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 |
| 8116648 | Image forming apparatus An image forming apparatus is provided. When a user inputs a print request, life count values stored in a life management section are read out. A table of correlation between the life count values and a rotating speed of a driving roller is looked up, a rotating spe... | 02/14/2012 |
| 8103182 | Image forming apparatus taht includes a transfer member that can be separated from an inner circumferential surface of a transfer belt when belt is rotating An image forming apparatus includes a transfer roller that can be separated from an intermediate transfer belt. When an operational mode is switched from a multicolor mode to a mono-color mode, the image forming apparatus changes a rotational speed of the intermedia... | 01/24/2012 |
| 8095028 | Image forming apparatus and image forming method A driving motor for a color black is shared between a photosensitive body for the color black and a driving roller that drives an intermediate transfer belt not shown. Furthermore, a driving motor for colors yellow, magenta, and cyan is shared between photosensitive... | 01/10/2012 |
| 8086127 | Adaptive transfer performance regulation by feedback and control An adaptive approach is described that maximizes xerographic transfer efficiency, i.e. minimizes post toner image transfer residual mass, in response to changes in operational conditions, variations in material, and/or changes in other factors that may otherwise adv... | 12/27/2011 |
| 8081892 | Image forming apparatus Bias correction control of an intermediate transfer belt 21 on which an image of each color formed on a surface of a photoconductive body 31 is transferred, and a second transfer belt 24 in pressure contact with the intermediate transfer belt | 12/20/2011 |
| 8068755 | Image forming apparatus An image forming apparatus is provided in which image forming sections are provided along an intermediate transfer member and in which a test voltage is applied to a transfer member to control a transfer voltage. In the image forming apparatus, the test voltage is a... | 11/29/2011 |
| 8068756 | Image forming apparatus and control method The present invention provides an image forming apparatus comprising an image forming unit configured to form an image on an image carrier, a transfer unit configured to transfer the image formed on the image carrier onto a transfer medium, a voltage applying unit c... | 11/29/2011 |
| 8064786 | Image forming apparatus An image forming apparatus is configured to select one of electrically discharging of an intermediate transfer member carried out by applying a voltage to a primary transfer member and electrically discharging of the intermediate transfer member carried out by apply... | 11/22/2011 |
| 8059979 | Control of a power supply for a transfer unit in an image forming apparatus An image forming apparatus has a transfer unit, a power supply unit that takes a value of a current imparted to the transfer unit as a control target and that supplies power conforming to the value of the control target to the transfer unit; and a determination unit... | 11/15/2011 |
| 8059981 | Image forming apparatus and control method therefor An image forming apparatus includes an image carrier, an exposure mechanism, a latent-image forming mechanism, at least one image forming mechanism including a development mechanism to develop the latent image, an intermediate transfer member disposed to contact the... | 11/15/2011 |
| 8059980 | Image forming apparatus with improved transfer roller An image forming apparatus is provided with an image bearing member for transferring an image to a transfer material using a developer, a transfer roller arranged in contact with the circumferential surface of the image bearing member for forming a transfer nip port... | 11/15/2011 |
| 8050582 | Image forming apparatus In a black monochromatic mode, an intermediary transfer belt is separated from an upstream photosensitive drum in a state in which a downstream photosensitive drum contacts the intermediary transfer belt. At this time, a stretching roller is moved upwardly in interr... | 11/01/2011 |
| 8045875 | Image forming apparatus and image forming method capable of generating stable transfer electric field An image forming apparatus includes an image carrier for carrying a toner image and a transfer device. In the transfer device, a voltage applier applies a predetermined voltage to a transfer electric field generator. A potential measurement device measures a surface... | 10/25/2011 |
| 8041243 | Image forming apparatus and image forming method capable of effectively transferring toner images A first degradation degree detector detects a first degradation degree of one of a plurality of image forming devices for forming toner images, respectively, which is provided at an extreme downstream position in a direction of rotation of an intermediate transfer m... | 10/18/2011 |
| 8041244 | Image forming apparatus An image forming apparatus includes first and second image forming units respectively including first and second photosensitive members and first and second toner image forming devices for forming a toner image on the first and second photosensitive members respecti... | 10/18/2011 |
| 8027606 | Image forming apparatus with condition setting for manual duplex mode Provided is an image forming apparatus including an image forming section forming images on image forming faces of a recording medium, a condition setting section individually setting an operating condition of the image forming section for forming the image on a fir... | 09/27/2011 |
| 8023849 | Image forming apparatus and image forming method An image forming apparatus, including: an image carrier for carrying an image; a transfer roller including a holder member that holds a transfer material, a groove portion in which the holder member is disposed, and an elastic member disposed over the transfer rolle... | 09/20/2011 |
| 8019246 | Image forming apparatus An image forming apparatus includes an image bearing member for carrying a toner image; a transfer member for cooperating with the image bearing member to form a nip to transfer a toner image onto a transfer medium; transfer voltage applying means for applying a tra... | 09/13/2011 |
| 8010005 | Image forming apparatus An image forming apparatus includes a transfer device, a voltage applicator, a current sensor, and a discharge detector. The transfer device transfers a toner image from one surface to another by developing an electrical field across a transfer gap when provided wit... | 08/30/2011 |
| 8010004 | Belt transfer device A belt transfer device according to the present invention includes an intermediate transfer belt, a transfer member, a shifter, a detector, and a controller. The transfer member primarily transfers a toner image from an image carrier to the intermediate transfer bel... | 08/30/2011 |
