2-1: reset full-speed USB device number 2 using uhci_hcd Oct 3 15:59:12 Desktop kernel: [ 272.376056] usb 2-1: device descriptor read/64, error -71 Oct 3 15:59:13 Desktop kernel: [ 272.600047] usb 2-1: device descriptor read/64, error -71 Oct 3 15:59:13 Desktop kernel: [ 272.816074] usb 2-1: reset full-speed USB device number 2 using uhci_hcd Oct 3 15:59:13 Desktop kernel: [ 273.228042] usb 2-1: device not accepting address 2, error -71 Oct 3 15:59:13 Desktop kernel: [ 273.340053] usb 2-1: reset full-speed USB device number 2 using uhci_hcd Oct 3 15:59:14 Desktop kernel: [ 273.748058] usb 2-1: device not accepting address 2, error -71 Oct 3 15:59:14 Desktop kernel: [ 273.748254] usb 2-1: USB disconnect, device number 2 Oct 3 15:59:14 Desktop udev-configure-printer: remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 15:59:14 Desktop kernel: [ 273.860050] usb 2-1: new full-speed USB device number 3 using uhci_hcd Oct 3 15:59:14 Desktop kernel: [ 274.048361] usb 2-1: New USB device found, idVendor=04e8, idProduct=300e Oct 3 15:59:14 Desktop kernel: [ 274.048369] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Oct 3 15:59:14 Desktop kernel: [ 274.048372] usb 2-1: Product: Samsung Laser Printer ML-1250 Oct 3 15:59:14 Desktop kernel: [ 274.048375] usb 2-1: Manufacturer: Samsung Electronics Co., Ltd. Oct 3 15:59:14 Desktop kernel: [ 274.056180] usblp 2-1:1.0: usblp0: USB Bidirectional printer dev 3 if 0 alt 0 proto 2 vid 0x04E8 pid 0x300E Oct 3 15:59:14 Desktop mtp-probe: checking bus 2, device 3: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1" Oct 3 15:59:14 Desktop mtp-probe: bus: 2, device: 3 was not an MTP device Oct 3 15:59:14 Desktop udev-configure-printer: add /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 15:59:14 Desktop udev-configure-printer: device devpath is /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 15:59:14 Desktop udev-configure-printer: MFG:Samsung MDL:ML-1250 SERN:- serial:- Oct 3 15:59:15 Desktop kernel: [ 275.235484] usblp0: removed Oct 3 15:59:15 Desktop kernel: [ 275.248268] usblp 2-1:1.0: usblp0: USB Bidirectional printer dev 3 if 0 alt 0 proto 2 vid 0x04E8 pid 0x300E Oct 3 15:59:15 Desktop hp[1918]: io/hpmud/pp.c 627: unable to read device-id ret=-1 Oct 3 15:59:16 Desktop python: io/hpmud/pp.c 627: unable to read device-id ret=-1 Oct 3 15:59:16 Desktop udev-configure-printer: URI matches without serial number: usb://Samsung/ML-1250 Oct 3 15:59:16 Desktop udev-configure-printer: No serial number URI matches so using those without Oct 3 15:59:16 Desktop udev-configure-printer: URI of detected printer: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 15:59:16 Desktop udev-configure-printer: URI of print queue: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 15:59:16 Desktop udev-configure-printer: Queue ipp://localhost:631/printers/Samsung-ML-1250 has matching device URI Oct 3 15:59:44 Desktop kernel: [ 304.315894] usblp0: removed Oct 3 15:59:56 Desktop kernel: [ 315.972069] usb 2-1: reset full-speed USB device number 3 using uhci_hcd Oct 3 15:59:56 Desktop kernel: [ 316.092058] usb 2-1: device descriptor read/64, error -71 Oct 3 15:59:56 Desktop kernel: [ 316.316057] usb 2-1: device descriptor read/64, error -71 Oct 3 15:59:57 Desktop kernel: [ 316.532059] usb 2-1: reset full-speed USB device number 3 using uhci_hcd Oct 3 15:59:57 Desktop kernel: [ 316.652048] usb 2-1: device descriptor