JPS6269248U

JPS6269248U -

Info

Publication number: JPS6269248U
Application number: JP16042785U
Authority: JP
Priority date: 1985-10-18
Filing date: 1985-10-18
Publication date: 1987-04-30

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す断面図、第２図
は第１図の―線断面図、第３図は本考案の別
の実施例を示す断面図、第４図は第３図の―
線断面図である。１……感光体、２……画像形成部、３……現像
ローラ、５……現像部、１３……現像剤容器、１
４……トナーケース、１８……外筒、１９……内
筒、２０……トナー補給用開口部、２１……蓋体
、２７……補給口、３１，３８……駆動手段。 Fig. 1 is a sectional view showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the line - - of Fig. 1, Fig. 3 is a sectional view showing another embodiment of the invention, and Fig. 4 is a sectional view taken along the line - - of Fig. 1. of-
FIG. DESCRIPTION OF SYMBOLS 1...Photoreceptor, 2...Image forming section, 3...Developing roller, 5...Developing section, 13...Developer container, 1
4... Toner case, 18... Outer cylinder, 19... Inner cylinder, 20... Toner supply opening, 21... Lid, 27... Supply port, 31, 38... Drive means.

Claims

[Scope of utility model registration request]

An image forming section equipped with a photoreceptor on which an electrostatic latent image is formed, a developing section equipped with a developing roller, a cleaning section that cleans the surface of the photoreceptor, etc. are integrated into a unit that can be freely attached to and removed from the body of the image forming apparatus. The developing section has a developer container containing a developer made of toner and carrier, and a toner case containing replenishment toner, and the toner case is fixed to the upper part of the developer container. outer cylinder and
An inner cylinder is rotatably provided within the outer cylinder and rotationally driven by a drive mechanism during development, and a toner replenishment opening is formed at the lower end of the outer cylinder, and the inner cylinder is provided with a toner replenishing opening on the peripheral wall of the inner cylinder. An image forming apparatus characterized in that a replenishment port corresponding to the toner replenishment opening is formed, and a lid body is provided below the toner replenishment opening to open the opening during development and close it during non-development. process unit.