专利检索 ap:("BROTHER KOGYO KABUSHIKI KAISHA") AND inv:"Shunsuke Aiba" 第 1 页

1.

发明授权
Drum unit attachable to image forming apparatus and including toner cartridge having toner memory including three terminals 有权

公开(公告)号：US11762311B2

公开(公告)日：2023-09-19

申请号：US17852760

申请日：2022-06-29

申请人： BROTHER KOGYO KABUSHIKI KAISHA

发明人： Masaaki Wakizaka , Shinta Sugiura , Shunsuke Aiba , Keita Inoue

IPC分类号： G03G15/20 , G03G15/08

CPC分类号： G03G15/0863

摘要： A drum unit detachably attachable to an image forming apparatus includes: a frame; a photosensitive drum; a toner cartridge including a toner casing and a toner memory; a connector electrically connected to the image forming apparatus; and a relay board electrically relaying the toner memory and the connector. The toner memory performs communication according to a standard that sets a value of data on a basis of a voltage for data communication at a timing when a prescribed period of time has elapsed since the voltage has made a prescribed change. The toner memory consists of three terminals as electrical contacts. The three terminals are a power supply terminal for supplying a supply voltage to the toner memory, a ground terminal, and a data terminal for communication of data to be written into the toner memory and data to be read from the toner memory.