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| Number | Title | Issue Date |
| 8145108 | Image forming apparatus An image forming apparatus includes: an image carrier; a transfer member transfers the image carried on the outer circumferential surface of the image carrier onto a recording medium; a holding member that holds, on an outer circumferential surface of the transfer m... | 03/27/2012 |
| 8145107 | Image forming apparatus and image forming method An image forming apparatus includes: a transfer belt to which an image is transferred; a belt tension roller around which the transfer belt is looped; a transfer roller that includes a shaft and a recessed portion which is formed in an axial direction of the transfe... | 03/27/2012 |
| 7302215 | Electrophotographic image forming apparatus having a separator to separate a printing medium from a transfer belt An electrophotographic image forming apparatus has a development unit with a photoconductor. A transport belt conveys a printing medium onto which a toner image is transferred from the photoconductor. A separator is disposed inside the transport belt, and is capable... | 11/27/2007 |
| 7283776 | Image forming apparatus The image forming apparatus includes a fixing device for heat fixing a toner image on a recording material, a discharge device for discharging the recording material on which the toner image is fixed by the fixing device; a blowing device for blowing air onto a lowe... | 10/16/2007 |
| 7123868 | Electrophotographic printing device having non-grounded electrically conductive layer An electrophotographic printing device including a toner-developer unit, a lighting device, a developer drum, a photoconductor, a transfer unit and an earthed charging device. The substrate to be printed is placed on a transport device and moved along the transfer u... | 10/17/2006 |
| 7088947 | Post processor inserter speed and timing adjust unit In the present invention an image-forming production system includes a marking engine. The marking engine outputs a plurality of printed sheets at a first speed. An inserter is connected to receive the plurality of printed sheets from the marking engine and insert a... | 08/08/2006 |
| 6916131 | Image forming device customizing the image to fit the paper length A tandem-type image forming device is provided which includes a plurality of photosensitive drums, a paper edge detecting section to detect a front edge and a rear edge of a sheet of paper, an exposure starting time calculating unit for each of a plurality of photos... | 07/12/2005 |
| 6729235 | Imaging apparatus and imaging drum having material clamp An imaging drum assembly is provided for use in an imaging apparatus for forming images on sheet material. The imaging drum assembly comprises a rotatable imaging drum having an outer surface adapted to attract sheet material to the imaging drum. A material clamp is... | 05/04/2004 |
| 6459475 | Fixing structure A chuck for detachably fixing an object to a rotatable base, the chuck comprising (a) a support detachably mountable to the base, (b) a clamp having opposite ends, the clamp being pivotally mounted to the support between the ends of the clamp, and (c) a r... | 10/01/2002 |
| 6449454 | Image forming apparatus An image forming apparatus includes an image forming portion for forming an image on a recording material; a recording material bearing member for bearing and conveying the recording material toward the image forming portion; an attraction charging member... | 09/10/2002 |
| 6160981 | Transfer system A multi-color electrophotographic printing machine in which the tangential velocity of the photoconductive drum in the transfer zone is greater than the tangential velocity of the transfer drum having the sheet receiving the transferred images thereon. A ... | 12/12/2000 |
| 6120143 | Apparatus for holding a printing medium on a rotary drum and ink jet printer using the same An apparatus for holding a printing medium on a rotary drum, includes a rotary drum, a suction device, a medium holding mechanism and a medium removing device. The drum has a recess at its outer surface to extend along its rotation center line and rotates... | 09/19/2000 |
| 5920755 | Electrophotographic color printer with belt-to-belt toner transfer and top-side paper path A color electrophotographic printer (100) having a vertical photoreceptor belt (111) and a horizontal transfer belt (120) at the top of the printer. The result is a "T-shape" belt-to-belt toner transfer configuration with a top-side paper path. Color deve... | 07/06/1999 |
| 5655208 | Modular multi-function image-forming apparatus for printing mixed sided and mixed color copy sets A modular copier/printer or similar image forming apparatus of the type having an image transfer body in the form of a drum or belt allows documents to be reproduced in a paper discharge mode which discharges paper sheets, or recording media, in page-sequ... | 08/05/1997 |
| 5550620 | Image forming apparatus with attraction charger having first and second electrodes This invention relates to an image forming apparatus which has a recording material support member for supporting a recording material and moving therewith, an image forming unit for forming an image on the recording material supported by the recording ma... | 08/27/1996 |
| 5406358 | Image forming apparatus having recording material carrying member An image forming apparatus includes recording material carrying member for carrying a recording material; an image forming device for forming an image on the recording material carried on the recording material carrying member; a gripper for gripping the ... | 04/11/1995 |
| 5402217 | Image-transfer apparatus with a transfer cylinder having a specific surface form An image-transfer apparatus for producing an aesthetically fine transfer image includes a platen having a cut-off portion on the surface formed for attaching an image-forming material and a transfer cylinder having a cut-off portion on the surface formed ... | 03/28/1995 |
| 5392104 | Method and apparatus for creating colorgraphs having a photographic look and feel from images created electrostatographically A method of electrostatographically forming a color print that has the feel of a photographic print. A series of color separation electrostatographic latent images are formed on an image member. A different color toner is applied to each latent image to f... | 02/21/1995 |
| 5287163 | Overlaid image forming apparatus with coordinated transfer bias and attraction bias voltage sources A superposed image forming apparatus wherein toner images are superposedly transferred onto a transfer material includes an image bearing member; a device for forming a toner image on the image bearing member; a transfer material carrying member, disposed... | 02/15/1994 |
