printer via usb parallel adapter not working correctly

[Erhard Kroeger]

Binary package hint: cups

I want to use a usb to parallel adapter for my HP-Laserjet 6L printer. In order to get a print-job output I have to do the following after booting the system:
1. Delete the (correcly recognized) printer from the panel shown up after selecting System>Systemverwaltung>Drucken (may be in English System>Administration>Printing ?).
2. Wait a little. Unplug the PL2302 USB-connector). Wait a little. Plugin the USB-connector again. Do a print-job (e.g. from firefox). The printer prints it out correctly.

But now, no more job is printed. In order to re-enable the printer for the next job, I have to repeat the above actions starting with 1.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: cups 1.4.3-1ubuntu1.2
ProcVersionSignature: Ubuntu 2.6.32-24.39-generic-pae 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic-pae i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Sat Aug 7 19:36:05 2010
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
Lpstat: device for HP-LaserJet-6L: usb://HP/LaserJet%206L
Lsusb:
 Bus 002 Device 005: ID 067b:2305 Prolific Technology, Inc. PL2305 Parallel Port
 Bus 002 Device 002: ID 0ac8:301b Z-Star Microelectronics Corp. ZC0301 Webcam
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: System manufacturer System Product Name
Papersize: a4
PpdFiles: HP-LaserJet-6L: HP LaserJet 6L Foomatic/ljet4 (recommended)
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-24-generic-pae root=UUID=6d751f98-a7aa-4e2c-abed-65720c6df221 ro quiet splash
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: cups
dmi.bios.date: 03/19/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1304
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M2N68-AM SE2
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1304:bd03/19/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM2N68-AMSE2:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Till Kamppeter (till-kamppeter)]

If your printer does not print again after it has done one job, run the command

lpstat -p

in a terminal window and post the output here. If the printer is marked disabled, run

cupsenable HP-LaserJet-6L

and see whether the next job prints.

Attach also your /var/log/syslog file.

[Erhard Kroeger (ne-kroeger)]

Here are the actions, which you required:

After finishing one printer job successfully, I enterd one more print job, waited some time for the output, which was not printed and got the following

root@asus-desktop:~# lpstat -p
Drucker „HP-LaserJet-6L“ druckt gerade HP-LaserJet-6L–0; aktiviert seit So 15 Aug 2010 18:10:06 CEST
root@asus-desktop:~# cupsenable HP-LaserJet-6L
root@asus-desktop:~#

meaning in English that the printer is just printing, which it really did not do.

The printer would only do the next job after deleting it (together with its queue), unplug it from usb and pluging it in again.
Then (after 18:33h) I got an output from a new job.

[Till Kamppeter (till-kamppeter)]

Can you also attach an error_log of the failing jobs following the instructions in the "CUPS error_log" section of https://wiki.ubuntu.com/DebuggingPrintingProblems?

[Erhard Kroeger (ne-kroeger)]

Excuse the delay of my answer. But the hardware of my parallel to usb adapter stopped to work and printing was impossible even from anoter system (Windows), with tat it worked correctly before. Thus, I bought a new adapter from another company (Digitus Centronics to USB, Which works correctly out of the box. Thus it is no more necessary, to find out, what causes the present bug. As the pevious printer adapter (with a PL2305 chip) with which it was caused, is defecct now, I too cannot supply the error log, which you desired.

I think, you should close this record.
I beg your pardon for it.

(My wife, however, is happy and can print easily her Thai newspapers from the internet, as she could before. I hope, we stiii can do with the next Ubuntu release and without new hardware)