| 8005387 | Apparatus for forming multi-color image with control of unintended reverse-transfer of developer image onto photoconductor An apparatus for forming a multi-color is disclosed which includes a controller that performs an anti reverse-transfer control such that a surface potential of a previously-formed separated-developer-image subset of a plurality of single-color separated-developer-im... | 08/23/2011 |
| 8000620 | Image forming apparatus and transfer method thereof An image forming apparatus includes a moving unit including a conveyer belt which moves a printing medium, an attraction unit to attract the printing medium to the conveyer belt, a transferring unit to transfer developer onto the printing medium, a power supply whic... | 08/16/2011 |
| 8000621 | Image forming apparatus An image forming apparatus is configured to reduce follow-up delay in impedance fluctuation and to reduce an accuracy fall in power supply control. The image forming apparatus includes a transfer element, a supply element, a detection element, a modification element... | 08/16/2011 |
| 8000622 | Moving body controlling device, intermediate transferring device, and image forming apparatus having the same A disclosed moving body controlling device includes a first moving body driven by a first motor that is controlled by a first control unit, a second moving body driven by a second motor that is controlled by a second control unit and affecting movement of the first ... | 08/16/2011 |
| 7983580 | Image forming apparatus and control method thereof An image forming apparatus and a control method thereof to improve quality of an image in consideration of a change in posture of a print media. The image forming apparatus can include a transferred unit on which a visible image is formed, a transferring unit to for... | 07/19/2011 |
| 7970308 | Image forming apparatus with loop correcting device An image forming apparatus of the present invention includes an image bearing member for carrying a toner image, a rotatable endless belt, a transfer member for transferring a toner image from the image bearing member onto the endless belt electrostatically, a detec... | 06/28/2011 |
| 7970307 | Methods and apparatus for transferring a toner image via electrophotographics A transfer apparatus capable of suitably measuring the amount of electric charges transferred from a transfer member to a transfer body and performing a transfer process without degrading the image quality by supplying an amount of electric charges suitable for any ... | 06/28/2011 |
| 7957659 | Image forming apparatus for marginless printing Provided is an image forming apparatus in which the image forming apparatus has a marginless mode in which the toner image is formed on said image bearing member in an area that covers the recording material and an area outside the recording material, and the toner ... | 06/07/2011 |
| 7953335 | Image forming apparatus and tandem image forming apparatus An image forming apparatus has a photoconductive drum or belt supporting a toner image, a transfer member transferring the toner image onto a recording medium, a transportation device transporting the recording medium to between the photoconductor and the transfer m... | 05/31/2011 |
| 7953336 | Image forming apparatus with recovery unit An image forming apparatus comprises an image carrier configured to hold a developing agent image; a transfer unit that transfers the developing agent image to a recording medium; a first application unit that controls a transfer voltage applied to the transfer unit... | 05/31/2011 |
| 7937010 | Apparatus and method for image and print blanket enhancement Apparatus and methods for improving print quality and print blanket life in liquid electrostatic printing, for example, forming a first toner image on an image surface; first transferring the first image to an intermediate transfer member; then transferring of the f... | 05/03/2011 |
| 7929877 | Transfer device and image forming apparatus having at least two contacting members applied with corresponding transfer biases An image forming apparatus includes an intermediate transfer belt, a photosensitive belt, a primary transfer roller, a secondary-transfer opposing roller, and a secondary transfer roller. The photosensitive belt comes into contact with a surface of the intermediate ... | 04/19/2011 |
| 7925176 | Transfer voltage control method of image forming apparatus A transfer voltage control method of an image forming apparatus includes supplying a first measurement voltage to a first transfer member and a second transfer member, measuring a variation in resistance of the first transfer member by supplying a second measurement... | 04/12/2011 |
| 7899349 | Image forming apparatus with controller for setting transfer member bias In an image forming apparatus, temporary constant voltages are corrected by using three voltage-current data obtained by applying voltages at three levels to a primary transfer roller to detect currents corresponding to the voltages, respectively. A surface potentia... | 03/01/2011 |
| 7877032 | Image forming apparatus An image forming apparatus includes an image bearing member, a toner image forming member, an intermediary transfer member for forming a primary transfer portion, and a primary transfer member supplied with a transfer voltage. The apparatus also has a voltage source... | 01/25/2011 |
| 7877033 | Image forming apparatus There is provided an image forming apparatus, including: a image bearing member; a charging member; a developing device; a transfer member that forms a transfer portion, thereby transferring a toner image on the image bearing member, to a transfer material; a first ... | 01/25/2011 |
| 7873292 | Image forming apparatus and transfer method thereof An image forming apparatus includes a moving unit which includes a conveyer belt to move a recording medium, an attraction unit which is disposed at a front head in a moving direction of the recording medium and attracts the recording medium to the conveyer belt, a ... | 01/18/2011 |
| 7860417 | System and method for varying transfer pressure applied by a transfer roller in a printer A printer and method have been developed that vary the force applied by the transfer roller against the imaging member to facilitate the climb of the transfer roller as the media enters the nip and then apply an appropriate force for effective transfer of an image f... | 12/28/2010 |
| 7848671 | Image forming apparatus with multiple image forming portions and image transfers An image forming apparatus according to an exemplary embodiment of the invention includes a first image forming portion, a second image forming portion, a secondary transfer device, a transfer power supply, a controller. The first and second image forming por... | 12/07/2010 |
| 7844191 | Image forming apparatus and image forming method performed by the image forming apparatus An image forming apparatus, in which an image forming method is performed, includes an image carrier, an optical writing unit, a developing unit developing a toner image including an output image and a forcible toner consumption image, a transfer unit including an e... | 11/30/2010 |