read/64, error -71 Oct 3 15:59:57 Desktop kernel: [ 316.876035] usb 2-1: device descriptor read/64, error -71 Oct 3 15:59:57 Desktop kernel: [ 317.092059] usb 2-1: reset full-speed USB device number 3 using uhci_hcd Oct 3 15:59:58 Desktop kernel: [ 317.500084] usb 2-1: device not accepting address 3, error -71 Oct 3 15:59:58 Desktop kernel: [ 317.612041] usb 2-1: reset full-speed USB device number 3 using uhci_hcd Oct 3 15:59:58 Desktop kernel: [ 318.020046] usb 2-1: device not accepting address 3, error -71 Oct 3 15:59:58 Desktop kernel: [ 318.020251] usb 2-1: USB disconnect, device number 3 Oct 3 15:59:58 Desktop udev-configure-printer: remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 15:59:58 Desktop udev-configure-printer: URI of detected printer: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 15:59:58 Desktop udev-configure-printer: URI of print queue: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 15:59:58 Desktop udev-configure-printer: Queue ipp://localhost:631/printers/Samsung-ML-1250 has matching device URI Oct 3 15:59:58 Desktop udev-configure-printer: Disabled printer ipp://localhost:631/printers/Samsung-ML-1250 as the corresponding device was unplugged or turned off Oct 3 15:59:58 Desktop kernel: [ 318.132048] usb 2-1: new full-speed USB device number 4 using uhci_hcd Oct 3 15:59:58 Desktop kernel: [ 318.252041] usb 2-1: device descriptor read/64, error -71 Oct 3 15:59:59 Desktop kernel: [ 318.476055] usb 2-1: device descriptor read/64, error -71 Oct 3 15:59:59 Desktop kernel: [ 318.692022] usb 2-1: new full-speed USB device number 5 using uhci_hcd Oct 3 15:59:59 Desktop kernel: [ 318.812042] usb 2-1: device descriptor read/64, error -71 Oct 3 15:59:59 Desktop kernel: [ 319.036042] usb 2-1: device descriptor read/64, error -71 Oct 3 15:59:59 Desktop kernel: [ 319.252046] usb 2-1: new full-speed USB device number 6 using uhci_hcd Oct 3 16:00:00 Desktop kernel: [ 319.660068] usb 2-1: device not accepting address 6, error -71 Oct 3 16:00:00 Desktop kernel: [ 319.772038] usb 2-1: new full-speed USB device number 7 using uhci_hcd Oct 3 16:00:00 Desktop kernel: [ 320.180074] usb 2-1: device not accepting address 7, error -71 Oct 3 16:00:00 Desktop kernel: [ 320.180122] usb usb2-port1: unable to enumerate USB device $ uname -a Linux Desktop 3.19.0-30-generic #33~14.04.1-Ubuntu SMP Tue Sep 22 09:27:00 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux lsusb shows printer is connected but it's even not printed first job. Here is output: $ tail -f /var/log/syslog Oct 3 16:07:23 Desktop kernel: [ 149.061541] audit: type=1400 audit(1443877643.756:34): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1828 comm="apparmor_parser" Oct 3 16:07:23 Desktop kernel: [ 149.061552] audit: type=1400 audit(1443877643.756:35): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=1828 comm="apparmor_parser" Oct 3 16:07:23 Desktop kernel: [ 149.062064] audit: type=1400 audit(1443877643.756:36): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1828 comm="apparmor_parser" Oct 3 16:07:23 Desktop kernel: [ 149.062079] audit: type=1400 audit(1443877643.756:37): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=1828 comm="apparmor_parser" Oct 3 16:07:23 Desktop kernel: [ 149.062351] audit: type=1400 audit(1443877643.756:38): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=1828 comm="apparmor_parser" Oct 3 16:07:23 Desktop