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Class 271/265.01 - Responsive to sheet sensor


Subclass of Class 271 - Sheet feeding or delivering
Definition: Subject matter comprising a device which detects the presence
No. of patents: 433
Last issue date: 05/29/2012


1                      
NumberTitleIssue Date
8186675Systems and methods for controlling substrate flatness in printing devices using vacuum and/or the flow of air
Systems and methods are provided for controlling substrate flatness for sensor measurements in printing device using vacuum and/or the flow or air. A source of low pressure, such as a vacuum, may be provided. A printed sheet of media may be transported between upper...
05/29/2012
8172227Sheet detecting device and image forming apparatus
A sheet detecting device includes a rotation unit having an abutment surface, a positioning unit configured to position the rotation unit in a standby position where the leading edge of the conveyed sheet abuts the abutment surface, and a detecting unit configured t...
05/08/2012
8152167Printing apparatus having optical sensor unit
A printing apparatus has a sensor unit which optically detects, at a measurement position, a surface of a sheet, for measuring a moving state of the sheet. The sensor unit measures the moving state of the sheet when the sheet is located at the measurement position, ...
04/10/2012
8136812Sheet stacker and finisher furnished with the same
Affords sheet stacking device that, in stacking sheets onto a loading tray, enables stacking of the sheets always in the correct posture regardless of the nature of the sheets' surface material. The sheet stacking device includes a tray unit located downstream of a ...
03/20/2012
8020862Sheet conveyance device, image forming apparatus and image reading apparatus
A sheet conveyance device according to an aspect of the invention includes a guide member and a flexible guide assist member. The guide member constitutes a conveyance path for guiding a conveyed sheet. The guide assist member is provided in the guide member, the gu...
09/20/2011
8011657Sheet transport device and image forming apparatus employing the same
A sheet transport device comprises a sheet feeding path through which a sheet is transported, first and second elements which are located face to face with a particular point in the sheet feeding path and have first and second surfaces, respectively, constituting pa...
09/06/2011
7871074Paper carrying apparatus and image forming apparatus having the same
The paper carrying apparatus includes a first paper carrying mechanism (first carrying mechanism), a second paper carrying mechanism (second carrying mechanism) provided on the downstream of the first carrying mechanism in a carrying direction, an electric motor tha...
01/18/2011
7871073Sheet conveying device, and image forming apparatus including same
A sheet conveying device, that can be included in an image forming apparatus, includes a drive source, a drive roller driven by the drive source, a driven roller to press against the drive roller and rotate with the drive roller, an angular velocity detector to dete...
01/18/2011
7753371Media jam and bent corner detector
This invention relates to a media jam and media bent corner detector, comprising: a carriage; a transducer operatively connected to or adjacent to the carriage; and a piezoelectric film beam operatively connected to the transducer such that a portion of the beam sub...
07/13/2010
7690651Image forming apparatus and remaining sheet detection method thereof
An image forming apparatus is provided that detects a sheet remaining between a transfer unit and fixing unit using a loop sensor. The loop sensor is configured to detect a loop of a sheet conveyed between the transfer unit and the fixing unit. The image forming app...
04/06/2010
7686302Feeder device for feeding media sheets
A feeder device for feeding media sheets along a feed path, including: (a) an accommodator for accommodating the media sheets; (b) a feed mechanism including (b-1) a roller that is to be held in contact with the media sheets accommodated in the accommodator a...
03/30/2010
7654525Reflective sheet detector
A reflective sheet detector includes first and second guide plates constituting a sheet travelling path, an emitter, a receiver and a reflecting portion. The emitter is disposed on a first side of the sheet travelling path and close to a first input opening of the f...
02/02/2010
7644921Image forming apparatus
An image forming apparatus in accordance with the present invention can include a conveying device capable of conveying a recording medium, a support shaft which capable of being movably supported between a medium sensing position near a conveyance path along which ...
01/12/2010
7607661Control device, conveyance control device, conveyance system and image forming system
The control device includes a target setter that sets the target travel distance of the driving object in every predetermined period when the driving object is moved, and an operation amount determiner that determines whether or not the operation amount calculated b...
10/27/2009
7600753Recording apparatus and medium transporting method
A recording apparatus includes a first transporting device, a second transporting device, and a recording device which performs recording on the medium transported by the first and second transporting devices. The recording apparatus includes: a controller which det...
10/13/2009
7503561Methods and devices for detecting the absence of a media sheet within an image forming device
The present application is directed to methods and devices for determining the absence of media sheets within an image forming device. In one embodiment, a support section configured to hold a stack of media sheets is positioned in an input area of the image forming...
03/17/2009
7448622Paper feeding control method for automatic document feeder
A method for an automatic document feeder which can control the feeding of a following sheet such that the following sheet can be delayed for a predetermined time when the interval between sheets is shortened, thereby maintaining a constant interval between the shee...
11/11/2008
7431291Delivery processing apparatus and image forming apparatus
The present invention relates to a delivery processing apparatus comprising an alignment stage, an aligning means having an alignment member operable to align a sheet on the alignment stage and to escape to a home position during a non-alignment period, a conveying ...
