Mita Industrial Co., Ltd.

Hiroshi Hiraoka

Hiromi Sakata

Nobuhiko Kozuka

Eiichi Tone

Shuji Fujisawa

Yousuke Ohata

Takeshi Tsuda

Shingo Sakao

A developing device includes a developing section provided with an applicator for applying a developer to a latent electrostatic image and a supporting section for supporting the developing section turnably between an operating position at which the developer held on the applicator acts on image-bearing member and a non-operating position at which the developer held on the applicator does not substantially act on the image-bearing member. According to a first aspect, positioning device acts on the developing section and holds it at the operating position. According to a second aspect, there is provided device for holding the developing section at the non-operating position at the time of mounting a main body of the developing device on an image-forming machine. According to a third aspect, when the main body of the developing device is mounted on the image-forming machine, electrical connecters provided thereon are electrically coupled to each other. According to a fourth aspect, a toner cartridge loaded detachably into the main body of the developing device, not necessarily of the above type, cannot be detached from the main body of the developing device unless its discharge opening is closed with a cover member.

Developing device

A charge eliminating lamp device, for use in an electrostatic copying apparatus, comprising a light shielding frame member having a light transmission opening formed on that surface which faces the surface of an electrostatographic material, a plurality of selectively energizable illuminating lamps disposed within the light shielding frame member in spaced-apart relationship in the width direction of the electrostatographic material, and a plurality of inside edge restricting light shielding walls disposed within the light shielding frame member and positioned adjacent to the insides of the illuminating lamps respectively as viewed in said width direction. The charge eliminating lamp device includes selectively energizable auxiliary lamps disposed among said illuminating lamps as viewed in said width direction. Alternatively, a partitioning light shielding wall is disposed within the frame member extending in said width direction for partitioning the inside of the frame member into two sections in the moving direction of the electrostatographic material, and the illuminating lamps and the inside edge restricting light shielding walls are disposed alternately in one and the other of the two sections. Alternatively, auxiliary light transmission openings are formed in at least one of the front and rear walls of the frame member located frontwardly and rearwardly as viewed in the moving direction of the electrostatographic material.

Charge eliminating lamp device

Growing community of inventors

Sakai, Japan

Hiroshi Hiraoka