IGBT induction heating coils are widely used in modern photocopiers, laser printers, facsimile machines, data recorders, and scanners to improve efficiency in the toner fixing process. In these devices, toner is transferred from the drum to paper using a combination of heat and pressure to create a permanent print.
In traditional systems, radiant heating using halogen lamps was commonly used for the fixing process. However, this method consumes nearly 90 percent of the total printing energy, making it inefficient for modern requirements.
Induction heating technology offers a more efficient solution by reducing energy loss and allowing for more compact printer designs. In this system, an induction heating coil is installed concentrically inside the fixing roller, generating heat directly and more efficiently.
The high frequency inverter that supplies power to the induction coil is built using Insulated Gate Bipolar Transistor or IGBT technology. This enables precise and efficient control of the heating process while maintaining stable performance across different operating conditions.
High efficiency levels of over 94 percent have been achieved using series resonant zero current switching pulse density modulation high frequency inverters in induction heating rollers. These systems support output power regulation ranging from 50 watts to 1200 watts, making them highly effective for modern printing applications.
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