Actually, it would be 3 bytes per dot, not bits, and for an 8" x 10" photo at 2880 dpi that would be 1,990,656,000 bytes that need to be sent to the printer in raw mode. Since USB maxes out at around 1 Mbyte/sec, in 3.5 minutes you can only send about 210 MBytes to the printer, so I would...