JPH0354962U

JPH0354962U -

Info

Publication number: JPH0354962U
Application number: JP11543289U
Authority: JP
Priority date: 1989-09-30
Filing date: 1989-09-30
Publication date: 1991-05-28

Description

[Brief explanation of the drawing]

第１図は画像形成装置の一例の静電写真複写機
の作像部ユニツトの概略縦断側面図、第２図は現
像装置の断面図、第３図は要部を破断した現像装
置の斜視図、第４図はトナーカートリツジの縦断
側面図、第５図はトナーカートリツジの連結部を
拡大図示した要部の断面図、第６図はトナー補給
部へのトナーカートリツジの挿入状態を示す断面
図、第７図はトナーカートリツジの収縮状態を示
す断面図である。第８図は別実施例の現像装置の
断面図であり、第９図は従来例のトナーカートリ
ツジの斜視図である。１９ａ〜１９ｃ……筒部材（１９ａ……大径筒
部材、１９ｂ……隣接筒部材、１９ｃ……小径筒
部材）、２０……閉塞部材、２１……ピストン部
材、２２……トナー流下口、２６……トナー密封
部材、２７……剥離用部材、２８……位置規制部
材、Ｐ……トナー収容空間。 FIG. 1 is a schematic longitudinal sectional side view of an image forming unit of an electrophotographic copying machine which is an example of an image forming apparatus, FIG. 2 is a sectional view of a developing device, and FIG. 3 is a perspective view of the developing device with main parts cut away. , FIG. 4 is a vertical sectional side view of the toner cartridge, FIG. 5 is a cross-sectional view of the main part showing an enlarged view of the connection part of the toner cartridge, and FIG. 6 is a diagram showing how the toner cartridge is inserted into the toner supply section. 7 is a sectional view showing the toner cartridge in a contracted state. FIG. 8 is a sectional view of a developing device according to another embodiment, and FIG. 9 is a perspective view of a conventional toner cartridge. 19a to 19c...Cylinder member (19a...Large diameter cylinder member, 19b...Adjacent cylinder member, 19c...Small diameter cylinder member), 20...Closing member, 21...Piston member, 22...Toner flow port, 26... Toner sealing member, 27... Peeling member, 28... Position regulating member, P... Toner storage space.

Claims

[Claims for Utility Model Registration] (1) A plurality of cylindrical members having sequentially different diameters are connected to each other so as to be contractible over a predetermined range in a sealed state, and a large diameter cylindrical member at one end in the connection direction is connected to this. A means for finally contracting the adjacent cylindrical member is provided, and while closing one end of the large diameter cylindrical member with a closing member, the small diameter cylindrical member on the other end side in the connection direction is provided with a means for finally contracting the adjacent cylindrical member. A piston member is provided that is slidable over a predetermined range to form a toner storage space, and a toner flow port is provided on the peripheral surface of the large diameter cylindrical member, and a toner sealing member that closes the toner flow port is peeled off. A toner cartridge characterized in that a member extends toward the piston member. (2) A toner replenishing device using a toner cartridge described in claim (1) for utility model registration, which is for regulating the insertion position of the toner cartridge in the loading section of the toner cartridge. A toner replenishing device characterized by having a position regulating member inserted therein.