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My Brother-2030 printer denied printing for the last month and I couldn’t find redemption.

The IPP report message was:

Unable to open device "hal:///org/freedesktop/Hal/devices/usb_device_":
Permission denied

But I figured it out. The final solution is easy:

sudo chmod 700 /usr/lib/cups/backend/usb
sudo chmod 700 /usr/lib/cups/backend/hal

I post this, because I’m not the only one having these kind of problems with HAL and a USB printer while using ubuntu (with 64 bit architecture).
Maybe this will help someone searching for a solution.

UDATE:
I updated the command with Jim Morris’ comment.