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| Number | Title | Issue Date |
| 8126387 | Sheet conveying device and image forming apparatus A fluctuation detecting unit detects a fluctuation of an endless belt generated when a sheet is brought into contact with a predetermined position of the endless belt at an upstream side in a conveying direction from a nip portion based on fluctuation information ac... | 02/28/2012 |
| 8060003 | Image forming apparatus wherein a setting unit sets an interval of image formation according to a size of a recording medium An image forming apparatus includes a paper cassette feeding a recording material, an image forming unit forming an image on a photosensitive member, a primary transfer roller transferring the image onto an intermediate transfer belt, a secondary transfer roller tra... | 11/15/2011 |
| 7974568 | Image forming apparatus, controller, computer readable medium and image forming condition adjustment method An image forming apparatus is provided with: an image forming unit that forms an image on a medium according an image forming condition; a speed changing unit that changes an image forming speed of the image forming unit between a plurality of image forming speeds i... | 07/05/2011 |
| 7835684 | Method and device for controlling an electrographic printer or copier In a method for control of an electrophotographic printer or copier, information that refer to a single sheet are determined from print data supplied to the printer or copier. Dependent on said information, a transport path of the single sheet through the printer or... | 11/16/2010 |
| 7603073 | Image forming apparatus An image forming apparatus includes an image supporting member; a belt; a belt drive unit for rotating the belt; an acceleration and deceleration information storage unit; and a belt speed control unit. The belt speed control unit determines a difference between a f... | 10/13/2009 |
| 7587165 | Image forming apparatus An image forming apparatus carries out an image processing with respect to a sheet size and image information based on a print request to obtain a write image on a photoreceptor. On the basis of a printing ratio of the write image, the apparatus predicts occurrence ... | 09/08/2009 |
| 7539455 | Image forming apparatus An image forming apparatus of the present invention carries out an image processing with respect to image information which is to be printed. The image forming apparatus predicts the occurrence of an image elongation which may occur due to slippage of a recording ma... | 05/26/2009 |
| 7522873 | Image forming apparatus, method for controlling the same, and program An image forming apparatus includes an image forming apparatus body and a peripheral unit operable to transport a recording medium. The image forming apparatus includes a communication device for communicating with the peripheral unit and a controller for controllin... | 04/21/2009 |
| 7512377 | System and method for extending speed capability of sheet registration in a high speed printer A system and method for registering a sheet transported along a sheet path of a printing system, including receiving a sheet at a first location, transporting the sheet along the sheet path from the first location in a downstream direction at a first speed. The spee... | 03/31/2009 |
| 7469123 | Image forming apparatus An image forming apparatus includes an image forming portion that superposes images on an intermediate transfer member by rotations of the intermediate transfer member to form a color image on the intermediate transfer member, a transfer portion that transfers the i... | 12/23/2008 |
| 7444114 | Image forming apparatus and image forming method An image forming apparatus that conveys a long belt-like recording sheet on a conveyance path and forms an image on the recording sheet when the recording sheet passes through an image forming section, the image forming apparatus comprising: a recording medium drive... | 10/28/2008 |
| 7437120 | Optical sensor for monitoring motion of a blank sheet An apparatus monitors the motion of sheet, such as in a digital printer. An optical sensor is capable of recording an image in a two-dimensional array of pixels, and has acuity to recognize a terrain of a small area on a sheet that is substantially blank to a human ... | 10/14/2008 |
| 7424255 | Device and method for belt speed control, and image forming apparatus A scale including equally spaced marks is attached to a belt in a direction of movement of the belt such that a gap is formed between a first end and a second end of the scale. A first sensor and a second sensor detect the marks on the scale and output first signals... | 09/09/2008 |
| 7421241 | Printing system with inverter disposed for media velocity buffering and registration Parallel printing systems and methods incorporate inverter assemblies for not only inverting media during transport through the system but also to register the media or provide a velocity buffer transports with different drive velocities. The inverter assemblies can... | 09/02/2008 |
| 7415239 | Conveying apparatus and recording apparatus having the same A conveying apparatus which synchronously conveys a conveyed object includes a first conveyance roller disposed at a downstream side of a conveyance path for conveyance of the conveyed object and a second conveyance roller disposed at an upstream side of the conveya... | 08/19/2008 |
| 7398047 | Image tracking control algorithm An image-to-sheet closed loop registration system tracking the image drum position and/or velocity and coordinating movement of the sheet into the transfer nip based on such information. ... | 07/08/2008 |
| 7383016 | Electrophotographic device capable of performing an imaging operation and a fusing operation at different speeds An electrophotographic imaging device comprises generally, an image transfer station configured to transfer a toned image to a substrate, a fuser assembly configured to fuse the toned image to the substrate and a transport device configured to transfer the substrate... | 06/03/2008 |
| 7376364 | Image forming apparatus An image forming apparatus includes a sheet feeding cassette, transport rollers, a pick-up roller, a sheet detector, and a control section. The sheet feeding cassette stores sheets for developer images to be transferred thereonto at a secondary transfer position. Th... | 05/20/2008 |
| 7370863 | Duplex image forming apparatus with feeding roller with at least three different speeds An image forming apparatus is provided. The image forming apparatus is capable of suppressing occurrence of a problem caused by misalignment of the feeding speed at the time of delivery and receipt in the intermediate feeding roller with a simple configuration witho... | 05/13/2008 |
| 7338042 | Sheet supplying apparatus The uppermost original of a bundle of originals placed on a stacking tray is photographed by an area sensor, and on the basis of chroma saturation information of image information thus obtained, whether the original to be separated is a color original is discriminat... | 03/04/2008 |
