Has anyone any experience of the effect on printing speed by switching from parallel connection to USB. I currently drive a BCJ 3000 parallel and am thinking of switching to USB to see if it will increase the printing speed.
Like woodchip says, the printer can't print any faster so it doesn't matter how quickly the data can be sent to it if it can't output it any quicker. There will be no noticable difference between a printer on a Parallel port and one on a USB port. Unless you have endless USB ports there is little point swapping.