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| Number | Title | Issue Date |
| 8145098 | Image forming apparatus including shutter device An image forming apparatus disclosed includes a body, a cover to open and close an opening of the body, a plurality of photosensitive members provided in the body, a light scanning device to irradiate a light beam to the plurality of photosensitive members, the ligh... | 03/27/2012 |
| 7349652 | Apparatus and method for cleaning residual toner from drums in image forming apparatus An apparatus and method for cleaning a plurality of drums in an image forming apparatus includes applying a first bias to each of a plurality of disturbing members, each disturbing member associated with a corresponding drum of a plurality of drums. While performing... | 03/25/2008 |
| 7306216 | Power transmitting apparatus, power switching apparatus, and driving apparatus of multi-function machine using the same A driving apparatus of a multi-function machine includes a scanner unit scanning data recorded on a sheet of document and a document transport part to transport the sheet of document. A printer unit prints data on a sheet of paper for an output and includes a carrie... | 12/11/2007 |
| 7292809 | Drive unit, method of producing drive unit, running body moving unit, image reading apparatus, and imaging apparatus A drive unit including a drive shaft, a drive pulley attached to the drive shaft, and a drive wire driven by the drive pulley so as to move a movable body. The drive pulley is formed by press working or rolling. ... | 11/06/2007 |
| 7292724 | Image processing apparatus and image processing method The present invention provides an image processing apparatus on which an image forming engine for forming a full-color image by using color materials corresponding to data of color tones on the basis of C (cyan), M (magenta), Y (yellow), and K (black) data is mounte... | 11/06/2007 |
| 7260334 | Method for controlling a printer or copier using a toner mark band and reflex sensor working according to the triangulation principle A method and device controls a printer or copier to generate a plurality of marks that are assembled into a coherent marking band that is then inked by the toner. A sensor measures the marking band. The printer or copier are controlled based on the output of the sen... | 08/21/2007 |
| 7224915 | Image forming apparatus and image forming unit An image forming apparatus comprising: an image forming section and a residual toner amount detection unit. The image forming section includes a photosensitive member, a charging unit, an exposure unit, a developing unit, and a toner storage unit. The residual toner... | 05/29/2007 |
| 7221495 | Thin film precursor stack for MEMS manufacturing This invention provides a precursor film stack for use in the production of MEMS devices. The precursor film stack comprises a carrier substrate, a first layer formed on the carrier substrate, a second layer of an insulator material formed on the first layer, and a ... | 05/22/2007 |
| 7164520 | Packaging for an interferometric modulator A package is made of a transparent substrate having an interferometric modulator and a back plate. A non-hermetic seal joins the back plate to the substrate to form a package, and a desiccant resides inside the package. A method of packaging an interferometric modul... | 01/16/2007 |
| 7149005 | Depth of field control device A depth of field control device is provided. The depth of field control device is installed on an automatic document feeder having a scan glass surface. The depth of field control device comprises a plate member having at least one protrusion on its front side and a... | 12/12/2006 |
| 7038819 | Depth of field adjustment device and method for an automatic document feeder The present invention relates to a depth of field adjustment device and method for an automatic document feeder. The automatic document feeder has a guiding groove for placing an object to be scanned. The guiding groove has a scanning window for providing image pick... | 05/02/2006 |
| 6965119 | Method and apparatus of calibrating multi-position SLM elements The present invention relates to a method for calibrating elements in a spatial light modulator (SLM) as a function of an applied element control signal. A plurality of elements are calibrated simultaneously. A beam of electromagnetic radiation is projected onto at ... | 11/15/2005 |
| 6821694 | Image forming method, image forming apparatus, process cartridge and photoconductor An image forming method wherein a surface of a photoconductor having a photoconductive layer provided on a conductive support is scanned at least along a main scanning direction of the photoconductor with a writing light beam having a wavelength of λ μm and a spot... | 11/23/2004 |
| 6545693 | Exposing unit having first and second fixing members To provide an exposing apparatus including a first fixing member which positions and fixes a vicinity of an exposing unit on a side of a photosensitive body, and a second fixing member which fixes a vicinity of an end of the exposing unit on a side opposi... | 04/08/2003 |
| 6521388 | Electrophotographic image forming apparatus, and photoreceptor therefor An image forming apparatus including a photoreceptor including a photosensitive layer on a surface of an electroconductive substrate and a light irradiator configured to irradiate the photoreceptor with a light beam having a wavelength λ represented in u... | 02/18/2003 |
| 6456366 | Image exposure apparatus In accordance with the present invention, there is provided an image exposure apparatus whose installation area and height are reduced and which enables smooth conveying of a printing plate. In this image exposure apparatus, a cassette accommodating print... | 09/24/2002 |
| 6449450 | Image forming apparatus In a normal print mode in which the image of an original document D is printed on a copying paper with the image of the original document not reversed, the direction of sub-scanning executed by a read section is set to a normal direction (regular directio... | 09/10/2002 |
| 6440625 | Method of electrostatic recording on a cylindrical photoreceptor with dielectric coating and an electrophotographic duplicating apparatus A method of electrostatic recording on a cylindrical photoreceptor with a dielectric coating of a photosemiconductor layer is presented. The method includes such main operational steps as charging, exposure and illumination of the photoreceptor, wherein t... | 08/27/2002 |
| 6442361 | Variable speed image formation apparatus and method A method and apparatus for reducing image unevenness due to light emission of a transfer element. Namely, when a printing speed is changed to 1/2n (n is a positive integer), a SLED head controller repeats a cycle to perform exposure control for... | 08/27/2002 |
| 6311033 | Electrophotographic exposure and development arrangement In the embodiment disclosed in the specification, an electrophotographic exposure and development arrangement has a flexible transparent photoreceptor belt driven between two support rollers and along four printing stations at each of which the photosensi... | 10/30/2001 |
