Please double click on the print icon so that the print can be changed from offline to online. First, turn off the power of your Canon printer. Printer Drivers Download Utility is professional printer drivers update software. For service mode operations you will need a service tool like v 4720 or newer. If you need to access the service mode to clear jams, reset toner page counters or make other changes to keep your office running smoothly, the method to access the mode is standard. Printer Drivers Download Utility is specialized in troubleshooting printer issue problem. Press and release “User Mode” to enter the service mode. Press as well as concord the Power button. Canon unlock service mode 103 is a utility program for Canon printers, the program allows you to reset the counter of the diaper (device, absorber) and other functions.