Patent application number | Description | Published |
20100187755 | ANGLED PRESSURE ROLL USED WITH VACUUM BELTS - An apparatus comprises a belt and a pressure roll contacting the belt. The pressure roll comprises at least two roll segments connected to a common axle and contacting the belt. The roll segments are offset from one another along the belt. | 07-29-2010 |
20100320677 | SEGMENTED RIGID PLATE BELT TRANSPORT WITH A HIGH MOTION QUALITY DRIVE MECHANISM - A vacuum transport includes a segmented, rigid or solid articulated belt combined with a vacuum plenum in each segment of the belt. Using a rigid segmented belt with a vacuum plenum connected to each segmented belt section eliminates ordinarily encountered drag friction in conventional vacuum transports by reducing the force necessary to move the belt with media thereon while simultaneously improving the motion quality of the move by driving the articulated rigid belt from the top side of the belt in a flat section. | 12-23-2010 |
20110222092 | METHOD AND APPARATUS FOR LIFTING AN ELEVATOR PLATE OF A MEDIA TRAY IN AN IMAGE PRODUCTION DEVICE - A method and apparatus for lifting an elevator plate of a media tray in an image production device is disclosed. The method may include receiving a request to print a print job using stacked media from one of one or more media trays, initiating lifting of the leading edge of the elevator plate so that the stacked media may be received by the one or more feeder rollers, initiating printing of the requested print job from the one of one or more media trays, determining if the amount of stacked media in the one of the one or more media trays is less than a predetermined amount, wherein if it is determined that the amount of stacked media in the one of the one or more media trays is less than the predetermined amount, initiating lifting of both of the leading and trailing edge of the elevator plate so that the stacked media may be received by the one or more feeder rollers. | 09-15-2011 |
20120063828 | MEDIA DIVERTER APPARATUS - A multi-position letterbox media diverter that maximizes productivity includes a gate configured like a tomahawk to allow sufficient space for the diverter to operate immediately after the trail edge of a sheet passes the front edge of the gate and thereby increase gate actuation time. Reversible drives of an inverter are used to direct the sheet to a duplex path while another sheet is simultaneously directed by a lower integrated baffle portion of the gate to an output tray as needed. Thus, reducing the time required for the sheet to be in the inverter path before reversing sheet direction, thereby facilitating a reduction in required transport speed. | 03-15-2012 |
20120189999 | SYSTEM AND METHOD FOR USING OPTICAL CHARACTER RECOGNITION TO EVALUATE STUDENT WORKSHEETS - A system and method for evaluating worksheets are provided. The method includes accessing by a processor a digitally stored image of a worksheet that was administered to a student, wherein the worksheet includes the presentation of at least one problem for the student to respond to and each problem presentation includes an answer region that the student manually, mechanically, or electronically marked with an answer to the problem using a variety of alphanumeric characters. The method further includes generating expected answer data that provides an expected answer for each answer region; locating each answer region in the image; extracting from each located answer region the student's marks; processing the student's marks extracted from each answer region with character recognition processing; and storing the processed marks as student answer data. The student answer data is evaluated by comparing the student answer data with the expected answer data and generating corresponding evaluation data. | 07-26-2012 |
20120211938 | MEDIA ROTATION AND TRANSLATION MECHANISM - An improved rotator/translator mechanism includes multiple thin discs that mate with an idler roll to distribute nip pressure and spin at different rotational velocities to produce the same linear velocity at the nip and thereby reduce marking on certain media. | 08-23-2012 |
20120211939 | MEDIA ROTATION AND TRANSLATION APPARATUS - An improved media rotator/translator apparatus includes a cylinder on sphere nip. A series of beveled/spur gears are included, one of which rotates co-axially but independent to the drive roll shafts. This enables the drive rolls to be driven about their own axis while simultaneously allowing for rotation about the roll shaft axis. A ball idler is positioned above each drive roll providing media normal force. Thus, sheet translation, jogging, and rotation is obtained, but with no relative motion, thereby eliminating marking of certain media. | 08-23-2012 |
