US 2016/0109829 A1Published application

Developing device and image forming device provided with same

AssigneeKYOCERA Document Solutions Inc.

InventorsMinoru WADA, Masaru HATANO, Yoshinori HORIUCHI

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Abstract

Provided is a developing device that can restrain stress on a developer and improve image quality. This developing device (3a-3d) is provided with: a developing vessel (20) that accommodates the developer, which includes a magnetic carrier and toner; a supply transport screw (23b); a developing roller (31) that carries the developer supplied by the supply transport screw (23b); an ear cutting blade (32) that regulates layer thickness of the developer on the surface of the developing roller (31); and a magnet (50) magnetized on one surface and disposed on the upstream side of the ear cutting blade (32). The magnet (50) is disposed such that a magnetized surface (50a) faces the side of the developing roller (31).

Claims6

Dependent claims

A developing device comprising:

a developer container for storing developer containing magnetic carrier and toner;
a stirring/transporting member for stirring and transporting the developer inside the developer container;
a developer carrying member for carrying the developer fed from the stirring/transporting member;
a regulating member arranged opposite the developer carrying member, for regulating a layer thickness of the developer on a surface of the developer carrying member;
and
a magnet arranged on an upstream side of the regulating member with respect to a rotation direction of the developer carrying member, the magnet being magnetized on one face with an S pole and an N pole extending in a rotation axis direction of the developer carrying member,
wherein
the magnet is arranged opposite the developer carrying member with a magnetized face of the magnet facing the developer carrying member.

5 more elements

Dependencies are inferred from the claim text.