hello,

I'm using ubuntu 12.04 and I'm having trouble to print a document with a printer on the network. I added a Canon Canon LBP6300 CAPT (JP) to the list of printers that I can access through its IP address. I think the correct drivers have also been correctly installed, from the canon website.
The error returned from the printer is 'Idle - File "/usr/lib/cups/filter/pstocapt3" not available: No such file or directory'

How can I fix that ?

Thanks

Your driver is the one from the Canon site or the one from Ubuntu?
I asked since the package from canon has the /usr/lib/cups/filter/pstocapt3 file.

I tried both, but none worked. I wonder if that path is from my computer or is in the printer itself ?

I downloaded THESE DRIVERS that seems to have the file. Surely it's not a file from the printer!

These are actually the ones I downloaded. But maybe I didn't install them correctly ? I uncompressed them, and then used the '64 bit' directory, and then used 'alien *.rpm' followed by 'sudo dpkg -i cndrvcups-capt_2.20-2_amd64.deb cndrvcups-common_2.20-2_amd64.deb'. But it still says the same error message.

The 64bit version has no /usr/lib/cups/filter/pstocapt3 file but has /usr/lib64/cups/filter/pstocapt3.
Try symlinking to lib with
Maybe you'll have to do the same for pstocapt and pstocapt2.

Oh yes you're right, thanks. Now the error disappeared, and it says instead 'ready to print'. And when I try to print something, it says 'sent to the printer'. What is weird though is that the printer still doesn't print anything... What could cause that ? The network is not mine, neither the printer. is it possible that there's a firewall or an access list or something that prevents me from printing ?

Delete all jobs for the printer with lprm command:
then check if the printer is enabled with lpq command.
If the printer queue is disabled, enable it with
Try to send another print job after jobs deletion.

The -p option apparently doesn't exist. I tried just lprm, given that I only have one printer setup, and the output is:
>lprm
lprm: No active jobs on Canon-LBP6300-CAPT.
cupsenable doesn't produce any output.
I tried resending, and it still doesn't print anything, although the printer says 'ready'.

Sorry: the P is uppercase!
It can be a network problem or any other kind of issue. Any other clue of what's happening?
Can you ping the IP address of the printer?

No, not a clue . This time, there's no error message.
yes I can ping it.

Can you describe how you installed the printer?
All the steps, please.

I typed 'print' in the dash home and selected 'printing'. I then clicked on 'add' then selected 'network printer' and 'find printer', and I typed the IP of the printer in the host field, and clicked on 'find'. It found it (on port 9100). Then I pressed next, a popup saying it was searching available drivers appeared, and then closed. I clicked finished. Voila. Except that it's not working... There's no error message when I ask the printer to print something, it is correctly added to the queue, but from the printer side, nothing happens. I checked that I can ping the printer, that its port 9100 is opened, and that there is no error on the printer screen, saying something like paper or ink missing.

Ok. Perfect job, but still not working printer!
What if you run
echo 1 > file.txt && lpr file.txt

?

it produces no output, and nothing is printed .