20120223116 | DUAL OPERATION DE-CURLER - Methods and devices control a de-curling apparatus. A roll of material is fed through a nip formed between a first roller having a concave shape and a second roller contacting the first roller. The second roller has a convex shape mirroring the concave shape. The methods and devices automatically and continually adjust the amount of pressure applied at the nip between the first roller and the second roller as the material is unrolled from the roll into the nip. | 09-06-2012 |
20120256369 | MAGNETIC COUPLED INTERMEDIATE IDLER - An improved rotator/translator apparatus includes a set of drive rolls driven by a pair of rotator discs. Idler rolls are positioned above each drive roll and spring loaded to provide the required normal force to drive sheets in any direction required. A pair of magnetic couplings couple the drive rolls with the idler rolls. The magnetic couplings are spaced with about a 5 mm gap to allow sheets to pass therethrough. The couplings allow the idlers and the drive rolls to stay aligned. Thus, driving media, registering media and rotating media in a transport is obtained, but with no relative motion or slip between the drive rolls/idler rolls and the media and a larger nip surface area, thereby eliminating marking of certain media. | 10-11-2012 |
20140041542 | ADJUSTABLE ROLL CROWNING METHOD FOR NIP CONTROL - A method and system for controlling a crown height associated with a nip profile includes adjusting pressure of a pressure roll. This may influence the shape of the pressure roll which may influence the nip profile. This may help prevent wrinkling and extend the life of the pressure roll. The pressure roll may be configured to have a varying wall thickness across a width of the pressure roll. The pressure roll may be used for a web application. | 02-13-2014 |
20140065874 | KEYWAY VISUAL ALIGNMENT FEATURE - A high-amperage connector with visual alignment features is described. The connector can comprise a male connector with a male skirt where the male skirt has two keys on an outer surface. At least one of the keys on the outer surface of the male skirt can have an alignment feature. The connector also comprises a female connector with a female skin where the female skirt has two keyways on an inner surface of the female skirt. At least one of the keyways can have a corresponding alignment feature located on the outer surface of the female skirt. The alignment features on the male skirt and the female skirt allow a user to easily align the two connectors before connecting them. | 03-06-2014 |
Patent application number | Description | Published |
20090309299 | 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 and a load distribution mechanism. Each drive roller may correspond to a corresponding idler roller. The load distribution mechanism may be configured to support the plurality of idler rollers and to equalize normal forces applied by each idler roller towards the corresponding drive roller. The load distribution mechanism may include a center loading spring in contact with the document processing device. | 12-17-2009 |
20100276875 | 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 and a load distribution mechanism. Each drive roller may correspond to a corresponding idler roller. The load distribution mechanism may be configured to support the plurality of idler rollers and to equalize normal forces applied by each idler roller towards the corresponding drive roller. The load distribution mechanism may include a center loading spring in contact with the document processing device. | 11-04-2010 |
20130138234 | MEDIA-BASED SYSTEM FOR FORMING THREE-DIMENSIONAL OBJECTS - Embodiments described herein are directed to generating physical three-dimensional color-accurate objects based on a 3D computer-based color model using printed layers of media. Embodiments can slice a 3D computer-based color model into 3D cross-sectional components, which retain the color information of the model. The 3D cross-sectional segments can be converted into 2D page images and the color information can be included in a plan image corresponding to the cross-sectional segments. Embodiments can print the page images to form cross-sectional prints which can be layered and trimmed to shape the prints into a color accurate physical object that represents the model. | 05-30-2013 |
20130292899 | System and Method for Identification of Media Sheet Size - A printer extracts a media sheet from a plurality of media sheets in a media supply and moves the media sheet along a media path. A plurality of sensors on the media path generate signals as the media sheet moves past the sensors, and the printer identifies a cross-process direction dimension of the media sheet with references to signals generated by the sensors. The printer identifies the dimension of the print medium without requiring media size sensors in the media supply. | 11-07-2013 |