| 5239347 | Image forming apparatus having recording material carrying member and movable assisting member An image forming apparatus includes an image bearing member; a recording material carrying member for carrying a recording material; an image transfer device for transferring an image from the image bearing member to the recording material carried on the ... | 08/24/1993 |
| 5151745 | Sheet control mechanism for use in an electrophotographic printing machine An apparatus for advancing a sheet in a predetermined path is described. The apparatus includes a mechanism for advancing the sheet in the path. The apparatus further includes a first mechanism for controlling movement of the sheet while it is being advan... | 09/29/1992 |
| 5150163 | Sheet transport system with improved release mechanism A sheet transport system having a sheet release mechanism to effect release of a sheet from the sheet transport system at a point near the end of the transfer process. The sheet release mechanism includes a member positionable at a first fixed position sp... | 09/22/1992 |
| 5138397 | Park position control apparatus for a sheet transport system A method and apparatus for assuring proper park positioning of a sheet gripper device. A reference signal is generated by a master control board causing the sheet gripper to commence its movement along the belts of a sheet transport system. An index marke... | 08/11/1992 |
| 5138399 | Sheet transport system with improved registration An apparatus which advances a sheet through a transfer zone and into registration with information developed on a moving member. The sheet is advanced to a position wherein a leading portion thereof is immediately ahead of the transfer zone relative to th... | 08/11/1992 |
| 5136336 | Transfer mechanism for a sheet transport system An apparatus is described which advances a sheet in a predetermined path through a transfer zone and into registration with information developed on a moving member. The apparatus charges the sheet to transfer the information from the moving member to the... | 08/04/1992 |
| 5130758 | Image forming apparatus with means for separating the recording material from a carrying means An image forming apparatus includes separating device. A recording material having an image is carried on a recording material carrying member. The separating member separates the recording material from the recording material carrying member. The separat... | 07/14/1992 |
| 5075732 | Image forming apparatus which sets fixing roller speed depending on the number of copies on the transfer drum An image forming apparatus includes an image bearing member; a device for forming an image on the image bearing member; a device for transferring the image from the image bearing member to an image receiving material, the transfer device including a devic... | 12/24/1991 |
| 5043761 | Multicolor image forming apparatus having transfer roller for registering single color images A multicolor image forming apparatus forms a series of electrostatic images on an image member and tones those images with different colored toners. The toners are transferred in registration to a portion of a continuous web receiving sheet by securing th... | 08/27/1991 |
| 5019871 | Apparatus for electrostatically absorbing an image supporting material on an image supporting carrying member based on the kind of material used An image forming apparatus includes a movable image carrying member, a latent imager for forming a latent image on the image carrying member, a developer for developing the latent image by a toner, a transferrer for transferring a toner image on the image... | 05/28/1991 |
| 5016056 | Multicolor image forming apparatus and transfer roller Multicolor electrophotographic apparatus secures the ends of a receiving sheet in a trough which runs parallel to the axis of rotation of a transfer roller. An inclined surface in the trough gradually declines the transfer sheet away from the periphery of... | 05/14/1991 |
| 4935776 | Image forming apparatus A transfer medium supporting member which supports a transfer medium to which a toner image formed on a photoconductive member of an image forming apparatus is repeatedly transferred for required number of times, and a potential sensor for measuring the p... | 06/19/1990 |
| 4920383 | Paper handling for repetitive movement of variable length media through an image transfer station A plurality of paper paths are established for recirculating cut sheets through an image transfer station as in color xerography. Cut sheets of a variety of possible lengths are repetitively fed through the image transfer station by selecting the recircul... | 04/24/1990 |
| 4914482 | Sheet transport system An apparatus which transports a sheet through a transfer station to transfer an image from an image receiving member thereto. A stationary member has at least a portion thereof positioned closely adjacent the image receiving member to define a transfer zo... | 04/03/1990 |
| 4875069 | Anti-fouling device for sheet gripper A transfer device for transferring a toner image onto a transfer material includes transfer material supporting device having a sheet-like material for supporting the transfer material and a supporting member for supporting the sheet-like material for mov... | 10/17/1989 |
| 4750017 | Composite copying method and color copier for practicing the same A composite copying method in full colors, a single color, two colors and black and white and a color copier for practicing the method are disclosed. While toner images of different colors are sequentially transferred onto a paper, the paper is retained b... | 06/07/1988 |
| 4723145 | Color image forming apparatus comprising separate motors for driving the image bearing member and the transfer material supporting member A color image forming apparatus including an image bearing member movable along an endless path, on which color toner images are formed, a transfer material supporting member movable along an endless path for supporting a transfer material and conveying i... | 02/02/1988 |
| 4552448 | Sheet transport system An apparatus which advances a sheet into registration with information developed on a moving member. A sheet gripper transports the sheet in a recirculating path. The sheet gripper is detachably coupled to the member over a portion of the path of movement... | 11/12/1985 |
| 4415256 | Apparatus for transferring images An apparatus for transferring a developed image on an image bearing member includes a transfer corona discharger disposed in opposition to the transfer position of the image bearing member, transfer material bearing member having a dielectric transfer mat... | 11/15/1983 |
| 4072412 | Image transfer device An image transfer device, in which a developed image formed on an image-bearing member is transferred therefrom to a transfer medium, comprises a corona discharge device opposed to the image-bearing member for imparting corona discharge, a device for grip... | 02/07/1978 |
