John R Pierce wrote: > On 7/30/2014 10:03 PM, Frank Cox wrote: >> The computer must have been pushing data to the printer too quickly over >> the USB 3.0 port; the printer got a garbled postscript instruction and >> everything went downhill from there. > > that doesn't compute. USB 3 uses a different (new) set of 5 pins on > the same connector, but the original 4 pins are still there and support > USB 1 and 2. A more likely explanation is that the device driver for > this printer isn't enumerating USB devices correctly, or isn't handling > some additional usb3 related port-specific status information correctly, > so its getting confused. > > The whole USB spec is a ungawdly mess now with layers and layers of BS > piled up on a shakey foundation, and complicated APIs to access all this. > Is that why my DD-WRT router keeps forgetting about my USB printer? <g> mark PS Out of here for a while, on vacation