For printer Check to Make sure machine is properly connected to computer. If you are using a USB cable, make sure it is securely connected to both the machine and the computer. There could also be a problem with the USB cable. Replace the USB cable and retry the printing. Related topic: 1. How to fix Canon printer pixma MG3600 not responding Mac? 2. Canon printer pixma MG3600 not responding Windows 10 3. Canon printer troubleshooting fix errors