kernel: [ 149.084231] audit: type=1400 audit(1443877643.780:39): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/bin/evince" pid=1829 comm="apparmor_parser" Oct 3 16:07:24 Desktop anacron[1882]: Anacron 2.3 started on 2015-10-03 Oct 3 16:07:24 Desktop anacron[1882]: Normal exit (0 jobs run) Oct 3 16:07:24 Desktop /usr/sbin/irqbalance: Balancing is ineffective on systems with a single cache domain. Shutting down Oct 3 16:07:24 Desktop kernel: [ 149.912346] init: plymouth-stop pre-start process (1955) terminated with status 1 I turned it off/on. After this it printed 2 jobs and also disconnected: Oct 3 16:14:52 Desktop kernel: [ 598.080163] usb 2-1: USB disconnect, device number 2 Oct 3 16:14:52 Desktop kernel: [ 598.080410] usblp0: removed Oct 3 16:14:52 Desktop udev-configure-printer: remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 16:15:00 Desktop kernel: [ 605.916020] usb 2-1: new full-speed USB device number 3 using uhci_hcd Oct 3 16:15:00 Desktop kernel: [ 606.104199] usb 2-1: New USB device found, idVendor=04e8, idProduct=300e Oct 3 16:15:00 Desktop kernel: [ 606.104206] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Oct 3 16:15:00 Desktop kernel: [ 606.104210] usb 2-1: Product: Samsung Laser Printer ML-1250 Oct 3 16:15:00 Desktop kernel: [ 606.104213] usb 2-1: Manufacturer: Samsung Electronics Co., Ltd. Oct 3 16:15:00 Desktop kernel: [ 606.111462] usblp 2-1:1.0: usblp0: USB Bidirectional printer dev 3 if 0 alt 0 proto 2 vid 0x04E8 pid 0x300E Oct 3 16:15:00 Desktop mtp-probe: checking bus 2, device 3: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1" Oct 3 16:15:00 Desktop mtp-probe: bus: 2, device: 3 was not an MTP device Oct 3 16:15:00 Desktop udev-configure-printer: add /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 16:15:00 Desktop udev-configure-printer: device devpath is /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 16:15:00 Desktop udev-configure-printer: MFG:Samsung MDL:ML-1250 SERN:- serial:- Oct 3 16:15:02 Desktop kernel: [ 607.431427] usblp0: removed Oct 3 16:15:02 Desktop kernel: [ 607.442350] usblp 2-1:1.0: usblp0: USB Bidirectional printer dev 3 if 0 alt 0 proto 2 vid 0x04E8 pid 0x300E Oct 3 16:15:02 Desktop hp[2067]: io/hpmud/pp.c 627: unable to read device-id ret=-1 Oct 3 16:15:02 Desktop python: io/hpmud/pp.c 627: unable to read device-id ret=-1 Oct 3 16:15:02 Desktop udev-configure-printer: URI matches without serial number: usb://Samsung/ML-1250 Oct 3 16:15:02 Desktop udev-configure-printer: No serial number URI matches so using those without Oct 3 16:15:02 Desktop udev-configure-printer: URI of detected printer: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 16:15:02 Desktop udev-configure-printer: URI of print queue: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 16:15:02 Desktop udev-configure-printer: Queue ipp://localhost:631/printers/Samsung-ML-1250 has matching device URI Oct 3 16:15:02 Desktop udev-configure-printer: Re-enabled printer ipp://localhost:631/printers/Samsung-ML-1250 Oct 3 16:15:44 Desktop kernel: [ 649.413134] usblp0: removed Oct 3 16:15:56 Desktop kernel: [ 661.948056] usb 2-1: reset full-speed USB device number 3 using uhci_hcd Oct 3 16:15:56 Desktop kernel: [ 662.068030] usb 2-1: device descriptor read/64, error -71 Oct 3 16:15:56 Desktop kernel: [ 662.292056] usb 2-1: device descriptor read/64, error -71 Oct 3 16:15:57 Desktop kernel: [ 