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Processing box and electronic imaging equipment

A technology for processing a cartridge and a cartridge body, which is applied in the equipment, electrorecording technique, and electrorecording process applying a charge pattern, etc. Problems such as print quality

Active Publication Date: 2022-03-04
PRINT RITE UNICORN IMAGE PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, this process cartridge is usually a process cartridge suitable for jumping development, that is, there is no direct contact between the photosensitive drum and the developing roller, that is, there is a gap between the photosensitive drum and the developing roller, and the toner is often deposited between the photosensitive drum and the developing roller. The rollers bounce back and forth, and the toner is difficult to transfer between the photosensitive drum and the developing roller, resulting in a large amount of toner remaining on the photosensitive drum
However, since this process cartridge does not have a cleaning blade, the toner remaining on the photosensitive drum cannot be effectively transferred to the charging roller. In the next developing cycle, the toner remaining on the photosensitive drum will be transferred to the paper , thereby affecting the print quality

Method used

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  • Processing box and electronic imaging equipment
  • Processing box and electronic imaging equipment
  • Processing box and electronic imaging equipment

Examples

Experimental program
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Effect test

no. 1 example

[0057] see Figure 1 to Figure 3 , The process cartridge of this embodiment includes a box body 1, a photosensitive drum 2, a charging roller 3, a developing roller 4, a powder feeding roller 8, an agitating frame 5, a cleaning member 6 and a powder knife 9. The cleaning member 6 is a cleaning brush.

[0058] The box body 1 includes a powder bin frame 11 , a first cover part 12 , a second cover part 13 , a conductive end cover 111 and a driving end end cover 112 , and the first cover part 12 and the powder bin frame 11 enclose an accommodating cavity 101 , the second cover part 13 and the powder bin frame 11 enclose the toner containing chamber 102, the powder bin frame 11 is provided with a partition wall 14, the partition wall 14 and the second cover part 13 are integrally formed, and the partition wall 14 is provided with The communication opening 141 , the accommodating chamber 101 and the toner accommodating chamber 102 are separated by the partition wall 14 and communic...

no. 2 example

[0074] As a description of the second embodiment of the process cartridge according to the present invention, only the differences from the first embodiment of the process cartridge described above will be described below.

[0075] see Figure 4 to Figure 7 , the box body 21 further includes a frame body 214 and a third cover part 215 of the powder replenishment bin. The toner supply bin frame body 214 is connected above the second cover part 213, the toner replenishment bin frame body 214 and the third cover part 215 enclose the toner replenishment bin 203, the toner replenishment bin 203 is located above the toner accommodating chamber 202 and The laser channel 216 communicates with the toner storage cavity 202 and is located between the second cover part 213 and the frame body 214 of the toner supply bin. The first cover member 212 and the third cover member 215 are arranged along the width direction W of the case body 21 .

[0076] Two powder filling ports 2131 are opene...

no. 3 example

[0080] As a description of the third embodiment of the process cartridge according to the present invention, only the points of difference from the above-mentioned first embodiment of the process cartridge will be described below.

[0081] In this embodiment, the cleaning brush is made of fibers with conductive carbon black. The cleaning member is electrically connected to the charging roller electrode.

[0082] The cleaning member can conduct electricity, which can change the electrical properties of the toner. For example, under normal circumstances, when the photosensitive drum is exposed and developed, the toner on the surface of the photosensitive drum is charged negatively, but the electrical property may change during the working process. If it is not treated, the toner in the developing chamber will form agglomerates due to the attractive force between the positive and negative charges after the waste toner enters the developing chamber, which will affect the printing....

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PUM

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Abstract

The invention provides a processing box and electronic imaging equipment, the processing box comprises a box body, and the box body is provided with an accommodating cavity; the developing roller is rotatably mounted in the accommodating cavity; the photosensitive drum is rotatably mounted in the box body; the charging roller is in contact with the peripheral surface of the photosensitive drum, and the charging roller and the developing roller are arranged at an interval; the cleaning component is located in the containing cavity, the cleaning component is installed in the box body and extends in the direction parallel to the charging roller, and the cleaning component makes contact with the peripheral face of the charging roller; the developing roller is in contact with the outer peripheral surface of the photosensitive drum. The electronic imaging equipment comprises a machine body and is detachably provided with the processing box. According to the invention, the utilization rate of the carbon powder can be improved, abrasion to the photosensitive drum is reduced, and the service life of the processing box is prolonged.

Description

technical field [0001] The present invention relates to the field of electronic image forming apparatuses, in particular, to a process cartridge and an electronic image forming apparatus having the process cartridge. Background technique [0002] An electrophotographic imaging forming device, such as a laser printer, is a device that uses the principle of electrophotography to form an image on an image forming medium (such as paper) at least through the processes of charging, exposing, developing, transferring, fixing, and cleaning . The devices used on imaging devices to print consumable materials are generally referred to as process cartridges, process cartridges, or printing supplies. [0003] Generally, the toner used for developing is provided by the process cartridge, and when the toner in the process cartridge is used up, a new process cartridge is replaced. An existing processing box includes a powder bin, a stirring frame, an upper frame, a cleaning blade and a ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/08G03G21/10G03G21/00
CPCG03G15/0808G03G21/0035G03G21/10G03G21/0005G03G15/0225G03G21/007G03G21/1633G03G21/1814G03G2221/1606
Inventor 杨晓锋易新华贺良梅郑玉霞苏健强
Owner PRINT RITE UNICORN IMAGE PROD CO LTD