developer cartridge

Abstract

A developer box, comprising a box body (1) which has a powder storage bin (10), wherein the box body (1) is provided with a first end wall (11) and a second end wall (12), and a stirring frame (3) is arranged in the powder storage bin (10); a transmission gear (61), a stirring frame gear (31) and a detection device (7) are arranged on the first end wall (11), the detection device (7) comprises a detection wheel (8) and a torsion spring (9), and a tooth-shaped bulge (81) and a trigger component (82) are arranged on the detection wheel (8); a first deflector rod (32) is arranged on the outer end surface of the stirring frame gear (31), the first deflector rod (32) is located in the position deviating from the axle centre of the stirring frame gear (31), and a second deflector rod (87) is arranged on the detection wheel (8); and an elastic component (88) which extends inwards along the axial direction thereof is fixed on the inner end surface of the detection wheel (8), and a blocking component (13) used for blocking the elastic component (88) is fixed on the first end wall (11).

Description

technical field [0001] The present invention relates to a developer cartridge used in an image forming apparatus such as a laser printer or a copier. Background technique [0002] In laser image forming equipment, such as laser printers, copiers or digital all-in-one machines, a developing device for developing an electrostatic latent image formed on a photosensitive drum is provided, and the developing device deposits a developer on the electrostatic latent image for development. The developer consumed for developing is generally provided by the developer cartridge, and when the developer in the developer cartridge is used up, a new developer cartridge is replaced. [0003] Partially integrated and separated developer cartridges are provided with a use status detection device for cooperating with a sensor on the image forming device to detect whether the developer cartridge being used is new. For example, CN200720060742.9 Chinese Utility Model Patent discloses a developer ...

AI Technical Summary

Problems solved by technology

[0004] In the above structure, the effect of the torsion spring is mainly used to promote the contact of the trigger piece to the sensor of the image forming device. The defect is that the detection wheel rotates counterclockwise under the reset force of the torsion spring, and the two trigger pieces come into contact with the sensor one after another. Instantaneous separation, very short time, poor reset effect, can not achieve the time interval that triggers the appearance of the sensor of the image forming device

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