Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8160479 | Image forming apparatus including corona charger An image forming apparatus includes a photosensitive member; a corona charger provided with a discharging wire for electrically charging the photosensitive member; an exposure device for exposing to light the photosensitive member; a developing device for developing... | 04/17/2012 |
| 8019255 | Alignment method for a plurality of coupled digital print engines The adjustment method aligns printing engines in a print assembly that is capable of printing on a receiver to form one or more final prints and includes corrections for cross-track misregistration. These adjustments are made in one embodiment by aligning two or mor... | 09/13/2011 |
| 7720415 | Image forming apparatus including fixing unit, and fixing unit support method and fixing unit position adjustment method therefor An image forming apparatus and methods of supporting and adjusting a position of a fixing unit thereof. The apparatus includes a frame having a first side plate and a second side plate opposing the first side plate, a first unit holding member engaged with the first... | 05/18/2010 |
| 7643774 | Roller spacing apparatus and image forming device having the same A roller spacing apparatus and an image forming device including the same. The roller spacing apparatus includes a frame, a first rotatable roller member having a first shaft, a second rotatable roller member having a second shaft and being rotatable in a close cont... | 01/05/2010 |
| 7593668 | Image forming apparatus with adjusting portions to adjust positions of conveying and discharge portions Provided is an image forming apparatus capable of mounting an internal unit in a main body chassis thereof, in which a position of a sheet conveying portion for conveying a sheet to the internal unit, with respect to the internal unit is adjusted by a first adjustme... | 09/22/2009 |
| 7570901 | Roller spacing apparatus and image forming device having the same A roller spacing apparatus and an image forming device including the same. The roller spacing apparatus includes a first roller member that is rotatable, a second roller member that is rotatable in a close contact with the first roller member under a predetermined p... | 08/04/2009 |
| 7437094 | Image forming apparatus having a gap regulating mechanism to regulate a gap between a photosensitive drum and a developing roller An image forming apparatus includes: a main frame; a developing unit, the developing unit including a photosensitive drum to form an electrostatic latent image on an outer surface thereof, a developing roller installed at one side of the photosensitive drum to devel... | 10/14/2008 |
| 7406276 | Contact pressure setting method and image forming apparatus A contact pressure setting method of setting a contact pressure between contact members of an image forming apparatus. A film member is inserted into a gap between the contact members and the contact pressure is set so that a pulling force to pull out the film membe... | 07/29/2008 |
| 7170649 | Scanning module having an adjustable height A scanning module having an adjustable height includes a CIS module having two ends along a longitudinal direction each provided with a distance adjusting member. Thus, when the CIS module is scanning the reflective document and the transparency, the distance adjust... | 01/30/2007 |
| 7162192 | Transfer belt device and image forming apparatus A transfer belt device includes an endless transfer belt that is tightly stretched by a plurality of rollers and forms a transport path where a recording medium or a developer image is transported facing a monochrome image bearing member and a plurality of color ima... | 01/09/2007 |
| 7139496 | Within page creep variation for improved stripping A fuser system and method for a xerographic device having improved self-stripping capabilities for a wide latitude of substrate media. The fuser system includes a fuser member and a pressure member in which the pressure member is made to exert a predetermined pressu... | 11/21/2006 |
| 7058337 | Process cartridge and electrophotographic image forming apparatus A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus that includes a cam movable between first and second positions. The cartridge includes an electrophotographic photosensitive drum, a developing roller de... | 06/06/2006 |
| 7009629 | Image forming apparatus with optical adjustors An image forming apparatus including a photoreceptor having an image carrying surface, first and second exposing devices to expose the image carrying surface to form first and second latent images, and first and second developing devices to develop the first and sec... | 03/07/2006 |
| 6982736 | Image forming apparatus with optical adjusters The image forming apparatus has light beam passing from the deflector directly to the image carrying surface. The light beam is not bent to the image carrying surface. The apparatus detects movement of optical system and it uses the detected movement to correct the ... | 01/03/2006 |
| 6978102 | Ejection apparatus and method Various embodiments of an ejection apparatus and methods are provided. In one representative embodiment an ejection apparatus includes a bar movable along a first axis and a carriage movable along a second axis which is distinct from the first axis. The bar which ha... | 12/20/2005 |
| 6952545 | OPC unit exchanging apparatus An OPC unit exchanging apparatus of a printer includes an organic photo conductor (OPC) unit; a developing cartridge including a developing roller and contacting the OPC unit; a separating unit to separate the OPC unit and developing cartridge by a predetermined dis... | 10/04/2005 |
| 6882813 | Roller spacing device A roller spacing device roller mechanisms having rollers in close contact under a given pressure to separate first and second rollers by a constant distance to keep the rollers from touching when roller mechanisms are not used for a long period of time. The roller s... | 04/19/2005 |
| 6836277 | Sensor attachment position determining method, image forming apparatus, and image forming method In this invention, the relationship between the attachment position of a sensor and the formation positional shift of a color image is checked by moving a color misregistration detection sensor along an attachment position candidate line that is defined in advance i... | 12/28/2004 |
| 6650453 | Mounting mechanism for a strap member A mounting mechanism is disclosed for a strap member in which the orientation of a surface of the strap member, such as a reflecting mirror, is adjustable. In particular, the strap member may be a cylindrical mirror for reflecting light beams to image car... | 11/18/2003 |
| 6636712 | Process unit and image forming device having an inter-axis distance regulation mechanism A process unit for use in an image forming apparatus includes a drum section containing a photosensitive drum and a drum frame for rotatably supporting the drum, and a developing section containing a developing roller and a roller frame for rotatably supp... | 10/21/2003 |