662.508047] usb 2-1: reset full-speed USB device number 3 using uhci_hcd Oct 3 16:15:57 Desktop kernel: [ 662.628057] usb 2-1: device descriptor read/64, error -71 Oct 3 16:15:57 Desktop kernel: [ 662.856039] usb 2-1: device descriptor read/64, error -71 Oct 3 16:15:57 Desktop kernel: [ 663.072037] usb 2-1: reset full-speed USB device number 3 using uhci_hcd Oct 3 16:15:58 Desktop kernel: [ 663.480070] usb 2-1: device not accepting address 3, error -71 Oct 3 16:15:58 Desktop kernel: [ 663.592046] usb 2-1: reset full-speed USB device number 3 using uhci_hcd Oct 3 16:15:58 Desktop kernel: [ 664.000046] usb 2-1: device not accepting address 3, error -71 Oct 3 16:15:58 Desktop kernel: [ 664.000267] usb 2-1: USB disconnect, device number 3 Oct 3 16:15:58 Desktop udev-configure-printer: remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 16:15:58 Desktop udev-configure-printer: URI of detected printer: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 16:15:58 Desktop udev-configure-printer: URI of print queue: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 16:15:58 Desktop udev-configure-printer: Queue ipp://localhost:631/printers/Samsung-ML-1250 has matching device URI Oct 3 16:15:58 Desktop udev-configure-printer: Disabled printer ipp://localhost:631/printers/Samsung-ML-1250 as the corresponding device was unplugged or turned off Oct 3 16:15:58 Desktop kernel: [ 664.112044] usb 2-1: new full-speed USB device number 4 using uhci_hcd Oct 3 16:15:59 Desktop kernel: [ 664.300593] usb 2-1: New USB device found, idVendor=04e8, idProduct=300e Oct 3 16:15:59 Desktop kernel: [ 664.300601] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Oct 3 16:15:59 Desktop kernel: [ 664.300605] usb 2-1: Product: Samsung Laser Printer ML-1250 Oct 3 16:15:59 Desktop kernel: [ 664.300608] usb 2-1: Manufacturer: Samsung Electronics Co., Ltd. Oct 3 16:15:59 Desktop kernel: [ 664.307840] usblp 2-1:1.0: usblp0: USB Bidirectional printer dev 4 if 0 alt 0 proto 2 vid 0x04E8 pid 0x300E Oct 3 16:15:59 Desktop mtp-probe: checking bus 2, device 4: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1" Oct 3 16:15:59 Desktop mtp-probe: bus: 2, device: 4 was not an MTP device Oct 3 16:15:59 Desktop udev-configure-printer: add /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 16:15:59 Desktop udev-configure-printer: device devpath is /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 16:15:59 Desktop udev-configure-printer: MFG:Samsung MDL:ML-1250 SERN:- serial:- Oct 3 16:16:00 Desktop kernel: [ 665.437252] usblp0: removed Oct 3 16:16:00 Desktop kernel: [ 665.448700] usblp 2-1:1.0: usblp0: USB Bidirectional printer dev 4 if 0 alt 0 proto 2 vid 0x04E8 pid 0x300E Oct 3 16:16:00 Desktop hp[2111]: io/hpmud/pp.c 627: unable to read device-id ret=-1 Oct 3 16:16:00 Desktop python: io/hpmud/pp.c 627: unable to read device-id ret=-1 Oct 3 16:16:00 Desktop udev-configure-printer: URI matches without serial number: usb://Samsung/ML-1250 Oct 3 16:16:00 Desktop udev-configure-printer: No serial number URI matches so using those without Oct 3 16:16:00 Desktop udev-configure-printer: URI of detected printer: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 16:16:00 Desktop udev-configure-printer: URI of print queue: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 16:16:00 Desktop udev-configure-printer: Queue ipp://localhost:631/printers/Samsung-ML-1250 has matching