公开(公告)号：US09958827B2

公开(公告)日：2018-05-01

申请号：US15595159

申请日：2017-05-15

Applicant: S-Printing Solution Co., Ltd.

Inventor： Hwa-chul Choi ,  Yun-su Kim

IPC: G03G15/20 ,  G03G21/20 ,  G03G15/01

CPC classification number: G03G21/20 ,  G03G15/011 ,  G03G15/2039

Abstract: An image forming apparatus is provided. The image forming apparatus includes a fuser configured to fuse a print sheet on which toner is developed and a fuser driver configured to supply a heating element of the fuser with a power source supplied from an external alternating current (AC) so as to enable the fuser to have a preset target temperature. The fuser driver performs a control of the number of waveforms hours of an AC power source supplied to the heating element by varying a control cycle according to a temperature of the fuser.