Hi there! My name is***** am a computer professional with over 15 years of experience with both Mac and Windows computers, phones, tablets, and printers. It would be my pleasure to assist you with this. The Canon Imageclass D240 provides both USB scanning mode (if it is hooked directly to your computer with a usb cable) or Network Scanning Mode (if it is on a network..usually for business). Which method do you need instructions for, please?