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Cleaning blade, and cleaning apparatus, process cartridge, and image forming apparatus using the same

A technology for cleaning scrapers and imaging devices, applied in electrography, optics, instruments, etc., can solve problems such as inability to maintain cleaning performance for a long time, increased torque of photoreceptor drive system, and increased friction coefficient

Inactive Publication Date: 2006-09-06
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the case where a contact type charging device and a cleaning blade are used in combination, there are problems in that the cleaning blade is worn, chipped, and curled due to an increase in the coefficient of friction, and the torque of the photoreceptor driving system is increased.
However, the material with low hardness is poor in abrasion resistance, which makes it unable to maintain excellent cleaning performance for a long time

Method used

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  • Cleaning blade, and cleaning apparatus, process cartridge, and image forming apparatus using the same
  • Cleaning blade, and cleaning apparatus, process cartridge, and image forming apparatus using the same
  • Cleaning blade, and cleaning apparatus, process cartridge, and image forming apparatus using the same

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specific example -

[0166] Next, together with the Figure 1 Specific examples of the cleaning blade, the image forming apparatus using the cleaning blade, and the cleaning apparatus of the present invention will be described in detail starting from the beginning.

[0167] figure 1 is a schematic diagram showing an example of the imaging device of the present invention, a so-called tandem type imaging device.

[0168] figure 1 Among them, 21 is a main body casing; 22, 22a to 22d are imaging engines; 23 is a belt assembly; 24 is a recording material supply box; 25 is a recording material conveying path; 30 is each photosensitive body unit; 34 is a cleaning device; 35, 35a to 35d are toner cartridges; 40 is an exposure unit; 41 is a unit case; 42 is a polygonal mirror; 51 is a primary transfer device; 52 is a secondary transfer device; 53 is a belt cleaning device; 61 is a paper feed roller; 62 is a paper pickup roller; 63 is a registration roller (resist roll); 66 is a fixing device; 67 is a pape...

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Abstract

The invention provides a cleaning blade, which realizes cleanness by contacting the surface of parts needing cleanness with the blade, and it is characterized in that the material of contact site of said cleaning blade and said parts surface satisfies at least the following inequality (1)-(3): inequality (1)3.92<=M<=29.4. 2;inequality 0<=alpha<=0.294; inequality (3)S>=250, ( in the inequality (1)-(3), M represents 100% modulus (MPa); alpha represents the ratio of stress variation (delta stress) to strain variation (delta strain) [delta stress / delta strain= (the stress under 200% degree of strain - the stress under 100% degree of strain) / (200-100) ] (MPa / %)in the rang of 100%-200% strain degree and in stress-strain curve; furthermore, S represents elongation at break (%)determined with JIS,K6251(using dumbbell-type the third test piece). The invention also provides a cleaning arrangement containing a cleaning blade, a processing box and an image-forming device.

Description

technical field [0001] The present invention relates to a cleaning blade for a copier for forming an image by electrophotography, a cleaning device using the cleaning blade, a process cartridge, and an image forming device. Background technique [0002] Generally, image formation by electrophotography or electrostatic recording is performed by forming an electrostatic latent image on an image bearing body such as a photoreceptor, developing the electrostatic latent image using a developer to form a toner image, and then applying The toner image is transferred and fixed onto the recording medium. A cleaning device is generally provided in an image forming apparatus using the above image forming method in order to clean the toner remaining on the image carrier after the toner image is transferred. [0003] Various types of cleaning devices are known, and generally, a blade cleaning method is used in many cases, in which a cleaning blade (usually using an elastic contact plate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G21/00G03G21/10
Inventor 小岛纪章田中公一重崎聪奥山浩江
Owner FUJIFILM BUSINESS INNOVATION CORP
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