Patent application number | Description | Published |
20090295075 | SHEET CONVEYING APPARATUS, IMAGE FORMING APPARATUS, AND IMAGE READING APPARATUS - An aspect of the invention provides a sheet conveying apparatus, an image forming apparatus, and an image reading apparatus, in which generation of skew feeding caused by the shock in pressure contact of a rotation body can be reduced. An interlocking mechanism brings a driven roller | 12-03-2009 |
20100189486 | IMAGE FORMING APPARATUS - The present invention provides an image forming apparatus capable of prolonging life time of a fixing roller. | 07-29-2010 |
20110062133 | FLUX CORED WIRE FOR WELDING DUPLEX STAINLESS STEEL WHICH REFINES SOLIDIFIED CRYSTAL GRAINS - The present invention provides flux cored wire for welding duplex stainless steel which refines the solidified crystal grains for obtaining weld metal superior in toughness and ductility, characterized by containing, as the chemical ingredients included in the steel sheath and flux, by mass % with respect to the mass of the wire as a whole, C: 0.001 to 0.1%, Si: 0.01 to 1.0%, Mn: 2.0 to 6.0%, Cr: 17.0 to 27.0%, Ni: 1.0 to 10.0%, Mo: 0.1 to 3.0%, Al: 0.002 to 0.05%, Mg: 0.0005 to 0.01%, Ti: 0.001 to 0.5%, and N: 0.10 to 0.30%, further limiting P to 0.03% or less and S to 0.01% or less, satisfying 0.73×Cr equivalents−Ni equivalents≧4.0 and Ti(mass %)×N(mass %)≧0.0004, and having a balance of iron and unavoidable impurities. | 03-17-2011 |
20110091258 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image forming unit configured to form an image on a sheet, a fixing unit configured to fix the image formed by the image forming unit on the sheet, a cooling unit configured to cool the sheet having the image fixed thereon by the fixing unit, a curl amount changing unit configured to change an amount of curl of the sheet by bending the sheet having the image fixed thereon, and a path configured to guide the sheet having the image fixed thereon to the image forming unit, after the sheet is conveyed through the curl amount changing unit and the curl amount changing unit. The curl amount changing unit changes an amount of bending the sheet according to whether the sheet is stopped at the cooling unit or not. | 04-21-2011 |
20110097234 | LEAN DUPLEX STAINLESS STEEL EXCELLENT IN CORROSION RESISTANCE AND TOUGHNESS OF WELD HEAT AFFECTED ZONE - The present invention provides a lean duplex stainless steel able to suppress the drop in corrosion resistance and toughness of a weld heat affected zone and is characterized by containing, by mass %,
| 04-28-2011 |
20120002228 | IMAGE FORMING APPARATUS - An image forming apparatus includes a first image forming unit, a second image forming unit. In combined processing to perform two types of processing including one-sided image formation and two-sided image formation, if the one-sided image formation is performed, an image is formed on one side of the sheet by the second image forming unit. If there is an execution request for a job of one-sided image formation processing different from a combined job of the combined processing during execution of the combined job, the image formation control unit, while performing the one-sided image formation in the combined job of the combined processing by the second image forming unit, performs the one-sided image formation related to the execution request for the job of the one-sided image formation processing different from the combined job by the first image forming unit and then discharges from the intermediate discharge unit a sheet which has undergone the one-sided image formation processing in the job different from the combined job. | 01-05-2012 |
20120025457 | SHEET CONVEYING APPARATUS, IMAGE FORMING APPARATUS AND IMAGE READING APPARATUS - The skew feeding amount of a sheet front end is calculated according to the difference between timings when activation sensors detect the sheet front end, and the skew feeding amount of the sheet side edge is calculated according to the difference between side edge positions of the sheet detected by the first side registration detection sensor or the second side registration detection sensor. Further, whether a sheet is a rectangular sheet or a non-rectangular sheet is determined before skew feeding of the sheet is corrected, and, when the sheet is determined to be a rectangular sheet, the skew feeding correcting portion is controlled based on one of the sheet side edge skew feeding amount and sheet front end skew feeding amount and the skew feeding correcting portion is controlled based on the sheet side edge skew feeding amount when the sheet is determined to be a non-rectangular sheet. | 02-02-2012 |
20120075681 | IMAGE FORMING APPARATUS - The present invention provides an image forming apparatus which can increase the life of a fixing roller without causing increase of the apparatus in size and image displacement. A first skew feeding and registration correcting portion | 03-29-2012 |
20120128390 | CORONA DISCHARGER AND IMAGE FORMING APPARATUS - A corona discharger, including a shield and a charging wire provided in the shield, for generating corona discharge by applying a voltage to the charge wire, the corona discharger includes a winding-up portion for winding up the charging wire by rotation thereof to move the charging wire in the shield; a driving portion for rotationally driving the winding-up portion; a rotation detecting portion for detecting the rotation of the winding-up portion; and a controller for controlling said driving means so that a cumulative rotation amount of the winding-up portion is counted on the basis of a detection result of said rotation detecting means and then a rotation amount of the winding-up means per unit winding-up length of the charging wire is decreased with an increase of the cumulative rotation amount. | 05-24-2012 |