device URI Oct 3 16:16:00 Desktop udev-configure-printer: Re-enabled printer ipp://localhost:631/printers/Samsung-ML-1250 Oct 3 16:16:24 Desktop kernel: [ 689.751370] usblp0: removed Oct 3 16:16:34 Desktop kernel: [ 699.732038] usb 2-1: reset full-speed USB device number 4 using uhci_hcd Oct 3 16:16:34 Desktop kernel: [ 699.852038] usb 2-1: device descriptor read/64, error -71 Oct 3 16:16:34 Desktop kernel: [ 700.076058] usb 2-1: device descriptor read/64, error -71 Oct 3 16:16:34 Desktop kernel: [ 700.292046] usb 2-1: reset full-speed USB device number 4 using uhci_hcd Oct 3 16:16:35 Desktop kernel: [ 700.412058] usb 2-1: device descriptor read/64, error -71 Oct 3 16:16:35 Desktop kernel: [ 700.636052] usb 2-1: device descriptor read/64, error -71 Oct 3 16:16:35 Desktop kernel: [ 700.852047] usb 2-1: reset full-speed USB device number 4 using uhci_hcd Oct 3 16:16:35 Desktop kernel: [ 701.260034] usb 2-1: device not accepting address 4, error -71 Oct 3 16:16:36 Desktop kernel: [ 701.372065] usb 2-1: reset full-speed USB device number 4 using uhci_hcd Oct 3 16:16:36 Desktop kernel: [ 701.784044] usb 2-1: device not accepting address 4, error -71 Oct 3 16:16:36 Desktop kernel: [ 701.784274] usb 2-1: USB disconnect, device number 4 Oct 3 16:16:36 Desktop udev-configure-printer: remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 16:16:36 Desktop udev-configure-printer: URI of detected printer: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 16:16:36 Desktop udev-configure-printer: URI of print queue: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 16:16:36 Desktop udev-configure-printer: Queue ipp://localhost:631/printers/Samsung-ML-1250 has matching device URI Oct 3 16:16:36 Desktop udev-configure-printer: Disabled printer ipp://localhost:631/printers/Samsung-ML-1250 as the corresponding device was unplugged or turned off Oct 3 16:16:36 Desktop kernel: [ 701.896051] usb 2-1: new full-speed USB device number 5 using uhci_hcd Oct 3 16:16:36 Desktop kernel: [ 702.016045] usb 2-1: device descriptor read/64, error -71 Oct 3 16:16:36 Desktop kernel: [ 702.240054] usb 2-1: device descriptor read/64, error -71 Oct 3 16:16:37 Desktop kernel: [ 702.456045] usb 2-1: new full-speed USB device number 6 using uhci_hcd Oct 3 16:16:37 Desktop kernel: [ 702.576031] usb 2-1: device descriptor read/64, error -71 Oct 3 16:16:37 Desktop kernel: [ 702.800052] usb 2-1: device descriptor read/64, error -71 Oct 3 16:16:37 Desktop kernel: [ 703.016041] usb 2-1: new full-speed USB device number 7 using uhci_hcd Oct 3 16:16:38 Desktop kernel: [ 703.424129] usb 2-1: device not accepting address 7, error -71 Oct 3 16:16:38 Desktop kernel: [ 703.536062] usb 2-1: new full-speed USB device number 8 using uhci_hcd Oct 3 16:16:38 Desktop kernel: [ 703.944085] usb 2-1: device not accepting address 8, error -71 Oct 3 16:16:38 Desktop kernel: [ 703.944126] usb usb2-port1: unable to enumerate USB device Oct 3 16:17:01 Desktop CRON[2150]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) $ uname -a Linux Desktop 4.3.0-040300rc3-generic #201509271225 SMP Sun Sep 27 12:26:47 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux I booted machine with this kernel but I didn't turned off/on the printer. So, as was with kernel 3.19, printed didn't done even first job although lsusb saying it is connected: $ lsusb 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 