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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8180272 | Movable trail edge sensor for duplex registration A print device for registering a printable medium during a duplex printing process. The print device includes a controller, at least one leading edge sensor operably connected to the controller, the at least one leading edge sensor configured to detect a leading edg... | 05/15/2012 |
| 8126386 | Sheet feeder, image forming apparatus and sheet feeder control method A sheet feeder includes a sheet feed roller provided at a position of the upstream side of an aligning roller along the sheet conveying direction, a clutch to transmit and cut off the driving force from a driving source to rotate the feed roller, a rotary shaft conn... | 02/28/2012 |
| 8121530 | Image forming method and image forming apparatus In an image forming method, an electrostatic latent image formed on a surface of a photoreceptor is developed into a developer image with a developer, and a printing paper transported on a transfer belt is brought into contact with the surface of the photoreceptor s... | 02/21/2012 |
| 8027629 | Image forming apparatus and image forming system An image forming apparatus of the present invention is arranged so that plural sheets of paper are conveyed to a main conveying path and a sub-conveying path at the time of double-side image formation. In performing double-side image formation jobs on plural sets of... | 09/27/2011 |
| 7912417 | Image forming apparatus and conveyance device An image forming apparatus includes: an image forming part; a first conveyance roller that conveys a recording medium to the image forming part; a forward/reverse-rotatable second conveyance roller, located between the first conveyance roller and the image forming p... | 03/22/2011 |
| 7899385 | Image forming apparatus An image forming apparatus including a medium storage portion, a supply roller, a conveyance roller, a drive device and a transmission device is provided. The supply roller is rotary driven in a forward direction as a rotating direction to convey the recording mediu... | 03/01/2011 |
| 7817957 | Double feed sensing device, double feed determining method and image forming apparatus The invention provides a double feed sensing device capable of sensing double feed of paper sent out for the first time. The double feed sensing device includes a thickness sensing unit for sensing thickness of cut paper conveyed, a rigidity sensing unit for sensing... | 10/19/2010 |
| 7792479 | Image forming apparatus with error correction for length of transfer sheet An image forming apparatus is configured so that a first detection position and a second detection position are set along the direction of conveying a transfer material between adjacent conveyance rollers. The image forming apparatus has four sensors, two of which a... | 09/07/2010 |
| 7778588 | Sheet feeding apparatus and image forming apparatus A sheet feeding apparatus, having: a first sheet feeding member to press a top surface of a sheet for sending out a sheet stored in a sheet storing section; a second sheet feeding member arranged on a downstream side of the first sheet feeding member with respect to... | 08/17/2010 |
| 7756463 | Image recording apparatus and its control method After a skew of a sheet as a recording medium is corrected by correcting a sheet curve, exposure writing on a photosensitive drum is started synchronously with re-driving of resist rollers. When a sheet front edge is detected by a sensor, sheet conveyance is continu... | 07/13/2010 |
| 7734243 | Image forming apparatus In an image forming apparatus of the present invention, an idle roller once stops rotating when a front edge of a sheet conveyed reaches the idle roller. The idle roller restarts rotating at such a timing that a front edge of a toner image on a photoreceptor and a f... | 06/08/2010 |
| 7720429 | Image forming apparatus including shutter arm unit An image forming apparatus includes a printing unit and a shutter arm unit. The shutter arm unit includes a shutter arm that swings to first and second positions, and a stopper arm, connected to the shutter arm, which protrudes toward a transportation path when the ... | 05/18/2010 |
| 7711309 | Sheet feeding device and a cleaning member in sliding contact with a conveying unit A sheet feeding device includes: a conveying member of a conveying unit which conveys a sheet; and a cleaning member which is in sliding contact with a circumferential surface of the conveying member to clean the circumferential surface. The conveying member and the... | 05/04/2010 |
| 7689159 | Sheet transport apparatus and image forming apparatus including the same A sheet transport apparatus includes a pair of rollers for transporting a sheet and a sheet detection device for detecting the sheet transported by the pair of rollers. The sheet detection device includes a flag that is displaceable when urged by the sheet transport... | 03/30/2010 |
| 7684748 | Unit drawing mechanism and image recording apparatus A unit drawing mechanism according to the invention is adapted for installation in a main unit. The mechanism includes a first and a second units, a plurality of supports, and a load-applying member. The first unit is movable along a first direction toward front of ... | 03/23/2010 |
| 7593683 | Paper arranging device, and electrophotographic image forming apparatus with the same A paper arranging device includes a driving roller and an idle roller disposed adjacent to each other to form a nip, a first sensor to sense a location of moving paper, and a lever having a first end which extends to a perimeter of the nip to block a tip of the pape... | 09/22/2009 |
| 7583926 | Image recording apparatus An image recording apparatus includes first to fifth transport paths. The first path transports a sheet from a sheet feeding section to a sheet output section through a first confluence, an image recording section, a first bifurcation, and a second confluence in tha... | 09/01/2009 |
| 7570914 | Image forming apparatus and a paper feeding apparatus for the same An image forming apparatus feeds a paper picked up by a pickup roller directly to a photoconductive drum and controls a linear velocity of the pickup roller so that it is slower than that of the photoconductive drum. The different linear velocities of the pickup rol... | 08/04/2009 |
| 7548721 | Sheet transferring device and image forming device A sheet transferring device includes a feeding roller configured to feed a sheet; a transferring roller configured to transfer the sheet to the feeding roller; a sheet sensor configured to detect the sheet at a sheet transferring part from the transferring roller to... | 06/16/2009 |
