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| Number | Title | Issue Date |
| 8177219 | Transmission mechanism and automatic sheet feeder using the same A sheet feeder has a transmission mechanism which includes an output gear mesh with a transmission gear train, and a switch element, disposed between the transmission gear train and the output gear, for switching a rotational direction of the output gear. The switch... | 05/15/2012 |
| 7931265 | Sheet feeder and image forming device provided with the same A sheet feeder includes a feed roller feeding a sheet while rotating in a feeding direction, a driving gear that rotates in a predetermined direction and transmits a driving force, a first gear mechanism transmitting the force to the feed roller to rotate the feed r... | 04/26/2011 |
| 7717416 | Paper sheet separation and transfer apparatus A paper sheet separation and transfer apparatus has a take-out roller which takes out stacked paper sheets onto a transfer path, a first separation unit, and a second separation unit. When the front end of a first paper sheet in the transfer direction reaches a nip ... | 05/18/2010 |
| 7637493 | Intermittent drive mechanism, sheet feeder, and image forming apparatus An intermittent drive mechanism capable of noise reduction is provided. The intermittent drive mechanism comprises a drive gear, a fragmental gear, a first cam, an operating arm, an operating-arm drive mechanism, and a brake mechanism. The fragmental gear includes a... | 12/29/2009 |
| 7533878 | Printer media transport for variable length media Printer (1) has a pivotally mounted autocompensating system (19) mounted at an intermediate position in paper guide (17). That system (19) is driven by a motor (40)through a slip drive (70, 72, 74). The motor also drives pap... | 05/19/2009 |
| 7472903 | Sheet feeder A sheet feeder includes a roller configured to feed a plurality of sheets one by one in a sheet feeding direction to a feed path, and a motor configured to drive the roller. The sheet feeder also includes a drive transmission mechanism configured to transmit a drivi... | 01/06/2009 |
| 7455286 | Sheet separation using two torque motors Various embodiments of a sheet separation system are disclosed. ... | 11/25/2008 |
| 7448611 | Pickup device used with image forming apparatus A pickup device used with an image forming apparatus includes a driving roller, a pickup roller that receives a driving force from the driving roller and picks up sheets of paper one by one, and a lockup prevention device that is placed inside the pickup roller and ... | 11/11/2008 |
| 7431283 | Card-feeding mechanism A card-feeding mechanism has two rollers positioned before a limiting device, and a roller and a sensor positioned after the limiting device. When a motor rotates clockwise, a transmission device drives the three rollers simultaneously to deliver a card from a front... | 10/07/2008 |
| 7431284 | Sheet transfer apparatus A sheet transfer apparatus includes a first roller, a second roller and a power train. The first roller is configured to be rotatably driven at a first surface speed. The second roller is spaced from the first roller such that the first roller and the second roller ... | 10/07/2008 |
| 7422205 | Original feeding apparatus and image reading apparatus An original feeding apparatus includes a feeder tray for stacking originals, a separating device for separating the originals into a single sheet, and a feeding device for feeding the original to the separating device. The feeding device is raised or lowered between... | 09/09/2008 |
| 7384033 | Feed roller unit and conveyance apparatus A feed roller unit comprises: a feed roller that abuts against a topmost sheet of a stack of sheets, and rotates to convey the topmost sheet in a conveyance direction, the feed roller being provided to be displaceable in a direction reverse to the conveyance directi... | 06/10/2008 |
| 7380782 | Automatic document feeder having a replaceable friction roller assembly An automatic document feeder (ADF) having a replaceable friction roller assembly. The ADF includes a housing having a back plate which may be raised and a base pivotalby connected to the back plate, a supporting element disposed on the housing and having a shaft hol... | 06/03/2008 |
| 7370857 | Paper feeding apparatus A paper feeding apparatus includes a housing accommodating a plurality of papers, a pickup unit, a rotation transmitting member and a torque transmitting member. The pickup unit has a pickup lever, a driving shaft rotatably supporting the pickup lever, and a pickup ... | 05/13/2008 |
| 7364152 | Sheet feeding apparatus and image forming apparatus In the course of sheet feeding by a sheet feeding roller, a depressing arm is depressed by a sheet feeding cam provided coaxially with the sheet feeding roller, whereby a depressing pawl is moved in a direction to be engaged with the stacking plate pawl of an stacki... | 04/29/2008 |
| 7357386 | Device and method for feeding paper A paper feed apparatus of the present invention includes a pick mechanism for successively taking out, by use of a pick roller 1, a plurality of sheets of paper stacked on a chute from the bottom side thereof, leading ends of the sheets being aligned by means... | 04/15/2008 |
| 7357584 | Sheet transport device Disclosed is a sheet transport device having: a registration roller to transport a sheet after correcting a skew of the sheet; a drive source to drive the registration roller; a frame body; and a rotation resisting body which is connected to the registration roller ... | 04/15/2008 |
| 7355761 | Driving apparatus and method for image scanning and/or forming machine A driving apparatus for an office machine includes a driving motor rotating in first and second directions, a power transfer part transferring a power of the driving motor to a convey unit, a document discharge unit and a document supply unit, and a controller contr... | 04/08/2008 |
| 7320464 | Original reading device with controller An original reading device includes a registration roller located upstream of an original reading position in an original transport path for adjusting the timing of feeding an original to the original reading position. There is at least one original feed roller for ... | 01/22/2008 |
| 7305208 | Image heating apparatus with discharge occurring between a charge eliminating member and a pressure roller The image heating apparatus for heating a toner image formed on a recording material, includes a rotatable member, a pressure roller which contacts with the rotatable member, wherein the recording material is heated while being conveyed by a nip portion between the ... | 12/04/2007 |
