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Image forming apparatus and developing agent cartridge

A developer cartridge and developer technology, applied in the fields of electric recording technology using charge pattern, equipment for electric recording technology using charge pattern, and electrography, can solve problems such as toner leakage and achieve reliable miniaturization Effect

Active Publication Date: 2008-03-26
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no shutter for opening / closing the replenishment port in the developer cartridge, so toner leakage from the developer cartridge (apparatus main body side) becomes a concern during attaching / detaching the toner cartridge

Method used

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  • Image forming apparatus and developing agent cartridge
  • Image forming apparatus and developing agent cartridge
  • Image forming apparatus and developing agent cartridge

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0077] 1. The overall structure of the laser printer

[0078] 1 shows a side cross-sectional view of a main part of an illustrative aspect of a laser printer as an example of an image forming apparatus of one or more aspects of the present invention, and the figure shows a mode in which the scanning unit described later is closed. Fig. 2 shows a perspective view of the laser printer shown in Fig. 1 viewed obliquely from above on its right front side. Fig. 3 shows the state in which the cover in Fig. 2 is in the cover open position.

[0079] As shown in FIG. 1, the laser printer 1 is a multifunctional machine, and includes a main body casing 2 as an example of a casing, a paper feeding portion 4 and an image forming portion 5 housed in the main body casing 2, and formed in the main body casing 2. The discharging section 6 in the main body housing 2 and the scanning unit 7 as an example of an image reading unit are provided above the main body housing 2.

[0080] The paper feeding s...

no. 2 example

[0307] In the above embodiment, the operation panel 13 is provided on the upper wall 10 of the main body housing 2. However, it can also be set on the document board 192. In this case, the operation panel 13 is moved together with the scanning unit 7 so that the processing section mounting port 11 can be opened widely, thereby making it easier to replace the toner cartridge 8.

[0308] In the above-described embodiment, the processing section 9 as a whole includes the drum section 133 and the developing section 134, and is detachably mounted to the main body housing 2. In addition, in the laser printer 1, for example, in a state where the drum portion 133 is installed in the main body casing 2, the developing portion 134 may be detachably installed to the drum portion 133.

[0309] In the foregoing embodiment, the paper feed tray 51 can be detachably installed in the main body casing 2. However, the paper feed tray 51 may be integrally formed with the main body casing 2. In this c...

no. 3 example

[0312] (1) Toner cartridge

[0313]Figure 15 shows a perspective view of the toner cartridge viewed obliquely from above on the rear left side according to the third embodiment: (a) illustrates the state in which the developer accommodating portion is in the closed position of the cartridge shutter; (b) illustrates the developer The accommodating part is in a state where the box gate is open. Figure 16 shows a right side cross-sectional view of the toner cartridge according to the third embodiment: (a) illustrates the state in which the developer accommodating portion is in the closed position of the cartridge shutter; (b) illustrates the state in which the developer accommodating portion is in the open position of the cartridge shutter . Figure 17 shows a right side view of the toner cartridge according to the third embodiment: (a) illustrates the state in which the developer accommodating portion is in the closed position of the cartridge shutter; (b) illustrates the state in wh...

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PUM

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Abstract

An image forming apparatus is described. The image forming apparatus may include an image carrier on which an electrostatic latent image is formed; a developing agent carrier that transforms the electrostatic latent image into a visible image by supplying a developing agent to the image carrier; and a developing agent cartridge that accommodates a developing agent to be supplied to the developingagent carrier, arranged so as to be opposed to the developing agent carrier in a longitudinal direction of the developing agent carrier, and formed with an opening for horizontally passing the developing agent in a position horizontally opposed to the developing agent carrier.

Description

[0001] Cross reference of related applications [0002] This application claims priority to Japanese patent applications Nos. 2006-257879, 2006-257880, and 2006-257881 filed on September 22, 2006, and the contents of these applications are incorporated by reference into this application. Technical field [0003] The present invention relates to an image forming apparatus such as a laser printer and a developer cartridge provided therein. Background technique [0004] Conventionally, a well-known laser printer includes a photosensitive drum on which an electrostatic latent image is formed, a developing roller that converts the electrostatic latent image into a visible image, and a toner cartridge accommodating toner to be supplied to the developing roller. [0005] As such a laser printer, for example, an image forming apparatus has been proposed that includes a photosensitive member provided around the photosensitive member so as to sequentially perform the respective steps of cha...

Claims

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Application Information

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IPC IPC(8): G03G15/08G03G15/00
Inventor 佐藤正吾
Owner BROTHER KOGYO KK
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