I have looked into the source code of the usblp module and there is an exception rule exactly for this printer (Brother HL-1440) because it has problems with bi-directional communication. Try forcing uni-directional with
lpadmin -p <printer> -o usb-unidir-default=true
Does this work for you?
I have looked into the source code of the usblp module and there is an exception rule exactly for this printer (Brother HL-1440) because it has problems with bi-directional communication. Try forcing uni-directional with
lpadmin -p <printer> -o usb-unidir- default= true
Does this work for you?