Hello,
according to the proposal of deano_ferrari i deattached the USB cable of the MFP and some seconds later I attached the device again.
After deattaching it, I found this information in
/var/log/messages
015-01-17T14:54:33.633714+01:00 celeron kernel: [16992.190408] usb 1-2.3: USB disconnect, device number 6
2015-01-17T14:54:33.633746+01:00 celeron kernel: [16992.191094] usblp0: removed
2015-01-17T14:54:33.644521+01:00 celeron udev-configure-printer: remove /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.3
2015-01-17T14:54:33.650378+01:00 celeron udev-configure-printer: URI of detected printer: usb://Dell/Laser%20MFP%201815, normalized: dell laser mfp 1815
2015-01-17T14:54:33.651431+01:00 celeron udev-configure-printer: URI of print queue: usb://Dell/Laser%20MFP%201815, normalized: dell laser mfp 1815
2015-01-17T14:54:33.652509+01:00 celeron udev-configure-printer: Queue ipp://localhost:631/printers/delllasermfp1815 has matching device URI
2015-01-17T14:54:33.655707+01:00 celeron udev-configure-printer: Disabled printer ipp://localhost:631/printers/delllasermfp1815 as the corresponding device was unplugged or turned off
2015-01-17T14:54:33.657451+01:00 celeron systemd[4682]: Service printer.target is not needed anymore. Stopping.
2015-01-17T14:54:33.658483+01:00 celeron systemd[4682]: Stopping Printer.
2015-01-17T14:54:33.659514+01:00 celeron systemd[4082]: Service printer.target is not needed anymore. Stopping.
2015-01-17T14:54:33.660499+01:00 celeron systemd[4682]: Stopped target Printer.
2015-01-17T14:54:33.661396+01:00 celeron systemd[4082]: Stopping Printer.
2015-01-17T14:54:33.662261+01:00 celeron systemd[4082]: Stopped target Printer.
2015-01-17T14:54:33.663080+01:00 celeron systemd[1]: Service printer.target is not needed anymore. Stopping.
2015-01-17T14:54:33.663791+01:00 celeron systemd[1]: Stopping Printer.
2015-01-17T14:54:33.664529+01:00 celeron systemd[1]: Stopped target Printer.
After reattaching the MFP again I got this messages:
2015-01-17T14:54:47.807695+01:00 celeron kernel: [17006.365011] usb 1-2: reset high-speed USB device number 3 using xhci_hcd
2015-01-17T14:54:47.818733+01:00 celeron kernel: [17006.376239] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff880255bc79c0
2015-01-17T14:54:48.087752+01:00 celeron kernel: [17006.645357] usb 1-2.3: new high-speed USB device number 7 using xhci_hcd
2015-01-17T14:54:48.100740+01:00 celeron kernel: [17006.657630] usb 1-2.3: New USB device found, idVendor=413c, idProduct=5124
2015-01-17T14:54:48.100770+01:00 celeron kernel: [17006.657640] usb 1-2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
2015-01-17T14:54:48.100775+01:00 celeron kernel: [17006.657646] usb 1-2.3: Product: DELL Laser MFP 1815
2015-01-17T14:54:48.100778+01:00 celeron kernel: [17006.657652] usb 1-2.3: Manufacturer: Dell
2015-01-17T14:54:48.100780+01:00 celeron kernel: [17006.657656] usb 1-2.3: SerialNumber: 2619D91.........
2015-01-17T14:54:48.100783+01:00 celeron kernel: [17006.658292] usb 1-2.3: ep 0x3 - rounding interval to 8 microframes, ep desc says 10 microframes
2015-01-17T14:54:48.100785+01:00 celeron kernel: [17006.658306] usb 1-2.3: ep 0x84 - rounding interval to 8 microframes, ep desc says 10 microframes
2015-01-17T14:54:48.100788+01:00 celeron kernel: [17006.658315] usb 1-2.3: ep 0x1 - rounding interval to 8 microframes, ep desc says 10 microframes
2015-01-17T14:54:48.100790+01:00 celeron kernel: [17006.658324] usb 1-2.3: ep 0x82 - rounding interval to 8 microframes, ep desc says 10 microframes
2015-01-17T14:54:48.101926+01:00 celeron kernel: [17006.659336] usb 1-2.3: ep 0x1 - rounding interval to 8 microframes, ep desc says 10 microframes
2015-01-17T14:54:48.101952+01:00 celeron kernel: [17006.659355] usb 1-2.3: ep 0x82 - rounding interval to 8 microframes, ep desc says 10 microframes
2015-01-17T14:54:48.103152+01:00 celeron kernel: [17006.660306] usblp 1-2.3:1.1: usblp0: USB Bidirectional printer dev 7 if 1 alt 0 proto 2 vid 0x413C pid 0x5124
2015-01-17T14:54:48.122352+01:00 celeron systemd[4682]: Starting Printer.
