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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 8132812 | Sheet discharging device and image forming apparatus A sheet discharging device that includes: a discharge roller that discharges a transported sheet to outside the sheet discharging device, the discharge roller being integrally formed with a flexible rotating shaft; first and second bearing members that rotatably hol... | 03/13/2012 |
| 8025292 | Transport apparatus and recording apparatus A transport apparatus includes: a transport roller unit that includes a drive transport roller and a driven transport roller to transport a transported medium to a downstream side of a transport direction; a driven roller holder that rotatably holds the driven trans... | 09/27/2011 |
| 8011658 | Exit shaft damping device to improve print quality A damping device for a media feed mechanism for a peripheral device includes a media feedpath having a feed shaft and a downstream exit shaft. In one form a damping hub is mounted on said exit shaft, a resilient biasing member extending between the damping hub and t... | 09/06/2011 |
| 7971878 | Sheet conveying device and image forming apparatus A sheet conveying device includes a torque estimation unit that, based upon a first load torque generated at a time that a sheet-like member passes through a first nip between a first driving roller and a first driven roller of an upstream sheet conveying unit, esti... | 07/05/2011 |
| 7967289 | Drive roll/idler roll nip release mechanism A drive roll/idler roll nip release mechanism utilizes the motor used for the drive nip, coupled with one-way clutches, to power the nip release as a sheet is handed off to a downstream nip. A drive shaft is coupled to a first one-way clutch in one direction and an ... | 06/28/2011 |
| 7946581 | Adjustable force pinch roller A pinch roller assembly useable in a document processing system is disclosed. The pinch roller assembly includes a pinch roller housing movable in a direction substantially perpendicular to a path of travel of documents. The pinch roller assembly also includes a pin... | 05/24/2011 |
| 7942411 | Sheet conveying apparatus and image forming apparatus A sheet conveying apparatus has a guide member disposed in a space on a side of a pair of rotating bodies. The guide member is supported such that the guide member can project outward from an outer periphery of one of the rotating bodies located upstream in a sheet ... | 05/17/2011 |
| 7905486 | Transportation apparatus for transporting transportation target medium, recording apparatus having the same, and control method for controlling the same The invention provides a transportation apparatus for transporting a transportation target medium in a predetermined transportation direction. The transportation target medium transportation apparatus according to an aspect of the invention includes: a transport dri... | 03/15/2011 |
| 7900919 | Sheet transport roller system A sheet transport roller system and methods for reducing sheet skew using a sheet transport roller system are disclosed. A sheet transport roller system for use in a document processing device may include a plurality of idler rollers, a plurality of drive rollers an... | 03/08/2011 |
| 7878504 | Roller mechanism and image forming device A roller mechanism includes a pair of rollers and an urging unit. The pair of rollers oppose one another sandwiching a conveyance path of a sheet material, and are provided to be capable of increasing and reducing an axis-to-axis separation thereof. The urging unit ... | 02/01/2011 |
| 7828292 | Sheet conveying device and image forming apparatus A spring is bridged between a pair of press levers, and a pair of driven rollers is pressurized uniformly, so that clamping and conveying force of the sheet of paper P on the front side and rear side by conveying rollers and the driven rollers is made equal such as ... | 11/09/2010 |
| 7793935 | Feeding paper apparatus and feeding paper method thereof A feeding paper apparatus includes a rod having a fulcrum member thereon, and two pressing unit disposed on the opposite ends of the rod. Each pressing unit has a connecting device disposed on the rod, a buffering device movably and pivotally disposed on the connect... | 09/14/2010 |
| 7758044 | Image forming apparatus, sheet conveying device, and sheet conveying method A sheet conveying device is described for conveying, for example, a sheet bearing an image in an image forming apparatus. The sheet conveying device includes an upstream conveying roller pair, a downstream conveying roller pair, a sheet condition detector, and a pre... | 07/20/2010 |
