Comment 0 for bug 1001028

Ubuntu 12.04 64 bit (also 32 bit is affected)
Zebra LP 2844-Z USB printer - connected with a generic "raw queue" driver.

usblp0 appears to disconnect after every print job and then automatically reconnect after 8 seconds. The next job to the printer won't print until it is reconnected. This is a problem for us in a high volume printing scenario.

Here are messages from syslog:
May 17 16:47:17 mlcx500 kernel: [25464.991868] usblp0: removed
May 17 16:47:25 mlcx500 kernel: [25473.131745] usblp0: USB Bidirectional printer dev 5 if 0 alt 0 proto 2 vid 0x0A5F pid 0x0027
May 17 16:47:25 mlcx500 udev-configure-printer: add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/usb/lp0
May 17 16:47:25 mlcx500 udev-configure-printer: device devpath is /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2
May 17 16:47:25 mlcx500 udev-configure-printer: Device already handled

Note the 8 second pause between the first and second messages.

Not sure where the disconnect is coming from.

It doesn't appear to be hardware related as I have the problem with various combinations of printer and computer.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: cups 1.5.2-9ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Thu May 17 17:47:22 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
Lpstat:
 device for Officejet-6300-series: dnssd://Officejet%206300%20series%20%5B75F808%5D._pdl-datastream._tcp.local/
 device for z6: usb://Zebra%20Technologies/ZTC%20LP2844-Z-200dpi?serial=46J083000010
MachineType: Dell Inc. Precision M6500
Papersize: letter
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
PpdFiles: Officejet-6300-series: HP Officejet 6300 Series, hpcups 3.12.2
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=c519e5fe-c1ce-42e5-a875-c395070a15ab ro quiet splash vt.handoff=7
SourcePackage: cups
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/07/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A04
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA04:bd06/07/2010:svnDellInc.:pnPrecisionM6500:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Precision M6500
dmi.sys.vendor: Dell Inc.
mtime.conffile..etc.cups.cupsd.conf: 2012-05-17T17:39:15.321368