Developer holder, image forming unit, and image forming apparatus
AssigneeOki Data Corporation
InventorYukiyoshi Oda
Life of this patent
Estimating the term…
Abstract
A developer cartridge holds toner therein. A chamber is A shutter rotates in slide contact with the arcuate surface of the chamber, being movable either to a closing position where the shutter closes the first opening or to an opening position where the shutter opens the first opening. A rotating shaft is rotatably supported in the chamber. A resilient scraper blade has one end fixed to the rotating shaft and extends from the rotating shaft to scrape the arcuate surface when the rotating body rotates. When the scraper blade extends through the first opening, the scraper blade extends in a direction at an angle with a line tangent to an arcuate plane in which the arcuate surface lies, the scraper blade. The angle is in the range of 30 to 70 degrees.
Claims19
A developer cartridge comprising:
- a chamber holding a developer therein and including an inner surface and a first opening through which the developer is discharged;
- a shutter movable in slide contact with the inner surface of said chamber, said shutter being movable either to a closing position where said shutter closes the first opening or to an opening position where said shutter opens the first opening;
- a rotating body rotatably supported in said chamber;
- a resilient scraper blade having one end fixed to said rotating body and extending away from said rotating body, a free end of said scraper blade scraping the surface when said rotating body rotates, wherein when said scraper blade extends in a first direction through the first opening and a plane in which the surface lies, the first direction forming an acute angle with the plane at a position where the scraper blade extends through the plane.
Dependencies are inferred from the claim text.