Image processing system, toner and processing cartridge

A technology for processing cartridges and toners, which is applied in the direction of electric recording technology using charge patterns, equipment for electric recording technology using charge patterns, developer, etc., which can solve side effects, poor life of fixing parts, and inability to simultaneously Satisfaction and other issues

Inactive Publication Date: 2009-06-17
RICOH KK
View PDF8 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The internal temperature of the image forming device increases, causing side effects;
[0006] (2) The life of the fixing member deteriorates;
[0007] (3) The reduction of energy is impossible to achieve
However, this toner also cannot satisfy both good low-temperature fixing properties and anti-filming properties, and in particular, the minimum fixing temperature with abrasion resistance becomes higher with time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image processing system, toner and processing cartridge
  • Image processing system, toner and processing cartridge
  • Image processing system, toner and processing cartridge

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0186] The preparation method of the toner is not particularly limited. For example, the toner can be prepared by the following methods: melt kneading pulverization method; polymerization method; polyaddition reaction method (using a prepolymer having an isocyanate group); melt spray method; and dissolving the toner components in a solvent , and then remove the solvent, and then pulverize the toner components. Among these methods, the following methods are preferably used: melt kneading pulverization method; polymerization method (for example, suspension polymerization method, emulsion coagulation polymerization method) in which the monomer component includes a specific crystalline polymer and can be directly polymerized in an aqueous medium monomers; a polyaddition method in which the toner components include specific crystalline polymers and prepolymers with isocyanate groups that can be directly extended and / or crosslinked with amines in an aqueous medium; And a method of ...

Embodiment 1

[0238] (preparation of toner)

[0239] Mix the following ingredients with a mixer:

[0240] Crystalline polyester resin (1) 35 parts

[0241] 65 parts of amorphous polyester resin (B)

[0242] 5 parts polypropylene wax

[0243] (with a melting point of 153°C)

[0244] Charge control agent 2 parts

[0245] (Metal salts of salicylic acid derivatives)

[0246] Coloring agent 6 parts

[0247] (copper phthalocyanine blue pigment)

[0248] Stearamide compound 5 parts

[0249] (with a melting point of 151°C)

[0250] Melt-kneading was carried out using a twin-shaft kneader mixture under the following preparation conditions:

[0251] Kneading temperature: 140°C

[0252] Extrusion speed: 10kg / hour

[0253] Shaft clearance: 2mm

[0254] Standing time before crushing: 48 hours

[0255] The kneaded mixture was pulverized and classified. Mother toner particles (volume average particle diameter of 7.6 μm) were thus prepared.

[0256] Next, 100 parts of mother toner particles ...

Embodiment 2

[0315] The procedure of Example 1 for producing toner (1) was repeated except that the amount of the stearylamide compound (having a melting point of 151° C.) was changed from 5 parts to 1 part.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides an imaging forming device that includes a fixing device for fixing a toner image on a recording medium. The fixing device includes a hear roller and an oil applying device. The oil applying device is used for applying silicon oil on the heat roller. The image forming device has a system rate 500-1700 mm / sec and uses toner. The toner includes adhesive resin, crystal vibrin and amorphism resin; aliphatic series sulfonamide compound; and toner. Ratio of the height (W) showing aliphatic series sulfonamide compound that is obtained in absorption spectrum by ARR method of infrared spectrophotometer with Fourier to W / R showing amorphism resin height (R) is 0.010-0.040.

Description

technical field [0001] The present invention relates to an image forming apparatus for electrophotography. The present invention also relates to a toner and a process cartridge for an image forming apparatus. Background technique [0002] In the field of electrophotography, high-speed printing and high-quality images have recently been increasingly required. In particular, toner fixability, which is one of important factors affecting image quality, deteriorates se image forming speed (ie, system speed of an image forming apparatus) increases toner fixability. Therefore, it is very difficult to achieve good fixability and high-speed printing at the same time. [0003] The unfixed toner image can be firmly fixed on the paper by applying heat and pressure in the fixing device, and when the system speed is increased, the unfixed toner image on the paper may not get enough heat. As a result, the toner image is only weakly fixed and tends to peel off from the paper. [0004] I...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/20G03G9/08G03G9/087G03G21/18
Inventor 朱冰增田稔岩本康敬设乐泰祯
Owner RICOH KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap