Unlock instant, AI-driven research and patent intelligence for your innovation.

Processing cartridge, development device and imaging device comprising the same

A technology for processing cartridges and developers, which is applied in the direction of electrorecording process applying charge pattern, equipment for applying charge pattern electrorecording process, electrorecording technique, etc. Ensure electrification performance and other issues

Inactive Publication Date: 2009-09-09
RICOH KK
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, with the prior art, as in the initial case where the pre-durable toner with high chargeability is overcharged, especially in a low-temperature and low-humidity environment, the overcharged well-charged toner does not pass through the developing roller. renews and leads to the formation of thin films
Therefore, the transfer volume increases
Also with the latter technique, since another material is stacked on the material showing good triboelectrification properties, there is no friction between the material of the lower layer and the actual toner, and thus the triboelectrification depends on the material of the upper layer and cannot Ensuring sufficient electrification performance

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
  • Processing cartridge, development device and imaging device comprising the same
  • Processing cartridge, development device and imaging device comprising the same
  • Processing cartridge, development device and imaging device comprising the same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0027] figure 1 The configuration of the main components of the image forming apparatus including the developing device and the process cartridge unit according to the present embodiment is shown. Each process cartridge unit 1 is constituted by integrally connecting the photosensitive drum 2, the charging roller 3, the developing device 4, and the cleaning device 5. This configuration also allows each process cartridge unit to be replaced by removing its respective stopper.

[0028] The photosensitive drum 2 rotates in the direction of the arrow at a peripheral speed of 150 mm / s. The charging roller 3 is pressure-welded to the surface of the photosensitive drum 2 and is driven to rotate by the rotation of the photosensitive drum 2. A predetermined bias voltage is applied to the charging roller 3 by a high-voltage power supply (not shown) and the surface of the photosensitive drum 2 is charged to -500v. The exposure device 6 performs photographic exposure of the image information...

no. 2 approach

[0047] This embodiment uses such Figure 7 The layer thickness adjustment element 710 shown in. The layer thickness adjusting member 710 uses an SUS thin plate and is made by bonding a sheet material 712 to the surface of the SUS thin plate. Therefore, by bonding the resin material on the sheet, the triboelectric performance of the toner and the conveyance performance of the toner can be controlled. In addition, the plate-shaped material 712 is passed such as Figure 8 The base layer 801 and the surface layer 802 shown in FIG. The base layer 801 uses polycarbonate with good adhesion to urethane acrylate and has a thickness of 100 μm. This embodiment illustrates an example, but a urethane-based or acrylic-based resin material may also be selected.

[0048] As described above, the present invention is a process cartridge, which includes: a developer carrier, the developer carrier uses a non-magnetic one-component developer and is rotatably arranged near the latent image carrier or in...

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 present invention discloses a processing cartridge, development device and imaging device comprising the same, attached to the surface of the supply roller to the imaging supplies and coating to the developing roller surface. The developing roller is the elastic rubber layer covered roller and the elastic rubber layer has the hardness capable of preventing the toner from deterioration, the deterioration imposed regulatory element in the adjacent thickness of the adjacent part of the pressure on the concentration of lead. The surface roughness Ra is set between 0.3 to 2.0 mum, the necessary toner fixed by the surface. Developing bias applied, taking into account, the said elastic rubber layer resistance value set at 10 [3] to 10 [10] omega. Regulatory element described in thickness to the thickness of the top of the regulatory element into the state imaging device imaging device fixed to the above. The sheet is mainly made of metal such as SUS or phosphor bronze, and the sheet serves as the layer thickness regulating member after bending treatment.

Description

Technical field [0001] The present invention relates to an imaging device, such as a photocopier, a facsimile device, or a printer that performs an electrophotographic process, and more specifically, to a process cartridge used in a developing device of the imaging device and a process cartridge using the process cartridge Developing device. Background technique [0002] When a non-magnetic one-component developer and a regulating element are particularly used in the developing device of this type of imaging device, it is important not only to reduce the pressure on the toner as much as possible, but also to establish a suitable toner The amount of toner conveyed and the toner is fully charged. [0003] For example, Japanese Patent Application Publication No. H11-1526 (hereinafter referred to as prior art 1) discloses a technique that performs mirroring at a sliding contact portion of the regulating member that makes sliding contact between the regulating member and the developin...

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): G03G15/08
CPCG03G15/0812
Inventor 足立知哉小川嘉子
Owner RICOH KK