Ubuntu
cups package

  1. Bug #910272
  2. Comment #38

Comment 38 for bug 910272

Revision history for this message
Bill Yikes (yik3s) wrote :

Same problem for me. I have an old parallel-only printer. It has been working with a dedicated printer server, but the printer server died and the PC has no parallel port. So I connected a USB-to-LPT cable. As I attach the cable /var/log/syslog shows:

parport0: fix this legacy no-device port driver!
lp0: using parport0 (polling)

There does not exist a /dev/usb/lp0. I still set "DeviceURI parallel:/dev/usb/lp0" since that is what the instructions still say (https://wiki.ubuntu.com/DebuggingPrintingProblems#USB_-.3E_Parallel_adapter), and indeed that fails. I also tried "DeviceURI parallel:/dev/parport0" and CUPS rejected it. Then I tried "DeviceURI parallel:/dev/lp0". CUPS accepted it, I sent a test print, and it just sits on the job queue with the msg "Printer not connected; will retry in 30 seconds".

# usb_printerid /dev/lp0
Error: Invalid argument: GET_DEVICE_ID on '/dev/lp0'
# usb_printerid /dev/parport0
Error: Invalid argument: GET_DEVICE_ID on '/dev/parport0'

At another moment, I got a different error:

# usb_printerid /dev/lp0
Error: Device or resource busy: can't open '/dev/lp0'

This is on Bionic.