10/07/2008
7416180Paper 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 ...
08/26/2008
7410167Recording medium feeding method and image recording apparatus
A method for feeding a recording medium includes the steps of: feeding the recording medium along a sheet-feeding path by a unit feeding amount, detecting an entrance of a rear end of the recording medium into a jumping alarm area, dividing the unit feeding amount i...
08/12/2008
7404558Sheet supplying device and sheet processing device using detecting lever
A sheet supplying device has a sheet delivering roller for delivering sheets one by one; a feeding roller for feeding the sheet delivered by the sheet delivering roller; a pinch roller urged by the feeding roller to be rotated by the feeding roller; a detecting leve...
07/29/2008
7401779Sheet feeding apparatus
A sheet detecting apparatus provided with a light emitter and a light receiver for receiving light emitted from the light emitter through a sheet conveying path, wherein the light receiver detects any change in a quantity of light from the light emitter caused by a ...
07/22/2008
7396175Sheet carrier and image forming device
A sheet carrier, includes an upstream side sheet carriage part; a downstream side sheet carriage part; an overlapping detection part which is provided between the upstream side sheet carriage part and the downstream side sheet carriage part and is configured to dete...
07/08/2008
7392980Sheet feed device and image forming apparatus
A sheet feed device includes: a conveyor roller that rotates in a first direction; a separation roller rotatable in a second, reverse to the first direction, that nips a sheet with the conveyor roller; a sheet detector provided at a detecting position to detect a nu...
07/01/2008
7391043Self calibrating media edge sensor
Various edge detection arrangements are disclosed, including an edge detection method and arrangement that utilizes outputs of commonly illuminated reference and edge sensors as the inputs for a comparator. The reference sensor is configured to have a wide field of ...
06/24/2008
7384042Image forming device including mechanism to lock cover
When a cover body at a closing position is pulled up with respect to a main body, then a lock lever attached to the cover body abuts against a hook body of the main body, regulating a rattle of the cover body with respect to the main body. When a user lifts up a mul...
06/10/2008
7380788Sheet transporting device, sheet transporting method, and image recording device having the sheet transporting device
To provide a sheet transporting device which can control sheet transport also with respect to plural kinds of tab sheets different from each other in terms of a tab position in a vertical direction with respect to a transporting direction without increasing the cost...
06/03/2008
7370862Apparatus for detecting double-feed of paper
Disclosed are an apparatus and method for detecting double-feed of paper to prevent banking accidents or jam in a paper handling machine for handling paper, sheets of currency note are not separated by a sheet separating means and thus plural sheets are double fed. ...
05/13/2008
7367732Method and apparatus for controlling the sheet feeding speed in a printer
In order to adjust a position of a cut sheet when the cut sheet begins to be sent to a printing positions a leading edge of the cut sheet is fed towards a pair of sending rollers for sending the cut sheet to a printing position, wherein the sending rollers are held ...
05/06/2008
7364251Inkjet recording apparatus and recording medium movement control method
An inkjet recording apparatus including: a recording head; a recording medium moving section; a position information detecting section synchronized with a movement of the recording medium moving section; a mark recording section for recording a mark on the recording...
04/29/2008
7364157Compact backnote dispensing device with banknote length sensor
A compact banknote dispensing device including a storage section for storing one or more banknotes, a discharging unit driven by a first motor for discharging banknotes one-by-one at a first speed, and a transporting unit driven by a second motor for receiving the d...
04/29/2008
7362891Automated 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
7357303Bill handling apparatus
When using an inexpensive deposit box in a provided bill handling apparatus, bills that can be deposited are increased irrespective of a limit in the number of bills that can be stacked in the deposit box. In a bill handling apparatus including a bill deposit/withdr...
04/15/2008
7357387Sheet feed device for feeding cut sheets while interposing shortened interval between successive fed two sheets
A sheet is firstly fed only by a sheet feed roller and then relayed to a transportation roller. When the transportation roller starts conveying the sheet, a motor coupled to the sheet feed roller is deenergized so that the sheet feed roller is not rotated by the pow...
04/15/2008
7349566Image processing network
An image processing network for processing image files and coupled to an outside data communication network comprising a plurality of remote image capture units, the units scanning documents and creating a plurality of image files of said documents; the image proces...
03/25/2008
7338042Sheet supplying apparatus
The uppermost original of a bundle of originals placed on a stacking tray is photographed by an area sensor, and on the basis of chroma saturation information of image information thus obtained, whether the original to be separated is a color original is discriminat...
03/04/2008
7339654Sheet 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
7328898Image forming apparatus including timing determination unit, and corresponding sheet feeding method
An image forming apparatus including a drive unit that drives a drive control unit that supplies a first drive current to the drive unit so as to acceleratingly drive an intermediate feeding roller, and supplies a current that is smaller than the first drive current...
02/12/2008
7320464Original 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
7300055Image forming apparatus
The object is to provide an image forming apparatus in which the copy sheet can be transferred with stable velocity and high accuracy even if there is variation in diameter due to machining tolerance. A pair of roller for feeding copy sheet pinching the sheet betwee...
11/27/2007
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