Developing cartridges with fixed protrusions and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-8995891-B2
Application number	US-201314032278-A
Country	US
Kind code	B2
Filing date	Sep 20, 2013
Priority date	Sep 21, 2012
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

Developing cartridges include a main body, a developer transport member, and a developer thickness regulating member. The main body includes a first and second side portions separated from each other along a direction. The developer thickness regulating member regulates a developer thickness and extends in a direction between the first and second side portions. The developer thickness regulating member includes an end portion, which is disposed near the first side portion, and a first protrusion, which extends along the particular direction from the end portion to at least the first side portion. The main body forms a cavity in the first side portion. The cavity is defined by at least a first surface, a second surface opposing the first surface, and a second protrusion that protrudes from the first surface toward the second surface. The first protrusion is fixed at a position between the second protrusion and the second surface.

First claim

What is claimed is:

1. A developing loping cartridge comprising:
a main body comprising a first side portion and a second side portion separated from the first side portion along a first direction;
a developer transport member configured to rotate about a rotational axis extending in the first direction and to transport developer; and
a developer thickness regulating member configured to regulate a thickness of the developer transported by the developer transport member, the d…

Assignees

• Itabashi Nao
• Brother Ind Ltd

Inventors

• Itabashi Nao

Classifications

• G03G15/0865

  Physics · mapped topic

• G03G21/1821

  Physics · mapped topic

• G03G15/0812 Primary

  Physics · mapped topic