Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8045915 | Apparatus for decurling an advancing sheet, and a printing device containing such an apparatus An apparatus for decurling an advancing sheet, which contains an endless carrying belt, and multiple rollers for guiding said carrying belt, said rollers including a decurling roller, wherein the mutual orientation between the carrying belt and the decurling roller ... | 10/25/2011 |
| 7979020 | Image forming apparatus An image forming apparatus which forms an image electrophotographically, comprises an image transfer unit which transfers a toner image to a recording medium, a fixing unit comprising a heat roller and a pressure roller, a conveying direction change unit which chang... | 07/12/2011 |
| 7865128 | Discharging unit and image forming apparatus having the same A discharging unit for discharging a printing medium from an image forming apparatus includes an elastic roller and a curl preventing roller to oppose each other in a pressing relationship forming a nip therebetween to reduce curling of a print medium passing throug... | 01/04/2011 |
| 7865127 | Image forming apparatus An image forming apparatus includes: an image former for performing an image formation by transferring a toner image onto a sheet; a fixing unit for performing a fixing operation with respect to the sheet having the transferred toner image by heating; a discharge tr... | 01/04/2011 |
| 7860447 | Curling device and image forming apparatus A curling device includes a first curling unit configured to curl a sheet in a first direction and a second curling unit. The second curling unit is for curling a sheet which has passed the first curling unit in a second direction which is opposite to the first dire... | 12/28/2010 |
| 7840173 | Sheet moisturizing device, sheet remedying apparatus incorporating the sheet moisturizing device, and image forming apparatus incorporating the sheet moisturizing device A sheet moisturizing device, including: paired moisturizing rollers which form a nipping section to apply water onto a sheet when the sheet is conveyed through the nipping section; two water supplying rollers, each being in pressure contact to each of paired moistur... | 11/23/2010 |
| 7809323 | SDM automatic control algorithm A device, method and program for automatically adjusting a paper curl of media in an imaging device are provided. The imaging device includes a decurler having two rollers defining a nip. A first roller has a substantially uncompressible surface, and a second roller... | 10/05/2010 |
| 7761047 | Image forming apparatus and uncurling device for image forming apparatus An image forming apparatus includes: a discharge wall including a discharge port that discharges a sheet; a first roller; a second roller, the first roller and the second roller transferring the sheet toward the discharge port; a discharge tray including a stacking ... | 07/20/2010 |
| 7706738 | Paper discharge device and image forming apparatus having the same A paper discharge device and an image forming apparatus having the same are provided. In the paper discharge device, the paper discharge roller has a non-uniform diameter extending in a longitudinal direction and the idle roller contacts with the paper discharge rol... | 04/27/2010 |
| 7697884 | Image forming apparatus The sheet conveying apparatus includes a first curl forming part provided downstream of a fixing part for fixing a toner image to a sheet, for curling the sheet; a second curl forming part provided downstream of the first curl forming part, for curling the sheet in ... | 04/13/2010 |
| 7653340 | Decurl device and image forming apparatus provided therewith A decurl device includes: a curl detecting section having a plurality of toothed wheels each which detects a curling amount and a curling direction of a sheet having a curl; and a plurality of uncurling sections each arranged downstream of the curl detecting section... | 01/26/2010 |
| 7532855 | Image forming apparatus An image forming apparatus including: an apparatus main body; a discharge roller portion that discharges sheet members; a tray being capable of stacking the sheet members discharged from the discharge roller portion; and a curl correcting member being capable of arr... | 05/12/2009 |
| 7489898 | Sheet processing apparatus and image forming apparatus provided with the same A sheet processing apparatus includes a curling unit which curls an end portion of a sheet, and a folding device which is disposed downstream of the curling unit and folds a sheet or a sheet bundle curled by the curling unit. The folding device folds the sheet bundl... | 02/10/2009 |
| 7471925 | Sheet processing apparatus and image forming system A sheet processing apparatus which flattens a curled sheet includes: a water content control unit which controls a water content of a sheet to flatten the curled sheet; a decurling section which is provided downstream the water content control unit with respect to a... | 12/30/2008 |
| 7418233 | Image forming apparatus A fuser allows a sheet medium on which a toner image has formed to path through while heating the sheet medium, thereby fusing the toner image on the sheet medium. A plurality of first rollers are arrayed in a first direction. A plurality of second rollers are array... | 08/26/2008 |
| 7407160 | Discharge system for printed sheets A discharge system for printed media sheets and a printer which utilizes such a discharge system, the discharge system including a tray for the media sheets; rotating transport elements forming a discharge nip for discharging the sheets onto the tray; a guide plate ... | 08/05/2008 |
| 7406292 | Image forming apparatus and fixing device An image forming apparatus a first fixing device fixing the toner image on the sheet; a second fixing device fixing the toner image, fixed on the sheet by the first fixing device; a fixing conveyance path guiding the sheet carrying the toner image fixed by the secon... | 07/29/2008 |
| 7386270 | Image forming apparatus An image forming apparatus comprises a fixing unit for fixing toner image onto a sheet on which the toner image is formed, and a redelivery path for delivering the fixed sheet ejected from the fixing unit to the image forming unit again. A curved path receives the f... | 06/10/2008 |
| 7383017 | Curl correcting device and image forming apparatus A sheet curl correcting device and an image forming apparatus incorporating the same. The image forming apparatus includes a fixing unit for fixing a toner image transferred by an electrophotographic image forming unit to a sheet, a pair of rollers having different ... | 06/03/2008 |