| 7296790 | Automatic document feeding apparatus An automatic document feeding apparatus includes a shaft, an ADF roller for feeding documents piece by piece by cooperating with a separating member, and a power switching member for selectively connecting a driving member with the shaft. The power switching member ... | 11/20/2007 |
| 7277668 | 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... | 10/02/2007 |
| 7270323 | Sheet feeding device with two cams A sheet supplying/feeding device includes a sheet placing plate that receives at least a tip of a sheet, a feeding unit that feeds the sheet while being in contact with the sheet placed on the sheet placing plate, and a driving unit that drives the feeding unit. Pre... | 09/18/2007 |
| 7267333 | Power transmission device and sheet feeding apparatus equipped therewith A power transmission device includes a driving gear having gears over an entire circumferential surface thereof, a follower gear including an intermittent gear having a toothless portion, and a controller for controlling the follower gear to be engaged with or disen... | 09/11/2007 |
| 7261289 | Automatic document feeder for image forming apparatus An automatic document feeder for an image forming apparatus comprising a separation roller for separately carrying a plurality of paper sheets picked by a pickup roller, a feeding roller for carrying the paper sheets, a discharge roller for discharging the scanned p... | 08/28/2007 |
| 7252283 | Paper-pickup clutch of automatic paper-feeding device A paper-pickup clutch of an automatic paper-feeding device includes a clamping member and a clamping-force adjusting member and can be applied to image processors such as printers, copiers or scanners. The automatic paper-feeding device includes a shaft and a paper-... | 08/07/2007 |
| 7249760 | Paper pickup mechanism A paper pickup mechanism mounted in a feeder includes several driving gears, connecting rods, a pickup roller and a twist restricting gear. By means of the twist restricting gear, the paper pickup mechanism provides an equal pickup force under different paper loads.... | 07/31/2007 |
| 7234369 | Continuously adjustable self-lubricating mill roll drive Described is an adjustable roll drive including a fixed drive cylinder having a fixed drive gear, a fixed intermediate gear rotated by the fixed drive gear, a movable intermediate gear rotated by the fixed intermediate gear, and a movable driven cylinder having a mo... | 06/26/2007 |
| 7232124 | Sheet separator A sheet separator includes an advancing roller driven to rotate to move a sheet forwards along a sheet path, and a reversing roller driven to rotate to move a sheet backwards along the path. The reversing roller and advancing roller are mounted adjacently and are re... | 06/19/2007 |
| 7229070 | Rotary clutch device and sheet feeder using the same A rotary clutch device includes: a tooth-partially-lacking gear that can mesh with a drive gear and is given initial rotation force; a rotatable cam body that is concentric with the tooth-partially-lacking gear, having an engagement step; and an elastic body. An eng... | 06/12/2007 |
| 7225697 | Power transmission arrangement A power transmission arrangement includes a shaft, a first gear mounted on the shaft, a plate supported by the shaft and rotatable between a first position and a second position, a second gear supported by the plate and engaged with the first gear, and a third gear ... | 06/05/2007 |
| 7207666 | Printer ink supply system An ink supply station for use with a first ink supply and a second ink supply includes a first module and a second module releasably coupled to the first module. The first module includes a first chassis and a first movable member supported by the chassis, wherein m... | 04/24/2007 |
| 7195238 | Sheet conveying apparatus and image forming apparatus A sheet conveying apparatus for conveying a sheet using a sheet conveying unit arranged along a sheet conveying path has a skew detecting unit for detecting skew of the sheet conveyed along the sheet conveying path with respect to a sheet conveying direction, a skew... | 03/27/2007 |
| 7178914 | Media pre-feed in intermittent printer A printer (1) in which a first sheet (5) to be imaged by printhead (3) is followed by a trailing media sheet. The first sheet is stopped intermittently so that the printhead can traverse the first sheet to print a partial image. The trailing med... | 02/20/2007 |
| 7168700 | Sheet feeder apparatus and method with throughput control A sheet feeder apparatus and method with throughput control. By varying the speed at which sheets are fed from a supply, the sheet feeder apparatus and method assures that the throughput capacity of a downstream operation is never exceeded. Speed is varied based upo... | 01/30/2007 |
| 7165765 | Sheet feeding apparatus and recording apparatus A sheet feeding apparatus for separating and feeding a plurality of sheets stacked on a sheet stacking portion one by one includes feeding means for feeding the plurality of sheets stacked on the sheet stacking portion, separation means for separating the sheets one... | 01/23/2007 |
| 7152858 | Guiding and positioning apparatus and method thereof A guiding and positioning apparatus for accurate guiding and input of a print media sheet to a business machine. The guiding and positioning apparatus includes a rotating shaft, a retaining member, a guiding member, a sliding member, a roller, a first spring, a seco... | 12/26/2006 |
| 7136202 | Apparatus for feeding documents in a facsimile An apparatus for feeding documents in a facsimile includes a pickup roller for picking up documents one by one, a white roller that faces a read module and rotates, the read module for reading data from the documents transferred by the pickup roller, a discharge rol... | 11/14/2006 |
| 7131719 | Inkjet printer An inkjet printer includes inkjet heads, pumps, a drive source, a derive shaft, power transmission mechanisms, and a selection unit. The pumps supply ink to the inkjet heads to recover an ink ejection condition of the inkjet heads. The drive source rotates the drive... | 11/07/2006 |
| 7128317 | Moveable media dam A moveable media dam comprises a media dam rotatably connected to a dam shaft, the dam shaft extending from a lever. An arm has at least one camming member and the lever is engaged by the at least one camming member. The arm operably engages a gear train and further... | 10/31/2006 |