| 6240269 | Image forming apparatus having a photosensitive member of amorphous silicon base and system for exposing and charging the photosensitive member An electrophotographic process is implemented with improved ghost memory and with high chargeability even under circumstances of increased process speed or compactified structure and the electrophotographic process forms an image on a photosensitive membe... | 05/29/2001 |
| 6191867 | Method and device for calibrating an imaging apparatus A method and apparatus for calibrating a halftone imaging system is described which automatically compensates for drifts in overall system performance as well as for any substantial change in the imaging parameters. Calibration is achieved by optimizing t... | 02/20/2001 |
| 6166826 | Printing apparatus, printing method, and printing system A printing apparatus is disclosed which comprises print means for printing input print data on a print recording medium, the print means driven by the input print data, storage means for storing the print data, storage control means for determining whethe... | 12/26/2000 |
| 6085063 | Digital image forming apparatus A document scanning unit is disposed so that a scanning direction of a document on a table glass by a lamp unit is equal to a longitudinal direction of a photoreceptor drum provided in a mechanism unit. A face-down tray is mounted above the document scann... | 07/04/2000 |
| 6075959 | Discharge of photoreceptors An electrophotographic printing machine has a photoreceptive member. The photoreceptive member is charged and then exposed with a light image representation to form a latent image. An electric field, less than that required to re-charge the photoreceptive... | 06/13/2000 |
| 6055400 | Multicolor image forming apparatus In a multicolor image forming apparatus, in order to form two pages of toner images on a transfer belt, a plurality of images are written during a first interimage period. After writing of the plurality of images, a development unit is rotated during a su... | 04/25/2000 |
| 6041204 | Color image forming apparatus with an organic photoconductor In a color image forming apparatus provided with a photoreceptor having a rotatable peripheral surface; plural sets of a charging device, an imagewise exposure device, and a developing device, each set of the plural sets is provided separately from other ... | 03/21/2000 |
| 6041198 | Dual resolution scanner The focused light incident from the light source on the document to be scanned has two different lengths of light path. The shorter light path is incident on the document near the light source. The longer light path is incident on the document away from t... | 03/21/2000 |
| 5886728 | Image forming apparatus having a plurality of exposure devices which are radially arranged on a common supporting member with respect to a rotation axis of an image forming body An image forming apparatus has an image forming body which is rotatable in a subsidiary scanning direction. A plurality of imagewise exposure devices for imagewise exposing the image forming body are arranged to face the image forming body and to be align... | 03/23/1999 |
| 5879846 | Image forming process and apparatus A developing agent comprises an insulative toner and a conductive carrier, and the tensile rupture stress of the insulative toner powder layer is 0.1-1 g wt/cm2. The insulative toner used is insulative magnetic toner to which hydrophobically tr... | 03/09/1999 |
| 5878311 | Optical module An optical module is intended to be assembled in an optical apparatus, and includes a chassis member having an opening therein. A mirror unit is provided in the opening of the chassis member, such that a lower part of the mirror unit protrudes from a lowe... | 03/02/1999 |
| 5842088 | Method of calibrating a spatial light modulator printing system A method for calibrating a printing system using a spatial light modulator. The spatial light modulator is an array of individually activated elements, all of which are set in a predetermined state, such as the ON state. Light is then directed onto the ar... | 11/24/1998 |
| 5749025 | Document-exposing and -scanning apparatus A document-exposing and -scanning apparatus designed so that air is blown to act on air-receiving surfaces of an exposing and scanning device through an air duct device placed opposite thereto, to subject the exposing and scanning device to low-friction r... | 05/05/1998 |
| 5729269 | Exposure device utilizing LEDs each having a plurality of luminescence portions An image forming apparatus is provided with a photoreceptor, and an exposure device for exposing the photoreceptor based on image data so as to form an electrostatic latent image on the photoreceptor. The exposure device has a plurality of light emitting ... | 03/17/1998 |
| 5699101 | Article for cooling a sheet of thermally-processed material A cooling article includes a plate positioned adjacent the exit of a thermal processor. The plate has a surface for receiving a sheet of thermally-processed material such that the sheet of thermally-processed material moves along the surface. A first regi... | 12/16/1997 |
| 5669048 | Exposure device having a movable light-attenuating filter for controlling an amount of exposure light and exposure method thereof An exposure device which scans and exposes a photosensitive material at low cost and with an appropriate amount of light. In a state in which the original is moved, light adjusted by a light-adjusting filter is transmitted through a light-attenuating filt... | 09/16/1997 |
| 5576810 | Image forming method An electrophotographic image forming method including a toner image transfer step and eliminating an independent step for cleaning transfer residual toner is operated without causing ghost images and with good gradation and dot reproducibilities. In the m... | 11/19/1996 |
| 5532812 | Apparatus for forming a copy of an original image on a sheet of paper An image forming apparatus includes a plurality of image forming units each having a photoconductive drum for forming a latent image and a developing device for developing the latent image, for providing different-color developed images, an exposing devic... | 07/02/1996 |
| 5473413 | Simplified process and apparatus for making plates used in printing A simplified process for making plates used in printing, including forming a chemically positive copy on a transparent or translucent sheet-like structure with the lines thereon being constituted of artificial powder without going through the steps of pho... | 12/05/1995 |
| 5274424 | Image forming apparatus controlled according to smallest non-zero toner density In an image forming apparatus with use of electrophotographic process, a plurality of toner images are formed on a photoconductor by changing stepwise a predetermined operating parameter such as light intensity of laser beam or the grid potential of sensi... | 12/28/1993 |
