Processing box

A processing box and casing technology, applied in the field of processing boxes of laser printers, can solve problems such as affecting printing quality, inability to transfer toner, and low toner electric field force

Inactive Publication Date: 2010-11-17
PRINT RITE UNICORN IMAGE PROD CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] However, the voltage value loaded by the laser printer on the powder feeding roller is fixed, which often causes the voltage loaded on the powder feeding roller to be too low, resulting in insufficient electric field force of the toner in the electric field, or unable to neutralize the positively charged polar toner
If the electric field force of the electric field where the carbon powder is located is insufficient, the carbon powder cann

Method used

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Embodiment Construction

[0037] The process cartridge according to the present invention has a housing made up of a drum frame, a toner hopper frame and two end caps, and the toner hopper frame has a toner hopper containing toner, which are the same as the existing process cartridges.

[0038] Inside the casing, the process box is equipped with a powder feeding roller, a developing roller, a powder outlet knife, a charging roller, a photosensitive drum and a cleaning blade. The structures of the above components are as follows: Figure 5 shown.

[0039] The powder feeding roller 51 has a mandrel 52 made of metal, and the mandrel 52 is wrapped with an elastic layer 53 . Similarly, the developing roller 56 also has a mandrel 57 wrapped with an elastic layer 58 , and one end of the mandrel 57 is connected to a conductive sheet 59 to receive the voltage of the laser printer. The powder feeding roller 51 and the developing roller 56 can provide the developing bias required for developing, so that the carbon...

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PUM

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Abstract

The invention provides a processing box comprising a casing, wherein the casing is provided with a carbon powder cabin for accommodating carbon powder; a photosensitive drum, a charging roller for supplying power to the photosensitive drum, a developing roller for delivering the carbon powder to the photosensitive drum, a powder delivery roller for delivering the carbon powder to the developing roller, and a doctor blade for adjusting the thickness of carbon powder layers on the developing roller, wherein one end of the charging roller is connected with a conducting member, and the conducting member and the powder delivery roller are connected by a voltage reducer. An applicable voltage reducer can be selected according to the characteristics of the carbon powder loaded in the processing box and the powder delivery roller, polarity carbon powder with positive electricity is effectively neutralized and eliminated, and the powder delivery roller is ensured to form enough electric field force so that words and figures formed on paper are black enough and the print quality is improved.

Description

technical field [0001] The invention relates to a printing consumable, especially a processing box for a laser printer. Background technique [0002] Laser printers are common printing devices that provide great convenience for modern offices. Existing laser printers mostly use a process box detachably installed in the laser printer to provide toner for printing. During the printing process, the toner loaded in the process box is transferred on the paper as the printing medium to form the pattern and text. [0003] Existing one class processing box has the toner storehouse that holds carbon powder and the waste toner storehouse that holds waste carbon powder, and the structure of this type process box is as follows: figure 1 shown. [0004] see figure 1 , The process box has a shell 1, and the shell 1 is provided with a handle 15, which is convenient for the user to grasp. [0005] see figure 2 , The housing 1 of the process cartridge is composed of a drum frame 11, a...

Claims

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Application Information

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IPC IPC(8): G03G21/18
CPCG03G15/0283G03G21/1867G03G2221/166
Inventor 高瑞祺杨晓锋周宏辉
Owner PRINT RITE UNICORN IMAGE PROD CO LTD
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