JPS6362856U

JPS6362856U -

Info

Publication number: JPS6362856U
Application number: JP15567586U
Authority: JP
Priority date: 1986-10-13
Filing date: 1986-10-13
Publication date: 1988-04-26

Description

[Brief explanation of drawings]

第１図〜第２図は本考案の実施例を示しており
、第１図は第一実施例に係る現像装置の断面図、
第２図は第二実施例に係る現像装置の断面図であ
り、また第３図〜第５図は従来の現像装置の断面
図をそれぞれ示している。〔符号説明〕１…感光ドラム、２…現像ローラ
、３…現像ハウジング、４…トナー供給口、５…
トナーカートリツジ挿入部、６…トナー層厚規制
部材、７…シール部材、９…トナー。 1 to 2 show an embodiment of the present invention, and FIG. 1 is a sectional view of a developing device according to the first embodiment;
FIG. 2 is a sectional view of a developing device according to a second embodiment, and FIGS. 3 to 5 are sectional views of conventional developing devices. [Description of symbols] 1...Photosensitive drum, 2...Developing roller, 3...Developing housing, 4...Toner supply port, 5...
Toner cartridge insertion portion, 6... Toner layer thickness regulating member, 7... Seal member, 9... Toner.

Claims

[Scope of Claim for Utility Model Registration] (1) A developing housing having a developing roller disposed therein facing the latent image carrier, and a developing housing provided on the back side of the developing housing through which a toner supply port is provided. The developing device includes a toner cartridge insertion portion communicating with the toner cartridge insertion portion, and supplies toner from the toner cartridge inserted in the toner cartridge insertion portion to the developer housing via the toner supply port, the toner cartridge insertion portion A toner supply device characterized in that a sealing member for opening and closing the toner supply port is provided to prevent toner from leaking from the toner supply port to a toner cartridge insertion portion when a toner cartridge is not inserted. (2) Utility model registration claim 1, characterized in that the sealing member is constituted by a cylinder having the same shape as the toner cartridge and provided in the toner cartridge insertion part so as to be freely insertable and removable. The developing device described. (3) The sealing member is rotatably fitted into a cylindrical toner cartridge insertion portion, and is constituted by a cylindrical body having an opening aligned with the toner supply port. A developing device according to claim 1 of the patent registration claim.