002: ID 04e8:300e Samsung Electronics Co., Ltd Laser Printer Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub But syslog output didn't changed from what it was before and after I sent first job to print: $ tail -f /var/log/syslog Oct 3 16:21:49 Desktop dbus[516]: [system] Successfully activated service 'org.freedesktop.UDisks2' Oct 3 16:21:49 Desktop udisksd[1530]: Acquired the name org.freedesktop.UDisks2 on the system message bus Oct 3 16:21:55 Desktop dbus[516]: [system] Activating service name='org.blueman.Mechanism' (using servicehelper) Oct 3 16:21:56 Desktop blueman-mechanism: Starting blueman-mechanism Oct 3 16:21:56 Desktop dbus[516]: [system] Successfully activated service 'org.blueman.Mechanism' Oct 3 16:21:56 Desktop blueman-mechanism: loading Config Oct 3 16:21:56 Desktop blueman-mechanism: loading Network Oct 3 16:21:56 Desktop blueman-mechanism: loading Ppp Oct 3 16:21:56 Desktop blueman-mechanism: loading RfKill Oct 3 16:22:26 Desktop blueman-mechanism: Exiting Again I turned off/on the printer and tried to print. This time it printed only first job and disconnected again: Oct 3 16:31:11 Desktop kernel: [ 663.552110] usb 2-1: USB disconnect, device number 2 Oct 3 16:31:11 Desktop kernel: [ 663.552349] usblp0: removed Oct 3 16:31:11 Desktop udev-configure-printer: remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 16:31:18 Desktop kernel: [ 670.856019] usb 2-1: new full-speed USB device number 3 using uhci_hcd Oct 3 16:31:18 Desktop kernel: [ 671.044982] usb 2-1: New USB device found, idVendor=04e8, idProduct=300e Oct 3 16:31:18 Desktop kernel: [ 671.044990] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Oct 3 16:31:18 Desktop kernel: [ 671.044994] usb 2-1: Product: Samsung Laser Printer ML-1250 Oct 3 16:31:18 Desktop kernel: [ 671.044997] usb 2-1: Manufacturer: Samsung Electronics Co., Ltd. Oct 3 16:31:18 Desktop kernel: [ 671.054046] usblp 2-1:1.0: usblp0: USB Bidirectional printer dev 3 if 0 alt 0 proto 2 vid 0x04E8 pid 0x300E Oct 3 16:31:18 Desktop mtp-probe: checking bus 2, device 3: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1" Oct 3 16:31:18 Desktop mtp-probe: bus: 2, device: 3 was not an MTP device Oct 3 16:31:18 Desktop udev-configure-printer: add /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 16:31:18 Desktop udev-configure-printer: device devpath is /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 16:31:18 Desktop udev-configure-printer: MFG:Samsung MDL:ML-1250 SERN:- serial:- Oct 3 16:31:19 Desktop kernel: [ 672.304425] usblp0: removed Oct 3 16:31:19 Desktop kernel: [ 672.312051] usblp 2-1:1.0: usblp0: USB Bidirectional printer dev 3 if 0 alt 0 proto 2 vid 0x04E8 pid 0x300E Oct 3 16:31:19 Desktop hp[1918]: io/hpmud/pp.c 627: unable to read device-id ret=-1 Oct 3 16:31:20 Desktop python: io/hpmud/pp.c 627: unable to read device-id ret=-1 Oct 3 16:31:20 Desktop udev-configure-printer: URI matches without serial number: usb://Samsung/ML-1250 Oct 3 16:31:20 Desktop udev-configure-printer: No serial number URI matches so using those without Oct 3 16:31:20 Desktop udev-configure-printer: URI of detected printer: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 16:31:20 Desktop udev-configure-printer: URI of print queue: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 16:31:20 Desktop udev-configure-printer: Queue ipp://localhost:631/printers/Samsung-ML-1250 has matching device