JPH0389461U

JPH0389461U -

Info

Publication number: JPH0389461U
Application number: JP15022389U
Authority: JP
Priority date: 1989-12-28
Filing date: 1989-12-28
Publication date: 1991-09-12

Description

[Brief explanation of drawings]

第１図及び第２図は夫々本考案が適用される現
像装置を備えた画像形成装置の感光体近傍の構成
を示す断面図、第３図は現像装置の他の形状を示
す断面図、第４図ａ，ｂは本考案の実施例の現像
装置のトナーホツパ部の構成を示す断面図でａは
未使用トナーが充満した状態を示し、ｂは未使用
トナーが減少した状態を示す図、第５図ａ，ｂは
他の実施例の同様の断面図、第６図ａ，ｂはその
廃トナー回収容器の折畳まれた状態と拡張した状
態を示す第５図ａ，ｂ中の−線による断面図
である。４……現像装置、６……クリーニング装置、７
……廃トナー搬送管、８……トナーホツパ、９…
…アジテータ、１０，１６……廃トナー回収容器
、１２……アジテータ駆動軸、１３，１４……ア
ーム、１５……未使用トナー。 1 and 2 are sectional views showing the structure near the photoreceptor of an image forming apparatus equipped with a developing device to which the present invention is applied, and FIG. 3 is a sectional view showing another shape of the developing device, and FIG. Figures 4a and 4b are cross-sectional views showing the configuration of the toner hopper section of the developing device according to the embodiment of the present invention. 5a and 5b are similar sectional views of other embodiments, and FIGS. 6a and 6b are the - lines in FIGS. 5a and b showing the folded and expanded states of the waste toner collection container. FIG. 4...Developing device, 6...Cleaning device, 7
...Waste toner transport pipe, 8...Toner hopper, 9...
... Agitator, 10, 16... Waste toner collection container, 12... Agitator drive shaft, 13, 14... Arm, 15... Unused toner.

Claims

[Claims for Utility Model Registration] A toner image formed on a photoreceptor is transferred by a developing device that has a toner hopper in which the built-in toner is agitated by a rotating agitator, and is supplied with the toner consumed during development. In a developing device of an image forming apparatus, in which the toner transferred to paper and remaining on the photoreceptor after transfer is collected by a cleaning device and stored in a waste toner storage section, the waste toner storage section is placed in the toner hopper, 1. A developing device, characterized in that the container is expandable and retractable according to the amount of toner contained therein, and is provided within a range surrounded by the rotation locus plane of the agitator so as not to interfere with the rotating agitator.