The problem is that the kernel made your printer available under the
device file /dev/usb/lp0 when your print queue was created. On the
current session (boot) your printer got assigned /dev/usb/lp1 but the
queue is configured for /dev/usb/lp0.
Do you have more than one printer? In this case the first to be turned
on gets /dev/usb/lp0 and the second /dev/usb/lp1. If both are turned on
during boot the assignment is random. This is an old problem and there
fore the USB backends of CUPS ("usb") and of HPLIP ("hp") base the
printer URIs on the printer's device IDs and serial numbers, making sure
that each print queue is always assigned to the same printer, the one it
was originally intended for. Unfortunately, Canon did not take care of
this by their "cnusb" backend, the one you are using.
So please make sure that when you boot your printers are turned off and
after booting turn on the Canon first. If you have more than one
computer, do not connect any other printer to the computer to which you
connect your Canon printer. Connect your other printer to another
computer and share it over your local network (some routers and NAS
systems also have a USB port to make a network printer out of a USB
printer, connect your other printer there and on your computer set it up
like a netwoprk printer, do not connect your Canon printer to the router
or NAS as it needs its special backend).
This is a problem of Canon's printer driver and not a bug of Ubuntu. So
we cannot fix this. Please contact Canon.
** Changed in: cups (Ubuntu)
Status: New => Won't Fix
** Summary changed:
- Printer MF3010 reports not connected
+ Printer MF3010 reports not connected (Canon's CUPS backend uses /dev/usb/lp0,
not safe if more than one USB printer is used)
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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1185309
Title:
Printer MF3010 reports not connected (Canon's CUPS backend uses
/dev/usb/lp0, not safe if more than one USB printer is used)
Status in “cups” package in Ubuntu:
Won't Fix
Bug description:
Printer was previously working on a different machine and 12.10 32 bit
Followed instructions from
https://wiki.ubuntu.com/DebuggingPrintingProblems (output attached)
lsusb:
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 005 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 003: ID 04e8:61b3 Samsung Electronics Co., Ltd
Bus 002 Device 005: ID 04a9:2759 Canon, Inc.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: cups 1.6.2-1ubuntu5
ProcVersionSignature: Ubuntu 3.8.0-22.33-generic 3.8.11
Uname: Linux 3.8.0-22-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Wed May 29 09:12:19 2013
InstallationDate: Installed on 2013-05-25 (3 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
Lpstat:
device for Canon-MF3010: cnusb:/dev/usb/lp0
device for MF3010: usb://Canon/MF3010?serial=0117O0002FD6&interface=1
MachineType: System manufacturer System Product Name
MarkForUpload: True
Papersize: a4
PpdFiles:
MF3010: Canon MF3010 ver.2.6
Canon-MF3010: Canon MF3010 ver.2.6
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-22-generic
root=UUID=9d072ad7-70f3-410c-ab6d-c5a28135c524 ro quiet splash vt.handoff=7
SourcePackage: cups
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/03/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3401
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P9X79 WS
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: PCS
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr3401:bd01/03/2013:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP9X79WS:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
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