| 7328898 | Image forming apparatus including timing determination unit, and corresponding sheet feeding method An image forming apparatus including a drive unit that drives a drive control unit that supplies a first drive current to the drive unit so as to acceleratingly drive an intermediate feeding roller, and supplies a current that is smaller than the first drive current... | 02/12/2008 |
| 7322760 | Antijamming device for printers put in public places An antijamming device for a printed ticket vending machine having an exit opening for exiting of a printed ticket and a control for controlling feeding of unprinted tickets to a printing mechanism for printing tickets, having a pathway through which printed tickets ... | 01/29/2008 |
| 7315701 | Systems and methods for reducing transfer deletions in an electrostatographic printer An apparatus is provided for reducing transfer deletions in an electrostatographic machine. The apparatus includes a registration controller for driving a print substrate at a registration velocity and feeding the print substrate to an image-retentive member. The ap... | 01/01/2008 |
| 7280798 | Image forming apparatus with conveying device urging a recording material toward a charge eliminating member The image forming apparatus has an image bearing member for bearing a toner, a transfer device which forms a transfer area in cooperation with the image bearing member for transferring the toner on the image bearing member onto a recording material, a charge elimina... | 10/09/2007 |
| 7274901 | Method and arrangement for generating positionally accurate print images on a carrier material The invention relates to a method and an arrangement for generating positionally-accurate print images on a carrier material with the aid of an electrophotographic printer or copier. A positioning error of the position of the carrier material with respect to a toner... | 09/25/2007 |
| 7240901 | Sheet processing apparatus and sheet processing method A sheet processing apparatus which is capable of securing a sufficient sheet bundle processing time period even with a short sheet conveying path to thereby maintain required capability of processing sheets conveyed at constant intervals. Rollers that convey sheets ... | 07/10/2007 |
| 7212780 | Process and device for supplying substrates in a printing unit Preparing substrates for one-sided or two-sided printing in an electrophotograpically operated digital printing apparatus, in which process substrates are fed out of a supply unit or several supply units onto a conveyor operation sequence and are transferred, prefer... | 05/01/2007 |
| 7197275 | Image forming apparatus and image forming method including low-noise mode at paper sheet reverse section An image forming apparatus and image forming method including a low-noise mode at paper sheet reverse section to decrease a reverse convey speed of reverse conveyance by a reverse roller pair, where necessary, a reverse convey speed of reverse conveyance. ... | 03/27/2007 |
| 7197256 | Image forming apparatus with transfer belt speed control An image forming apparatus is disclosed that is capable of automatically acquiring thickness variation data of a transfer belt newly installed in the image forming apparatus without manual operation of setting the thickness variation data, and capable of controlling... | 03/27/2007 |
| 7192205 | Method for reducing printing position error and image forming apparatus using the same An apparatus and method are provided for reducing a printing position error, in which the method includes the steps of (a) driving an encoder wheel as many times as a predetermined number of forward counts at a predetermined initial acceleration, thereby making the ... | 03/20/2007 |
| 7158750 | Paper transport apparatus and paper transport method Provided are photosensitive body or bodies 31b carrying toner; transfer roller(s) 31d, rotating and coming in contact with photosensitive body or bodies 31b, for causing toner image(s) formed on photosensitive body or bodies... | 01/02/2007 |
| 7147391 | Image forming device The present invention provides an image forming device comprising a first roller mechanism for sending out printing paper from a paper feed tray accommodating the printing paper therein, a second roller mechanism for transporting the printing paper to a printing sta... | 12/12/2006 |
| 7130574 | Image forming device with multimode duplexer An image forming device in a color printer or the like includes duplex printing. Multiple media sheets are moved through a media path which includes a primary path and a duplex path. Various parameters of the image forming device control the interpage gap between sh... | 10/31/2006 |
| 7130549 | Method and apparatus for forming image An image forming apparatus of the present invention uses sensors to detect a marker of a transfer belt, and assigns the transfer belt to detect a medium feeding position and exposure start position, whereby time or waiting time required to transfer a color toner ima... | 10/31/2006 |
| 7123873 | Printing system with inverter disposed for media velocity buffering and registration Parallel printing systems and methods incorporate inverter assemblies for not only inverting media during transport through the system but also to register the media or provide a velocity buffer transports with different drive velocities. The inverter assemblies can... | 10/17/2006 |
| 7095977 | Image formation apparatus and image formation method An image formation apparatus comprises a transporting roller pair and resist roller pair for transporting sheets supplied from a sheet supplying device positioned relative to the image formation apparatus at a sheet supplying interval, and an image processing contro... | 08/22/2006 |
| 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 |
| 7080834 | Sheets reversing controller and control method A sheet reversing controller has a first conveying path for conveying sheets in the first direction, sensors to detect lengths of sheets in the conveying direction; a reversing portion comprising a reversing roller that is capable of normal/reverse rotations for tak... | 07/25/2006 |
| 7079803 | Electrophotographic printer A controller outputs a PRE CPF-N signal and a CPF-N signal following the PRE CPF-N signal to an electrophotographic printer. The electrophotographic printer 1 starts a predetermined preparation process in response to the PRE CPF-N signal, and starts irradiati... | 07/18/2006 |
| 7079797 | Offset preventing color image forming apparatus An image forming apparatus forms a toner image on a moving member by transferring and superposing component color toner images formed on an image bearer. An image forming apparatus includes a driving device that rotates and transports a moving member, a moving value... | 07/18/2006 |
