Comment 55 for bug 1001028

Note that to actually solve this problem you need to force uni-directional mode.

This can be done by the command

lpadmin -p <printer> -o usb-unidir-default=true

with <printer> replaced by the name of your print queue.

Everyone with this problem please post the output of the command


here, so that we can add exception rules to the CUPS USB backend to let it automatically force uni-directional mode on such printers.