20130020759 | SHEET CONVEYING APPARATUS, IMAGE FORMING APPARATUS AND IMAGE READING APPARATUS - The skew feeding amount of a sheet front end is calculated according to the difference between timings when activation sensors detect the sheet front end, and the skew feeding amount of the sheet side edge is calculated according to the difference between side edge positions of the sheet detected by the first side registration detection sensor or the second side registration detection sensor. Further, whether a sheet is a rectangular sheet or a non-rectangular sheet is determined before skew feeding of the sheet is corrected, and, when the sheet is determined to be a rectangular sheet, the skew feeding correcting portion is controlled based on one of the sheet side edge skew feeding amount and sheet front end skew feeding amount and the skew feeding correcting portion is controlled based on the sheet side edge skew feeding amount when the sheet is determined to be a non-rectangular sheet. | 01-24-2013 |
20130026706 | IMAGE FORMING APPARATUS - A sheet conveying apparatus and an image forming apparatus capable of high-precision sheet position correction is provided. | 01-31-2013 |
20130106044 | SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS | 05-02-2013 |
20140021678 | SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS - A sheet feeding apparatus and an image forming apparatus which can reliably feed even sheets having a non-uniform thickness to prevent excessive stacking. | 01-23-2014 |
20140054847 | SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS - There are provided a sheet feeding apparatus which, with a simple configuration, can suppress generation of noise during feeding of a sheet without having an affect on sheet separating performance, and an image forming apparatus which includes this sheet feeding apparatus. The sheet feeding apparatus includes: a feeding roller which feeds a sheet S; a separation roller which is pressed against the feeding roller and rotates in a reverse direction to a direction of feeding by the feeding roller to separate sheets, fed by the sheet feeding apparatus, one by one; a feeding rotational shaft which transmits rotational driving force to the feeding roller; and a roller dumper which is provided between the feeding roller and the feeding rotational shaft, and transmits the rotational driving force from the feeding rotational shaft to the feeding roller, while absorbing vibrations of the feeding roller. | 02-27-2014 |
20140291915 | IMAGE FORMING APPARATUS - An image forming apparatus includes a registration roller pair, which is arranged on a downstream side in a sheet feeding direction with respect to a nip portion of a sheet feeding roller and a separation roller, configured to cause a leading edge of a sheet, the sheet is conveyed while being nipped by the sheet feeding roller and the separation roller, to abut against the stopped registration roller pair to form warping in the sheet. And, a backup sheet is deformed toward a separation roller side by abutting against the sheet, which has been warped by abutting the leading edge of the sheet against the registration roller pair, from the separation roller side in a vicinity of the downstream side in the sheet feeding direction with respect to the nip portion. | 10-02-2014 |
Patent application number | Description | Published |
20100230011 | AUSTENITE-TYPE STAINLESS STEEL HOT-ROLLING STEEL MATERIAL WITH EXCELLENT CORROSION RESISTANCE, PROOF-STRESS, AND LOW-TEMPERATURE TOUGHNESS AND PRODUCTION METHOD THEREOF - An austenitic stainless steel hot-rolled steel material can be provided which has sea-water resistance and strength superior to conventional steel. Low-temperature toughness can be maintained, which is preferable in a structural member of speedy craft. The steel material can include an austenitic stainless steel hot-rolled steel material which excels in the properties of corrosion resistance, proof stress, and low-temperature toughness. In such austenitic stainless steel hot-rolling steel material, e.g., PI [=Cr+3.3(Mo+0.5W)+16N] ranges from 35 to 40, δ cal [=2.9(Cr+0.3Si+Mo+0.5W)−2.6(Ni+0.3Mn+0.25Cu+35C+20N)−18] ranges from −6 to +2, and a 0.2% proof stress at room temperature is not less than 550 MPa, Charpy impact value measured using a V-notch test piece at −40° C. is not less than 100 J/cm2, and the pitting potential measured in a deaerated aqueous solution of 10% NaCl at 50° C. (Vc'100) is not less than 500 mV (as it relates to saturated Ag/AgCl). | 09-16-2010 |
20120111457 | AUSTENITE-TYPE STAINLESS STEEL HOT-ROLLING STEEL MATERIAL WITH EXCELLENT CORROSION RESISTANCE, PROOF-STRESS, AND LOW-TEMPERATURE TOUGHNESS AND PRODUCTION METHOD THEREOF - An austenitic stainless steel hot-rolled steel material can be provided which has seawater resistance and strength superior to conventional steel. Low-temperature toughness can be maintained, which is preferable in a structural member of speedy craft. The steel material can include an austenitic stainless steel hot-rolled steel material which excels in the properties of corrosion resistance, proof stress, and low-temperature toughness. In such austenitic stainless steel hot-rolling steel material, e.g., PI [=Cr+3.3(Mo+0.5W)+16N] ranges from 35 to 40, δ cal [=2.9 (Cr+0.3Si +Mo+0.5W)−2.6 (Ni+0.3Mn+0.25Cu+35C+20N)−18] ranges from −6 to +2, and a 0.2% proof stress at room temperature is not less than 550 MPa, Charpy impact value measured using a V-notch test piece at −40° C. is not less than 100 J/cm2, and the pitting potential measured in a deaerated aqueous solution of 10% NaCl at 50° C. (Vc'100) is not less than 500 mV (as it relates to saturated Ag/AgCl). | 05-10-2012 |