专利检索 ap:("TOSHIBA TEC KABUSHIKI KAISHA" OR "KABUSHIKI KAISHA TOSHIBA") AND inv:"Noboru Furuyama" 第 3 页

21.

发明授权
Image forming apparatus and image forming method 有权

公开(公告)号：US10732549B1

公开(公告)日：2020-08-04

申请号：US16353470

申请日：2019-03-14

申请人： TOSHIBA TEC KABUSHIKI KAISHA

发明人： Noboru Furuyama

IPC分类号： G03G15/20 , G03G15/00

摘要： An image forming apparatus includes a heater to generate heat with AC power for fixing a toner image to a medium and a power supply device to supply the AC power to the heater according to a pattern corresponding to one of at least two different combinations of a control cycle and a resolution in duty ratio. The control cycle corresponds to an integer multiple of a nominal AC power cycle. The duty ratio reflects a number of nominal AC power cycles in the control cycle during which the heater is in an on state.