When connected to PC, if the message "Unknown device" appears or prompting scanner or camera was found. Press "Utility" button�to choose the I/O Setting menu, you may see the USB Device menu has been set to be "PictBridge", you should switch it to "Auto Detect" or "Computer". If necessary, restart the oscilloscope.
If connecting to a PictBridge printer or the printing is unsuccessful, maybe the USB Device menu has been set to "Computer". You should switch it to "Auto Detect" or "PictBridge". If necessary, restart the oscilloscope.