| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 399345000 | Retractable cleaning arrangement | 7 |
| 20080205951 | IMAGE FORMING APPARATUS - An image forming apparatus includes a photosensitive drum, an optical unit provided below the photosensitive drum and including a cover glass for transmitting light emitted toward the photosensitive drum, and a cleaning member configured to clean a surface of the cover glass. The cleaning member includes a cleaning sheet configured to move foreign substances on the surface, and a wiping member configured to wipe foreign substances from the surface. The cleaning sheet and the wiping member move in contact with the surface of the cover glass when the cleaning member cleans the surface. The wiping member moves in contact with a portion of the surface of the cover glass after the cleaning sheet moves in contact with the portion. Accordingly, the cover glass can be reliably cleaned even when an unexpectedly large number of foreign substances that vary in particle size and shape adhere to the cover glass. | 08-28-2008 |
| 20090035036 | Image forming apparatus - An image forming apparatus includes an image carrier; a charger that electrically charges the image carrier; an image forming section that forms an electrostatic latent image on the image carrier and develops the electrostatic latent image; a transferring-fixing section that transfers the image from the image carrier and fix the image onto a recording medium; a cleaning member; and a cleaning member moving section. The cleaning member cleans an unnecessary substance adhering onto a surface of the image carrier by abutting against the surface of the image carrier, and is capable of moving between an abutment position and a separation position where the cleaning member is separated from the image carrier. The cleaning member moving section moves the cleaning member from the separation position to the abutment position in accordance with a surface resistance of the surface of the image carrier. | 02-05-2009 |
| 20100080635 | PHOTOSENSITIVE CARTRIDGE AND IMAGE FORMING APPARATUS - A photosensitive cartridge includes a frame; a photosensitive drum; a drum gear; a cleaning roller; and a cleaning gear, which is provided at one end portion of the cleaning roller, which meshes with the drum gear, and which rotates integrally with the cleaning roller by a force from the drum gear. The cleaning roller is swingable around a swing axis extending parallel to a rotation axis of the cleaning roller. The swing axis is provided at a side that is opposite to the photosensitive drum with respect to a straight line extending in an input direction of a force from a tooth surface of the drum gear through a meshing position between the cleaning gear and the drum gear. The frame includes a restricting face, which extends in a direction perpendicular to the input direction, and which restricts movement of the cleaning gear in the input direction. | 04-01-2010 |
| 20100226702 | Hard Image Forming Apparatuses and Methods - Hard image forming apparatuses and methods are described. According to one arrangement, a hard image forming apparatus includes an imaging member comprising a surface, a development system configured to provide a marking agent to the surface of the imaging member to form developed images upon the surface of the imaging member which correspond to latent images formed using the surface of the imaging member, and a transfer system configured to transfer the developed images from the surface of the imaging member to media. The arrangement further includes a contamination removal device configured to remove contamination material from the surface of the imaging member, and a control system configured to control the contamination removal device to contact the surface of the imaging member to remove the contamination material from the surface of the imaging member at a first moment in time and to space the contamination removal device from the surface of the imaging member at a second moment in time where the contamination removal device does not remove the contamination material from the surface of the imaging member. | 09-09-2010 |
| 20110142512 | IMAGING UNIT, DEVELOPING UNIT, PHOTOSENSITIVE UNIT, AND IMAGE FORMING APPARATUS - Provided is an imaging unit, including: a developing unit having a developing roller and a first abutting member; a photosensitive unit having a photosensitive drum and a second abutting member, a gap between the photosensitive drum and the developing roller being set constant by bringing the first abutting member into abutting contact with the second abutting member; a cleaner configured to be disposed in a space between the first and the second abutting members in a separate state where the first abutting member is spaced away from the second abutting member; and a displacement unit configured to displace the cleaner from the space as the first abutting member is brought close to the second abutting member. In the displacement, the displacement unit causes the cleaner to slide on an abutting surface of at least one of the first and the second abutting members. | 06-16-2011 |
| 20110236094 | IMAGE FORMING APPARATUS WITH CLEANING DEVICE AND CLEANING METHOD - In an image forming apparatus including a cleaning device having a cleaning blade arranged so as to make contact with and separate from a cleaned surface, an occurrence of excessive cutting when the cleaning blade makes contact with the cleaned surface is prevented. The image forming apparatus includes the cleaning blade for making contact with and separating from the cleaned surface and scraping off toner adhered onto the cleaned surface and a regulation unit for regulating a movement of the cleaning blade in the direction of contact with the cleaned surface up to a position where a pressing force to the cleaned surface by the cleaning blade does not exceed a predetermined pressing force. | 09-29-2011 |
| 20120224899 | ELECTROPHOTOGRAPHIC PRINTER AND CLEANING SYSTEM - Cleaning systems for an electrostatic imaging member and printers having cleaning systems are provided. In one aspect, a cleaning system has a wiper, a mounting holding the wiper so that an extension length of the wiper extends from the mounting and a frame positioning the mounting relative to the electrostatic imaging member so that the wiper extends along a holding angle toward the electrostatic imaging member and so that the mounting is separated from the electrostatic imaging member by an extension distance along the holding angle that is less than the extension length with the wiper resiliently bending to fit within the extension distance to define a working angle. The extension distance is within a range of extension distances that cause the working angle to be within a range of working angles that are greater than a range of working angles associated with a greater range of extension distances. | 09-06-2012 |