| 7379703 | Image forming apparatus A plurality of helical groove sections are provided on outer peripheral surfaces of press rollers provided in a curl elimination mechanism. Each of the groove sections assumes a shape extending in the circumferential direction of the respective press rollers; that i... | 05/27/2008 |
| 7376383 | Device for regulation of the sliding properties of a print substrate in an electrophotographic printer or copier In an electrophotographic printer or copier, toner images of images to be printed onto a printing substrate are generated and fixed, causing sliding characteristics to be worsened. In order to remedy this problem, a moistening device is provided that applies on the ... | 05/20/2008 |
| 7369787 | Image forming apparatus An image forming apparatus has a heating rotator 12 that is heated by a first heat source 18, a pressurizing rotator 24 that is heated by a second heat source 28, that is in pressure contact with the heating rotator 12, and that fo... | 05/06/2008 |
| 7356303 | Image forming apparatus and a sheet conveying method of the image forming apparatus An image forming apparatus having: an image forming portion to form an image on a sheet; a fixing device to fix the image to the sheet by heating; a conveying path switching member to switch a conveying direction of the sheet, which is provided on downstream of the ... | 04/08/2008 |
| 7347637 | Hybrid paper supply module and image forming apparatus equipped with such hybrid paper supply module Mechanism unit(s) 6 functioning as automatic-feed cassette(s) and mechanism unit(s) 7 functioning as manual-feed tray(s) together form a single integral module, constituting hybrid paper supply module 5. Manual-feed mechanism unit(s) 7 is... | 03/25/2008 |
| 7333766 | Colour proofer with curl control means A large format printer using web fed material is able to cope with roll fed material and sheets having residual curl. An anti-curl guidance device counteracts curl when feeding the medium to a second transport system. The medium is held flat by a vacuum system and d... | 02/19/2008 |
| 7319838 | Fixing unit and image forming apparatus with a peeling member A fixing unit includes a belt module that has a belt member stretched around a rotary roll and a stretching roll, the belt module transporting a recording medium, and a pressing member that is disposed to press the belt module and forming a nip portion between the b... | 01/15/2008 |
| 7315721 | Image forming and fixing apparatus with cooling fan An image forming apparatus comprises an image forming unit for forming a toner image on a sheet, a fixing unit for fixing the toner image transferred on the sheet by heat, a cooling fan for cooling the sheet by supplying air to the sheet fixed by the fixing unit and... | 01/01/2008 |
| 7313355 | Image forming apparatus There is described an image forming apparatus, which forms high quality images free from a phenomenon of inter-sheet adhesion. The image forming apparatus includes a conveyance section to convey the transfer material along a conveying path; a cooling device disposed... | 12/25/2007 |
| 7310495 | Image forming apparatus The present invention provides an image forming apparatus that can perform stable sheet conveyance, regardless of whether a sheet processing apparatus is connected thereto. The image forming apparatus can be connected to a sheet processing apparatus that performs po... | 12/18/2007 |
| 7300055 | Image forming apparatus The object is to provide an image forming apparatus in which the copy sheet can be transferred with stable velocity and high accuracy even if there is variation in diameter due to machining tolerance. A pair of roller for feeding copy sheet pinching the sheet betwee... | 11/27/2007 |
| 7298981 | Fixing device and image forming apparatus with guide having adjustable biasing angle A fixing device includes a first fixing part having a heater disposed therein, a second fixing part, disposed to oppose to the first fixing part, for pinching a recording medium to form a first nip portion, a pair of transfer rollers, disposed at a downstream side o... | 11/20/2007 |
| 7299004 | Image forming apparatus An image forming apparatus, including: an image forming section for forming a toner image on a transfer sheet; a fixing section for fixing the toner image on the transfer sheet; a sheet ejection se... | 11/20/2007 |
| 7288059 | Sheet processing apparatus and image forming apparatus equipped with the same A sheet processing apparatus includes a processing tray on which sheets are stacked in a bundle form, an intermediate portion stapler which staples the intermediate portion of the sheet bundle stacked on the processing tray, a sheet bundle conveying member which con... | 10/30/2007 |
| 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 |
| 7266339 | Image-forming device In a fixing portion, a heating roller and a pressure roller are provided. An angle of separation θ (°), the temperature THR (° C.) of the surface of the heating roller, the diameter DPR (mm) of the pressure roller, and the width WNIP | 09/04/2007 |
| 7260333 | Fixing apparatus A fixing unit adapted to fix a developing agent onto an image forming medium by way of a heat roller containing a heater and a press roller conducts a warming up operation for the optimum warming up time as determined based on the temperature and the humidity of amb... | 08/21/2007 |
| 7233748 | Color image forming apparatus and color image forming method having overlapping toners In a digital copying machine according to an image forming apparatus of the invention, when a “thick paper” mode is set through an operation panel, a main CPU sets a gradient of γ for “thick paper” in a γ correction unit of an image processing unit. Thus, ... | 06/19/2007 |
| 7229167 | Ink jet recording apparatus, ink-jet recording method and ink jet recording medium A recording method comprising the steps in the following order of: correcting a curl of a recording medium by applying heat and pressure to the recording medium; and forming an image on the recording medium by jetting ink onto the recording medium. ... | 06/12/2007 |
| 7200356 | Discharge roller device A discharge roller device includes at least one roller pair, at least one first free roller and at least one second free roller. The roller pair includes a driving roller and a pressure roller pushed against the driving roller. The first free roller is disposed at a... | 04/03/2007 |
| 7177587 | Switchback device and image forming apparatus including it To suppress generation of scratches and dirt on a printed face and to intend to reduce in size, a switchback device (1) provided in a conveyance path (12) for a printed medium (3), for reversing the direction of movement of the medium (3)... | 02/13/2007 |
