发明名称 IMAGE RECORDING APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide an image recording apparatus having a function by which toner-end is detected surely. SOLUTION: In the image recording apparatus of an electrophotographic system, a photosensor 5 is disposed so as to be opposed to the surface of a photoreceptor 1 at a position, which is the center part of the image-recording area of the photoreceptor 1 and is between a developing roller 4a and a transfer roller 7. Then, toner is stuck to the photoreceptor 1 after applying bias to the developing roller 4a before and after image-recording operation, and the existence of the toner on the surface of the photoreceptor 1 is detected by the photosensor 5, and the photoreceptor 1 is rotated in reverse, after detection and the bias having reverse polarity is applied to the developing roller 4a, so that the toner on the surface of the photoreceptor 1 is returned to the developing roller 4a.
申请公布号 JP2001201898(A) 申请公布日期 2001.07.27
申请号 JP20000011343 申请日期 2000.01.20
申请人 RICOH CO LTD 发明人 MATSUYAMA YASUO
分类号 G03G15/00;G03G15/06;G03G15/08;G03G21/00 主分类号 G03G15/00
代理机构 代理人
主权项
地址