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I am working with an old CentOs version (5.0) that is not really my machine.

Recently, for some dark reasons, I have problems in printing.

The jobs rest in queue, and I cannot cancel them from the bar icon.

I have tried with some terminal commands (cancel -a ask for a password, which I don't have, lpq -a, and other things of what I don't really know the meaning), but the job is still stuck at the printer icon.

Do you have any suggestions?

The image explains my situation and how the first answer can not fix this.

crony is the name of another printer, while the one I use is crust.

enter image description here

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    If you have CUPS web-interface running I'd try to cancel a print job from there. Usually it works for me localhost:631
    – UVV
    Jul 10, 2014 at 6:14

2 Answers 2

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To cancel a print job :

  1. List all jobs:

    lpq 
Rank   Owner/ID              Class  Job Files       Size Time 
active bob                   A      11  zarma.txt   8000 10:12:10

  2. Delete the job by it's id, which is 11 here:

    lprm 11

You must be root to delete jobs that you don't have initiated.

If the printer is not the default printer, add the -P option, e.g.

    lpq -P crust
    lprm -P crust …

Supposing that :

If lpq didn't show any printing jobs, it is because they are no more in the queue.

If as shown by the screen copy the printer status is unknown, perhaps the line remains because the tool is missing the printing status.

Perhaps the job has already been submitted and the job will be cancelled, when the communication with the printer is established.

Is it a link problem or is the printer down?

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  • Thanks for your post, but it does not work. I have edited my post to explain it better.
    – Py-ser
    Jul 10, 2014 at 6:21
  • @Py-ser To select which printer to act on, use the -P option (see my edit)
    – Gilles 'SO- stop being evil'
    Jul 10, 2014 at 22:57
  • @Gilles, it is not a matter of selection, it is a matter that the lpq command does not see any job in queue, but the printer window does!
    – Py-ser
    Jul 11, 2014 at 0:43
  • @Py-ser By running lpq with no argument, you ask it to list the jobs on the default printer, which for you is crony. So it doesn't show any job. There is no contradiction with the printer window which shows a job on a different printer (crust).
    – Gilles 'SO- stop being evil'
    Jul 11, 2014 at 0:46
  • @Gilles, I see. So how can I print on terminal the jobs of another printer? I tried lpq -P crust, but the output is the same (with just a different printer name).
    – Py-ser
    Jul 11, 2014 at 0:54
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Just for others that end up here:

On new linux versions, there works the simple command cancel:

The cancel command cancels print jobs. If no destination or id is specified, the currently printing job on the default destination is canceled.

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