Support Code 1403 Appears (Print Head May Be Damaged) - TR150 How do I check the counters? MF743Cdw - MF741Cdw - MF644Cdw - MF642Cdw - MF641Cdw Support Code 1700 / 1701 Appears (Ink Absorber is Almost Full) - MB2120 Paper is Pulled from the Wrong Source - TR7520 How to Perform a Firmware Update from a Computer - MG7720 Connecting Your Printer to a Wireless LAN (WPS PIN Code) - MG3100 Series