| 7474872 | Sheet transport apparatus and image forming apparatus including the same A sheet transport apparatus includes a pair of rollers for transporting a sheet and a sheet detection device for detecting the sheet transported by the pair of rollers. The sheet detection device includes a flag that is displaceable when urged by the sheet transport... | 01/06/2009 |
| 7450896 | Sheet transport apparatus and image forming apparatus A sheet transport apparatus includes a fixed driving roller and a driven roller capable of coming into contact with or being separated from the driving roller, the driving roller and driven roller being capable of rotating and transporting a sheet interposed therebe... | 11/11/2008 |
| 7447478 | Image forming apparatus An image forming member has a first sheet conveying member arranged at upstream side of a sheet conveying path of a sheet material, a second sheet conveying member arranged at downstream side of said sheet conveying path, a guide member which is provided between the... | 11/04/2008 |
| 7444110 | Determining a media feature A method for determining a media feature includes directing light toward a media path and a reflector. The reflector converges the light on a light detector. Intensity data is collected from the light detector and analyzed to determine the media feature. ... | 10/28/2008 |
| 7437118 | Image forming apparatus with printing medium guide An image forming apparatus has a photosensitive body on which an electrostatic latent image is formed. A developing unit develops the electrostatic latent image on the photosensitive body with a developer to form a developer image. The developer image on the photose... | 10/14/2008 |
| 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 |
| 7417775 | Image forming apparatus An image forming apparatus comprises a paper feeder controller, a scanner and a printing controller. The paper feeder controller executes first paper and second paper feeding processes. The scanner executes a manuscript scanning process for optically scanning a manu... | 08/26/2008 |
| 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 |
| 7403740 | Sheet feeding unit and image forming apparatus A sheet feeding unit according to the invention includes a sheet stacking tray on which the sheet is stacked, a sheet feeding device which feeds the sheet stacked on the sheet stacking tray, and a unit frame which supports the sheet stacking tray and the sheet feedi... | 07/22/2008 |
| 7400846 | Image forming apparatus having guide supporting brackets including paper transportation guides An image forming apparatus includes an apparatus main body, a photoconductive drum, a transfer roller, a pair of guide supporting brackets, and an urging member. The guide supporting brackets include two paper transportation guides, and the brackets are mounted on b... | 07/15/2008 |
| 7395025 | Feeding device and feeding method, and image forming device A paper transporting apparatus transporting continuous paper to a paper processing part that performs designated processing on the continuous paper includes a drive roller that transports the continuous paper in a forward direction with respect to the paper processi... | 07/01/2008 |
| 7391993 | Image forming device with interlocked mechanism A toner image formed on a photosensitive drum 12a in an image forming unit 12 is transferred to an intermediate transfer belt 11. The toner image of the intermediate transfer belt is transferred onto recording paper by a transfer roller | 06/24/2008 |
| 7389083 | Image forming apparatus and medium conveying method An image forming apparatus according to the present invention includes first and second conveying mechanisms disposed at a predetermined distance, a feeding roller for feeding an output medium for supporting a developer image to a predetermined position capable of h... | 06/17/2008 |
| 7356297 | Curved transfer assist blade Embodiments herein include a transfer assist blade that is adapted to bias media toward a marking device. The transfer assist blade is somewhat flexible and has a media contact edge positioned adjacent the marking device. The shape of the media contact edge comprise... | 04/08/2008 |
| 7356302 | Paper supply device and image forming device equipped with same A manual paper supply device is equipped with a paper shear prevention member 35 for preventing shear of the paper 9 loaded into the manual feed paper supply tray. A brush 36 is arranged on the paper shear prevention member 35 to make con... | 04/08/2008 |
| 7354038 | Jam suppressing sheet feeding device and image forming apparatus A sheet feeding apparatus includes a sheet tray, a pickup roller, a feed roller, a driving motor to drive the feed roller via a feed clutch, and a reverse roller connected to a reverse shaft driven by the driving motor via a torque limiter. The feed clutch is turned... | 04/08/2008 |
| 7346304 | Transfer device having guiding member that guides recording medium to transfer position A guiding member is disposed at a frame upstream of a transfer roller in a conveying direction, thereby guiding a recording medium to a transfer position. The guiding member has front and back surfaces. A guiding portion of the guiding member is configured to contac... | 03/18/2008 |
| 7343125 | Image forming apparatus An image forming apparatus is operable in a first mode where a toner images on one of a plurality of image bearing members are transferred to an intermediate transfer belt; and in a second mode where toner images on the image bearing members are superimposedly trans... | 03/11/2008 |
| 7339654 | Sheet conveying apparatus and image reading apparatus A sheet conveying apparatus is provided including a sheet feed tray on which sheets of a plurality of sizes are placed. A conveying unit conveys a sheet on the sheet feed tray to a predetermined processing position. A sheet position detector has a plurality of light... | 03/04/2008 |
| 7324766 | Cross-process charge uniformity scanner In a xerographic printing apparatus, feedback on surface charge at a plurality of locations across a length of a photoreceptor may be desirable to assess charge uniformity, for example, to ensure color consistency across multiple marking engines in tightly integrate... | 01/29/2008 |
| 7308227 | Paper arranging apparatus and electrophotographic image forming apparatus including the same Provided are a paper arranging apparatus and an electrophotographic image forming apparatus. The paper arranging apparatus of an electrographic image forming apparatus has a driving roller and an idle roller facing closely to each other and forming a nip therebetwee... | 12/11/2007 |
