LEX56P2542 - Lexmark 56P2542 110-127V Fuser

[Music] the fuser unit is basically two rollers the paper passes through the two rollers and the toner is melt on the paper the toner is a combination of plastic wax and resins the main components of the fuser unit are lower fuser roller or pressure roller upper fuser roller or heater roller heater lamp thermistor thermostat gears electronics assemblies are rarely used on fuser units because temperatures aren't suitable any electronic control is moved to the engine controller board for the same reason in the fuser unit often there are not paper sensors and motors there are two fuser rollers upper fuser roller and lower fuser roller the lower fuser roller it's just a silicone rubber roller on a metal shaft it's held in tight contact with the upper roller by Springs the upper fuser roller it's in hollow aluminum tube usually about 30 40 millimeters in diameter with the wall 1/2 millimeter