2015-01-17T14:54:48.123555+01:00 celeron systemd[4682]: Reached target Printer.
2015-01-17T14:54:48.124745+01:00 celeron systemd[4082]: Starting Printer.
2015-01-17T14:54:48.128579+01:00 celeron systemd[4082]: Reached target Printer.
2015-01-17T14:54:48.130995+01:00 celeron systemd[1]: Starting Printer.
2015-01-17T14:54:48.132135+01:00 celeron systemd[1]: Reached target Printer.
2015-01-17T14:54:48.133151+01:00 celeron systemd[1]: Starting Configure Plugged-In Printer...
2015-01-17T14:54:48.134019+01:00 celeron systemd[1]: Started Configure Plugged-In Printer.
2015-01-17T14:54:48.134993+01:00 celeron udev-configure-printer: add usb-001-007
2015-01-17T14:54:48.174026+01:00 celeron udev-configure-printer: device devpath is /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.3
2015-01-17T14:54:48.175046+01:00 celeron udev-configure-printer: MFG:Dell MDL:Laser MFP 1815 SERN:- serial:2619D91.........
2015-01-17T14:54:49.238381+01:00 celeron hp[7515]: io/hpmud/pp.c 627: unable to read device-id ret=-1
2015-01-17T14:54:49.396522+01:00 celeron python: io/hpmud/pp.c 627: unable to read device-id ret=-1
2015-01-17T14:54:49.420021+01:00 celeron udev-configure-printer: URI matches without serial number: usb://Dell/Laser%20MFP%201815
2015-01-17T14:54:49.420738+01:00 celeron udev-configure-printer: No serial number URI matches so using those without
2015-01-17T14:54:49.421323+01:00 celeron udev-configure-printer: URI of detected printer: usb://Dell/Laser%20MFP%201815, normalized: dell laser mfp 1815
2015-01-17T14:54:49.421942+01:00 celeron udev-configure-printer: URI of print queue: usb://Dell/Laser%20MFP%201815, normalized: dell laser mfp 1815
2015-01-17T14:54:49.423282+01:00 celeron udev-configure-printer: Queue ipp://localhost:631/printers/delllasermfp1815 has matching device URI
2015-01-17T14:54:49.424125+01:00 celeron udev-configure-printer: Re-enabled printer ipp://localhost:631/printers/delllasermfp1815
After attaching dhe device again I tried the command:
scanimage -L
to see, if the scanner is there. And yes it was there, I got
device `xerox_mfp:libusb:001:007' is a Dell Dell Laser MFP 1815 multi-function peripheral
Now trying to scan something was not working again because meanwhile (within seconds) the scanner disappeared agein. Invoking
scanimage -d xerox_mfp:libusb:001:007 > /tmp/image.prm
returned the error
scanimage: open of device xerox_mfp:libusb:001:007 failed: Invalid argument
Now, I checked if the scanner really disappeared and yes, unfortunatelly this was the case:
Running
scanimage -L
returned
No scanners were identified. If you were expecting something different,
check that the scanner is plugged in, turned on and detected by the
sane-find-scanner tool (if appropriate). Please read the documentation
which came with this software (README, FAQ, manpages).
The output for all these actionfrom
var/log/messages
is here:
2015-01-17T15:01:09.879685+01:00 celeron kernel: [17388.436602] usb 1-2.3: usbfs: interface 1 claimed by usblp while 'scanimage' sets config #1
2015-01-17T15:01:28.952049+01:00 celeron kernel: [17407.509099] usb 1-2.3: usbfs: interface 1 claimed by usblp while 'scanimage' sets config #1
2015-01-17T15:01:36.767696+01:00 celeron kernel: [17415.324555] usb 1-2.3: usbfs: interface 1 claimed by usblp while 'scanimage' sets config #1
I can not find anything strange in the log file. On the other hand it still does not work. Dou You see something?
Thank You for suggestions
honterus0