发明名称 IMAGE-FORMING APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide an image-forming apparatus which holds charged toners in a state of a cloud to a toner hopper and restricts dust in the circumference of dot images and shape expansion of dot images in a forward direction of a recording paper even when an image formation speed is increased. SOLUTION: In an image-forming apparatus, charged toners are selectively flown through holes of a toner control member 3 to a paper transfer belt serving also as a counter electrode, and adhered to a recording paper 6 proceeding to the upstream side of the paper transfer belt in a toner fly direction, thereby forming images. The image-forming apparatus is provided with a toner hopper 45 which can hold the toners to be flown to the paper transfer belt via the holes of the toner control member 3 in a state of a cloud, a toner transfer means comprising a particle pump 64 mixing the toners with the air and transferring to the toner hopper 45 and a transfer pipe 65, and a charging device 60 charging the toners transferred to the toner hopper 45. Moisture may be applied to the charged toners transferred to the toner hopper 45.
申请公布号 JPH11129522(A) 申请公布日期 1999.05.18
申请号 JP19970316159 申请日期 1997.10.31
申请人 RICOH CO LTD 发明人 TOKUMASU TAKAHIKO;MURAMATSU SATOSHI;SAKAI TOSHIO
分类号 B41J2/385;G03G15/05;(IPC1-7):B41J2/385 主分类号 B41J2/385
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