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Toner cartridge and developing device and image forming apparatus using the same

A technology of toner images and toner cartridges, which is applied in the direction of electrical recording technology using charge graphics, equipment and instruments using electrical recording technology using charge graphics, and can solve the problems of reduced fluidity of toner and achieve The effect of stable delivery volume, prevention of condensation, and constant density and pressure

Active Publication Date: 2009-10-14
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, the above-mentioned existing method has the following problems when the toner box is large or there is a large amount of toner remaining in the toner box, that is, the toner will be damaged due to the weight of the toner and the spiral toner conveying. Part rotates and is compressed, causing the external additive of the toner to be buried in the binder resin constituting the core particles of the toner, reducing the fluidity of the toner

Method used

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  • Toner cartridge and developing device and image forming apparatus using the same
  • Toner cartridge and developing device and image forming apparatus using the same
  • Toner cartridge and developing device and image forming apparatus using the same

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Embodiment Construction

[0037] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[0038] figure 1 It is an example of implementing the present invention, and is an explanatory diagram showing the overall configuration of an image forming apparatus using the toner cartridge of the present invention. figure 2 It is a front sectional view showing the periphery of a toner cartridge and a developing device constituting the image forming apparatus. image 3 It is a front sectional view showing the configuration of the toner cartridge. Figure 4 yes figure 2 A1-A2 sectional view. Figure 5 yes figure 2 B1-B2 sectional view.

[0039] The image forming apparatus 30 of this embodiment is as figure 1 As shown, there are: a photosensitive drum 17 on which an electrostatic latent image is formed on the surface, a power feeding device 25 for charging the surface of the photosensitive drum 17, an exposure device 22 for forming an electrostatic late...

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Abstract

An toner cartridge and developing device and image forming apparatus using the same. The image forming apparatus includes a photoreceptor drum, a charger, an exposure device, a developing device, a toner cartridge for supplying toner to the developing device, a transfer device and a fusing device. The toner cartridge includes a toner container, a toner discharge port, a toner agitator, a toner discharger having a toner conveyor, a toner discharger partition that separates the toner container into compartments on the toner agitator side and on the toner discharger side. The toner conveyor is constructed such that its screw pitch becomes greater as it becomes more distant from the toner discharge port along the axial direction of the rotational axis of the toner discharger.

Description

technical field [0001] The present invention relates to a toner cartridge, a developing device and an image forming apparatus using the toner cartridge, and in particular to toners used in image forming apparatuses such as electrostatic copiers, laser printers, and facsimile machines that use toner to form images. A toner cartridge, and a developing device and an image forming device using the toner cartridge. Background technique [0002] Conventionally, in image forming apparatuses using electrostatic electrophotography such as copying apparatuses and facsimile apparatuses that use toner, image output is performed by supplying toner to a developing apparatus using a toner replenishing apparatus such as a toner cartridge. continuous operation. [0003] The image forming process of the image forming apparatus configured in this way generally includes the steps of power supply, exposure, development, transfer, peeling, cleaning, static elimination, and fixing. [0004] That...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/08G03G21/16G03G15/00
CPCG03G2215/085G03G2215/0833G03G15/0839G03G15/0875G03G15/0877
Inventor 奥田健若林雄吉川良宏
Owner SHARP KK
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