| 6615019 | Automatic original feeding apparatus and image forming apparatus provided with the same An automatic original feeding apparatus mounted on the main body of an image forming apparatus has an automatic original feeding apparatus main body, and rotary supporting device for openably and closably mounting the automatic original feeding apparatus ... | 09/02/2003 |
| 6600504 | Image forming apparatus having light beam adjusting mechanism An image forming apparatus has a photoreceptor having a image carrying surface, an exposing device to imagewise expose the image carrying surface to form a latent image, and a developing device to develop the latent image to form a toner image on the imag... | 07/29/2003 |
| 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 |
| 6501928 | Method and apparatus for setting a metering gap in a developer station The invention is directed to a method and to an apparatus for setting a metering gap in a developer station (1). The developer station (1) includes a magnetic drum (5) that comprises a preceding metering device for the acceptance of a developer mix (6) an... | 12/31/2002 |
| 6396524 | Skew adjustment for optical writer in a document printer/copier An electrophotographic printer/copier comprises a photoconductive drum assembly and an optical writer for projecting a rectilinear line of image information onto the drum's photoconductive surface. Both subsystems share the same pair of mechanical fiducia... | 05/28/2002 |
| 6335066 | Disposal cartridge with a recyclable toner-carrying roller A disposal cartridge for use in an image forming apparatus includes a sheet and a roller. An area of the sheet is at least equal to an area of the entire circumferential surface of the roller. The sheet is detachably bonded to an entire circumferential su... | 01/01/2002 |
| 6275672 | Adjustment mechanism for development station elements A mechanism for adjusting the location of a rotatable mixer and rotatable transport mechanism within the development station housing of an electrographic reproduction apparatus development station. The development station includes a housing, a rotatable m... | 08/14/2001 |
| 6253046 | Multi-functional fuser backup roll release mechanism A multi-functional fuser backup roll release mechanism and operating process are defined. In the event of a paper jam, the primary gear train from a prime mover to driven rolls of the imaging apparatus is interrupted, and a secondary drive train is engage... | 06/26/2001 |
| 6157797 | Image forming apparatus with integrated rotatable image carrier and writing device and method of assembling the same An image forming apparatus includes a common mount member formed with a shaft support portion for supporting a shaft supporting an image carrier and a writing device support portion for supporting the writing device. The common mount portion is affixed to... | 12/05/2000 |
| 6125252 | Adjustment setup mechanism for support rails of a development station for a reproduction apparatus An adjustment mechanism for setting up spacing of a development station for a reproduction apparatus within a desired tolerance range such that marking particles from the development station properly develop electrostatic images. The adjustment mechanism ... | 09/26/2000 |
| 6104898 | Rotary developing device having adjustably mounted developing units A rotary developing device which facilitates a positional adjustment of developing units and prevents the developing units from being shifted even when they are used for a long period. Pins protruding from a revolver are inserted into elongated holes form... | 08/15/2000 |
| 5953559 | Device and method for forming full-color images A device including a plurality of image-formation units stacked one over another, and a photosensitive body, provided in each of the image-formation units, which has an electrostatic image formed thereon. Also included is a development unit, provided in e... | 09/14/1999 |
| 5862429 | Image forming apparatus method for manufacturing the same and method for maintaining the same An image forming apparatus includes a subunit. The subunit includes a non-volatile RAM which previously stores data items corresponding to ID information used in the manufacturing process of parts constructing the image forming apparatus, ID information o... | 01/19/1999 |
| 5768676 | Method of setting a position of a movable member, and a position setting jig In order to set a position of a movable member in which a strip-like movable member which is disposed to be movable along a width direction perpendicular to a longitudinal direction of the member is disposed so that one edge of the movable member along th... | 06/16/1998 |
| 5717982 | Electrostatographic reproduction machine including optics assembly realignment tool In an electrostatographic reproduction machine having a charged imaging member and an optics assembly for forming a properly registered latent image on the charged imaging member, a quick and precise optics assembly realignment tool mounted removably with... | 02/10/1998 |
| 5592273 | Photoconductive drum and transfer apparatus for an image forming apparatus The image forming apparatus of the present invention includes a photoconductive drum, a transfer apparatus and a position adjusting apparatus. The photoconductive drum has a photoconductive-drum-sided gear and a photoconductive-drum-sided positioning cyli... | 01/07/1997 |
| 5526105 | Articulated vacuum transport apparatus Apparatus for transporting sheets seriatim along a travel path from a first station to a downstream second station. The sheet transport apparatus comprises a housing in juxtaposition with the sheet travel path. A first transport assembly and a second tran... | 06/11/1996 |
| 5510880 | Compensation device for sensitivity of the photosensitive drum of copying apparatus In an copying apparatus of the cartridge type having a photosensitive drum, a staticization charger, a destaticizer and any other peripheral processor units, a variable width slit formed above the drum and in the optical path between the light source and ... | 04/23/1996 |
| 5406362 | Pressure roller fuser with copy wrinkle control A pressure roller fuser includes a member at the end of at least one of the rollers for extending the position for applying the loading force between the rollers away from the center of the roller to cause the roller to bend with respect to the other roll... | 04/11/1995 |
| 5404211 | Developing device including device for selecting varying the thickness of the developing agent A developing roller is opposed to a photosensitive drum on which a latent image is carried, and developer supplied to the latent image is held and fed by the developing roller. Developer is supplied from a feeding roller to the developing roller. A thickn... | 04/04/1995 |