| 7731189 | Paper guide adjusting mechanism and office machine using such mechanism A paper guide adjusting mechanism of an office machine includes a main body, a plurality of elastic elements, a transmission member, a plurality of fixing elements and a pressing plate. The main body includes a plurality of confining elements, which have respective ... | 06/08/2010 |
| 7726650 | Automatic document feeder having mechanism for releasing paper jam The present invention relates to an automatic document feeder having a mechanism for releasing paper jam by disconnecting the transmission device. The automatic document feeder includes a driving motor, a transmission device, a plurality of paper transfer rollers, a... | 06/01/2010 |
| 7690652 | Image formation device and paper feed mechanism An image formation device includes an image formation unit and a paper feed mechanism. The image formation unit is configured to print an image on a recording paper. The paper feed mechanism includes a feed roller, a press roller, cylindrical press rings and press r... | 04/06/2010 |
| 7661674 | Feeding device and image recording apparatus equipped with the feeding device A feeding device including a drive roller and a driven roller opposed to the drive roller and biased toward the drive roller, such that the drive and driven rollers cooperate to feed a sheet while holding the sheet therebetween. The driven roller includes a toothed ... | 02/16/2010 |
| 7658382 | Image recording apparatus that supports conveying roller via rolling bearing An image recording apparatus includes a casing, an image recording unit, a first conveying unit, a second conveying unit, a first support member, and a second support member. The first support member is supported by the casing. The second support member rotatably su... | 02/09/2010 |
| 7654528 | Sheet feed mechanism A sheet feed mechanism is provided. In a sheet feed mechanism, a first sheet feeding device includes a first sheet feed roller and a first pressure contact roller that can be in pressure contact with the first sheet feed roller. The sheet feed mechanism further incl... | 02/02/2010 |
| 7628401 | Ejecting roller assembly for use in automatic document feeder The present invention relates to an ejecting roller assembly for use in an automatic document feeder to adaptively adjust the nip force between the follower roller and the driving roller in response to input and output of the paper sheet, there effectively preventin... | 12/08/2009 |
| 7621529 | Printing medium feeding device, printing apparatus, and liquid ejecting apparatus A printing medium feeding device includes: a driving roller having a roller circumferential surface coming in contact with a printing medium to apply a feeding force to the printing medium around a core line of a rotation shaft and rotating to feeding the printing m... | 11/24/2009 |
| 7621528 | Sheet conveyor, image forming apparatus having sheet conveyor, and sheet conveying method A sheet conveyor includes a first roller and a second roller pressurized to the first roller to hold and convey a sheet, wherein when the sheet is held between the first roller and the second roller, the first roller and second roller are separated at a space equiva... | 11/24/2009 |
| 7591467 | Sheet detecting device for image recording apparatus A sheet detecting device includes a follow roller, an urging member, first and second support members, and a detecting unit. The second support member rotatably supports the follow roller and supports the urging member. The second support member is supported on the ... | 09/22/2009 |
| 7559550 | Paper-discharging apparatus used with an image-forming device A paper-discharging apparatus used with an image-forming device provided with one or more paper-discharging rollers and one or more idle rollers includes a supporting plate installed in the paper-discharging port side of the body of the image-forming device, a suppo... | 07/14/2009 |
| 7527264 | Image recording apparatus having conveying device for conveying recording medium A conveying device of an image recording apparatus includes a drive roller, a follow roller, an urging member, a bearing member, a pivoting support member, and a driving unit. The urging member applies pressure to the follow roller for pressing the follow roller aga... | 05/05/2009 |
| 7523933 | Adjustable force driving nip assemblies for sheet handling systems An adjustable force driving nip assembly for use in a sheet transport system of a document creating apparatus has a plurality of adjustable force driving nips aligned and spaced transversely across the sheet travelling path of the sheet transport system. Each drivin... | 04/28/2009 |
