Ubuntu
hplip package

  1. Bug #595650
  2. Comment #16

Comment 16 for bug 595650

Revision history for this message
Naga Samrat Chowdary, Narla (samrat-hplip) wrote : Re: after the last updates printer stopped working

It look like "/usr/lib/cups/backend/hp" backend is failed to open device and exit with status 21.
Up to i know "SELinux" is also in disable state in ubuntu.
Printing has been working before upgrade and also with different version of Ubuntu. I guess "hplip" package has no changes with this upgrade.

Workaround: Adding printer from CUPS web interface. http://localhost:631. So, CUPS will use "usb" as backend for communication.
Once if we get "/usr/lib/cups/backend/hp". we need to restart the machine.
/usr/lib/cups/backend/hp uses libusb API calls for USB communication with printer. "/usr/lib/cups/backend/hp" code is same/common for all the HP printers (device independent), .

Can any one run "hp-makeuri" and attach the output.

Wim Cools,
hp-check log showing that your system is using "hpcups" filter and using "hpijs" ppd for printing.
Can you please remove printer queue and re-add it.

It looks like some issues with 2.6.32-22 and 2.6.32-21 with USB. Not only with Printer USB.

I will try to reproduce and fix this issue.

Thanks for your support!
Naga Samrat Chowdary, Narla