Patent application number | Description | Published |
20090279930 | PROTECTIVE MATERIAL AND IMAGE FORMING APPARATUS USING THE PROTECTIVE MATERIAL - A protective material block including a metal soap, wherein the surface of the protective material block has an X-ray diffraction pattern wherein a ratio (P | 11-12-2009 |
20090285613 | IMAGE-BEARING MEMBER PROTECTING AGENT, PROTECTIVE LAYER FORMING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - To provide an image-bearing member protecting agent used for forming a protective layer on a surface of an image bearing member, the agent including: a compressed powder body formed by pressurizing a powder containing at least a fatty acid metal salt (A) and an inorganic lubricant (B), wherein a ratio Db/Da of an average particle diameter Db of the inorganic lubricant (B) to an average particle diameter Da of the fatty acid metal salt (A) satisfies 011-19-2009 | |
20090290919 | IMAGE-BEARING MEMBER PROTECTING AGENT, PROTECTIVE LAYER FORMING DEVICE, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - To provide an image-bearing member protecting agent used in an image forming method which includes applying or attaching the agent onto a surface of an image bearing member, the agent including: a fatty acid metal salt (A), and an inorganic lubricant (B), wherein the inorganic lubricant (B) has an average particle diameter of 0.1 μm to 14 μm. | 11-26-2009 |
20090290920 | IMAGE FORMING APPARATUS AND PROTECTIVE AGENT BLOCK - An image forming apparatus including an image bearing member that bears a latent electrostatic image on the surface thereof, a charging device that uniformly charges the surface of the image bearing member, an irradiation device that irradiates the surface of the image bearing member to form the latent electrostatic image thereon, a development device that develops the latent electrostatic image on the surface of the image bearing member with toner to form a toner image thereon, a transfer device that transfers the toner image to a transfer body, a cleaning device including a cleaning blade that removes residual toner remaining on the surface of the image bearing member with the cleaning blade, a protective agent application device that applies a protective agent containing zinc stearate and zinc palmitate to the surface of the image bearing member, wherein the ratio of the zinc stearate and the zinc palmitate is from 66:34 to 40:60 by weight. | 11-26-2009 |
20090304423 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An image forming apparatus including a charging unit configured to charge a surface of an image bearing member utilizing discharge generated by applying a voltage containing an alternating current component to a charging member disposed in contact with or close to the image bearing member, so that a latent electrostatic image is formed on the image bearing member; a developing unit configured to develop the latent electrostatic image formed on the image bearing member using a toner; a cleaning unit configured to clean the surface of the image bearing member using a blade; a protecting agent applying unit configured to rub and scrape a protecting agent by a brush roller and apply the protecting agent to the surface of the image bearing member; and a protecting agent charging member configured to charge the protecting agent, the member being disposed between the protecting agent applying unit and the charging unit. | 12-10-2009 |
20090311014 | IMAGE-BEARING MEMBER PROTECTING AGENT, PROTECTIVE LAYER FORMING DEVICE, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - To provide an image-bearing member protecting agent used in an image forming method which includes applying or attaching the agent onto a surface of an image bearing member, the agent including: a fatty acid metal salt and boron nitride, wherein the boron nitride includes secondary particles composed of aggregated fine crystals, and wherein the crystals have an average primary particle diameter of 0.1 μm to 1.0 μm and an average secondary particle diameter of 3.0 μm to 14.0 μm. | 12-17-2009 |
20100034560 | Image-bearing member protecting agent, protective layer forming device, image forming method, process cartridge and image forming apparatus - The present invention provides an image-bearing member protecting agent containing a fatty acid metal salt, and boron nitride, wherein the boron nitride has an oxygen content of 0.4% by mass to 4.5% by mass, and wherein the image-bearing member protecting agent is applied or attached onto a surface of an image bearing member. | 02-11-2010 |
20100054829 | Protective layer forming device, image forming apparatus and process cartridge - A protective layer forming device including an image-bearing member protecting agent which contains a fatty acid metal salt and an inorganic lubricant, a protecting agent supply member configured to apply a surface of the image bearing member with the image-bearing member protecting agent, and a leveling member configured to level off the image-bearing member protecting agent applied on the surface of the image bearing member, wherein the leveling member serves as a cleaning blade having a ridge part with an obtuse angle, which comes into contact with the surface of the image bearing member in a direction counter to the rotation of the image bearing member. | 03-04-2010 |
20100183972 | Image-bearing member protecting agent, protective layer forming device, image forming method, image forming apparatus, and process cartridge - An image-bearing member protecting agent including: a hydrophobic organic compound (A); an inorganic lubricant (B); and inorganic fine particles (C), wherein each of the inorganic fine particles (C) has a specific surface area of 2.0 m | 07-22-2010 |
20100209143 | Image forming apparatus and process cartridge - An image forming apparatus includes an image bearing member configured to bear a toner image, a protective layer forming device configured to apply a protective agent to a surface of the image bearing member with a brush-shaped protective agent applicator, and a surface roughness maintainer configured to maintain a surface roughness Ry of a contact surface of the protective agent with the brush-shaped protective agent applicator at 500 μm or less. The protective agent is a solid material in which a granular material comprising a fatty acid metallic salt is compressed. | 08-19-2010 |
20100239309 | Image-bearing member protecting agent, protective layer forming device, image forming method, image forming apparatus, and process cartridge - An image-bearing member protecting agent including a fatty acid metal salt, and an inorganic lubricant, wherein the image-bearing member protecting agent is a solid formed by compression molding a particulate or granulated raw material containing the fatty acid metal salt and the inorganic lubricant, and applied or adhered to a surface of an image bearing member, and wherein the image-bearing member protecting agent has a front surface which is a side of the image-bearing member protecting agent. to be used at the beginning, and a rear surface which is a side thereof to be left when most of the image-bearing member protecting agent is used up, and the image-bearing member protecting agent has a density decreasing from the front surface toward the rear surface. | 09-23-2010 |
20110008088 | Image forming method, image forming apparatus, and process cartridge - The image forming method includes applying a protective agent including a fatty acid metal salt to a surface of an image bearing member; forming an electrostatic latent image on the surface of the image bearing member; and developing the electrostatic latent image with a developer including toner and boron nitride to form a visual image. The image forming apparatus includes an image bearing member; a latent image forming device configured to form an electrostatic latent image on a surface of the image bearing member; developing device configured to develop the electrostatic latent image with a developer including toner and boron nitride to form a visual image on the surface of the image bearing member; and a protective agent applying device configured to apply a protective agent including a fatty acid metal salt to the surface of the image bearing member. | 01-13-2011 |