| 7506870 | Drive nip release apparatus In embodiments herein one or more cams are operatively connected to corresponding ones of idler rollers within nip drive assemblies. As the cams rotate, the cams move the idler rollers between a first position biased against the drive rollers and a second position o... | 03/24/2009 |
| 7500670 | Sheet conveying device and image forming apparatus A spring is bridged between a pair of press levers, and a pair of driven rollers is pressurized uniformly, so that clamping and conveying force of the sheet of paper P on the front side and rear side by conveying rollers and the driven rollers is made equal such as ... | 03/10/2009 |
| 7487967 | Sheet conveying device and image forming apparatus including the same A sheet conveying device for an image forming apparatus of the present invention includes a cover hinged to the casing of the apparatus and supporting a roller shaft on which a drive roller is mounted. A driven roller and a positioning section for positioning the dr... | 02/10/2009 |
| 7448624 | Paper feeding device of image forming apparatus and image forming apparatus having the same Provided is a paper feeding device. The paper feeding device includes an image forming unit, a paper feeding unit to provide a transfer force to a first side and a second side opposite to the first side. The paper feeding unit has a roller portion to transfers the p... | 11/11/2008 |
| 7431292 | Medium conveying apparatus A medium conveying apparatus has: a conveying roller shaft arranged so as to be movable vertically; a pressing member which presses the conveying roller shaft in plural positions; and an urging member which urges the pressing member toward a conveying path of a medi... | 10/07/2008 |
| 7429042 | Nip roller force adjustment mechanism An apparatus for conveying a substrate or sheet through a printing machine comprises a drive roller and a baffle assembly forming a path for the substrate past the drive roller. The baffle assembly includes an idler roller having an axle rotatably supported within t... | 09/30/2008 |
| 7427060 | Sheet conveying device, image forming apparatus and method for conveying sheet The sheet paper conveying device comprises: paper supply rollers at least part of which rotate to convey the sheet paper in a prescribed direction; separation rollers that rotate in the direction reverse to the sheet paper conveying direction or rotates jointly with... | 09/23/2008 |
| 7427065 | Printer A sheet-feeding mechanism of a printer conveys a recording sheet nipped between a first sheet-feeding roller and a first pressing roller towards a thermal head. At the start of a printing operation, a second pressing roller is disposed distant from a second sheet-fe... | 09/23/2008 |
| 7422320 | Recording medium conveying device with nipping force control A recording medium conveying device that conveys a recording medium to a recording area, includes a pair of first conveyor rollers that are provided upstream of the recording area and convey a recording medium by nipping the recording medium therebetween, a detector... | 09/09/2008 |
| 7384043 | Imaging apparatus with sheet transport system employing cam actuating system An actuator system for use with a sheet transport system having a first roller and a second roller. The actuator system includes an idler assembly and a drive assembly. The idler assembly is coupled to the first roller and is biased to hold the first roller in a clo... | 06/10/2008 |
| 7367733 | Actuated pressure roller in media transport An apparatus for transporting a sheet recording medium (12) has an entrance drive roller (16) paired with a corresponding entrance pressure roller (18) to form an entrance nip (14) for transporting the sheet recording medium (12) i... | 05/06/2008 |
| 7366338 | Automated document processing system using full image scanning A document processing system comprises an input receptacle for receiving documents. A transport mechanism receives the documents from the input receptacle and transports the documents past a full image scanner and a discrimination unit. An output receptacle receives... | 04/29/2008 |
| 7362891 | Automated document processing system using full image scanning A document processing system comprises an input receptacle for receiving documents. A transport mechanism receives the documents from the input receptacle and transports the documents past an image scanner and a discrimination unit. An output receptacle receives the... | 04/22/2008 |
| 7354034 | Sheet processing apparatus and image forming apparatus equipped with same A sheet processing apparatus is provided with a processing tray on which sheets are to be stacked and subjected to a processing, a stack tray provided in the downstream of the processing tray with respect to the sheet conveying direction on which sheets are to be st... | 04/08/2008 |