URI Oct 3 16:31:20 Desktop udev-configure-printer: Re-enabled printer ipp://localhost:631/printers/Samsung-ML-1250 Oct 3 16:32:30 Desktop kernel: [ 742.539217] usblp0: removed Oct 3 16:32:40 Desktop kernel: [ 753.188045] usb 2-1: reset full-speed USB device number 3 using uhci_hcd Oct 3 16:32:40 Desktop kernel: [ 753.308027] usb 2-1: device descriptor read/64, error -71 Oct 3 16:32:41 Desktop kernel: [ 753.532042] usb 2-1: device descriptor read/64, error -71 Oct 3 16:32:41 Desktop kernel: [ 753.748035] usb 2-1: reset full-speed USB device number 3 using uhci_hcd Oct 3 16:32:41 Desktop kernel: [ 753.868023] usb 2-1: device descriptor read/64, error -71 Oct 3 16:32:41 Desktop kernel: [ 754.092021] usb 2-1: device descriptor read/64, error -71 Oct 3 16:32:41 Desktop kernel: [ 754.308037] usb 2-1: reset full-speed USB device number 3 using uhci_hcd Oct 3 16:32:42 Desktop kernel: [ 754.720025] usb 2-1: device not accepting address 3, error -71 Oct 3 16:32:42 Desktop kernel: [ 754.832027] usb 2-1: reset full-speed USB device number 3 using uhci_hcd Oct 3 16:32:42 Desktop kernel: [ 755.240021] usb 2-1: device not accepting address 3, error -71 Oct 3 16:32:42 Desktop kernel: [ 755.240103] usb 2-1: USB disconnect, device number 3 Oct 3 16:32:42 Desktop udev-configure-printer: remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1 Oct 3 16:32:42 Desktop udev-configure-printer: URI of detected printer: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 16:32:42 Desktop udev-configure-printer: URI of print queue: usb://Samsung/ML-1250, normalized: samsung ml 1250 Oct 3 16:32:42 Desktop udev-configure-printer: Queue ipp://localhost:631/printers/Samsung-ML-1250 has matching device URI Oct 3 16:32:42 Desktop udev-configure-printer: Disabled printer ipp://localhost:631/printers/Samsung-ML-1250 as the corresponding device was unplugged or turned off Oct 3 16:32:42 Desktop kernel: [ 755.352035] usb 2-1: new full-speed USB device number 4 using uhci_hcd Oct 3 16:32:43 Desktop kernel: [ 755.472031] usb 2-1: device descriptor read/64, error -71 Oct 3 16:32:43 Desktop kernel: [ 755.696022] usb 2-1: device descriptor read/64, error -71 Oct 3 16:32:43 Desktop kernel: [ 755.912030] usb 2-1: new full-speed USB device number 5 using uhci_hcd Oct 3 16:32:43 Desktop kernel: [ 756.032042] usb 2-1: device descriptor read/64, error -71 Oct 3 16:32:43 Desktop kernel: [ 756.256039] usb 2-1: device descriptor read/64, error -71 Oct 3 16:32:44 Desktop kernel: [ 756.472033] usb 2-1: new full-speed USB device number 6 using uhci_hcd Oct 3 16:32:44 Desktop kernel: [ 756.880023] usb 2-1: device not accepting address 6, error -71 Oct 3 16:32:44 Desktop kernel: [ 756.992034] usb 2-1: new full-speed USB device number 7 using uhci_hcd Oct 3 16:32:44 Desktop kernel: [ 757.400041] usb 2-1: device not accepting address 7, error -71 Oct 3 16:32:44 Desktop kernel: [ 757.400089] usb usb2-port1: unable to enumerate USB device Conclusion. I don't understand what's happening with this printer. Turning off USB-reattaching helps but not too much. No we can print mo jobs until printer will disconnect. Could the issue be in printer hardware? Some time ago it was broken and then repeared at the service center. So the only idea I have is to check it with windows computer. Any other suggestions? Thanks. P.S. So using /usr/share/cups/usb/org.cups.usb-quirks now is not necessary as I understood.