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...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.

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Class 271/10.05 - Selective drive (e.g., number of degree of rotation)


Subclass of Class 271 - Sheet feeding or delivering
Definition: Subject matter includes a device for permitting a certain
No. of patents: 41
Last issue date: 06/02/2009


1    
NumberTitleIssue Date
7540485Paper feeding apparatus
A paper feeding apparatus including a paper pickup roller assembly, a paper conveying roller assembly, a one-way driving assembly, and a reverse driving assembly is provided. The one-way driving and the reverse driving assembly are connected to a driving device, suc...
06/02/2009
7357388Image forming apparatus with recording medium support member adjustable in position for desired position of uppermost recording medium on support member
An apparatus for forming an image on a recording medium is disclosed which includes: a first drive source; a photoreceptor driven for movement by a driving force applied thereto from the first drive source; a support member supporting the recording medium to be fed ...
04/15/2008
7320463Device for feeding a processing section
A device for feeding a processing section with printed products includes a magazine and a feeding mechanism that includes a gripping mechanism and a conveying mechanism for removing the printed products from the magazine and feeding them to the processing section. T...
01/22/2008
7261289Automatic 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
7258337Flag block for a document feeding system
A system for feeding and transporting documents includes a feeder stage and a transport stage. Documents are fed singly, in order, from a stack of documents in a hopper assembly. A flag/flag block arrangement provides a force to move the documents along the hopper f...
08/21/2007
7229070Rotary 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
7182335Method of detecting overlaps in a postal sorting installation
The method of detecting overlapping postal items in a postal sorting installation (1) consists in detecting variation in the length of each item by causing each item to go past a plurality of proximity detectors (4, 5, 6, 7). The proximity detectors ar...
02/27/2007
7156387Sheet feeding apparatus, sheet conveying apparatus, and image reading appartus
A sheet feeding apparatus includes a sheet feeding device that picks up sheets from stacked sheets and feeds the sheets one by one, a drive device that drives the sheet feeding device, first and second detecting devices that detect the fed sheet, and a control devic...
01/02/2007
7151622Image reading and recording apparatus
An image reading and recording apparatus is provided with a carriage having the drive switching gear, which transmits driving power to a reading drive gear train only in a drive switching position. Then, when a reading command is issued, the carriage moves to this d...
12/19/2006
7125013Automatic feeding device and recording apparatus provided with such automatic feeding device
An automatic feeding device for feeding plural number of recording sheets stacked on a pressure plate by separating them one by one is provided with a sheet-feeding roller for carrying the recording sheets stacked on the pressure plate; a separation roller for separ...
10/24/2006
7114716Paper feeder
A paper returner is placed in the vicinity of an end portion of a hopper for stacking a plurality of sheets of paper which faces a paper feeding roller, so as to be pivotable between a first position where the paper returner constitutes a part of the paper transport...
10/03/2006
7100912Paper feeding apparatus for a printer
Provided a paper feeding apparatus used with a printer includes a pickup roller which draws out a paper stacked in a cassette and conveys the paper to a printer, a conveying roller which conveys the drawn-out paper onto a paper feeding route, and a feeding roller wh...
09/05/2006
7050180Loading facility for small printer media
A printer having a media tray with a media support surface and a media edge registration surface. A removable media holder has a lower portion contacting the media support surface, and defines a media receptacle above the lower portion, and having a lateral opening ...
05/23/2006
6965750Image forming apparatus
An image forming apparatus of this invention is provided with a conveying guide that is curved in the direction reverse to the curved shape of a nip portion of a fixing unit in order for leading sheet paper that is vertically conveyed at the time of fixing in the ho...
11/15/2005
6942214Mail registration and feeding apparatus
This invention concerns a feeding and advancing apparatus in a document processing machine for aligning and registering flat articles against a registration wall. The articles are advanced through a first feeding apparatus that pushes them towards a registration wal...
09/13/2005
6685370Recording member feeding device with detecting means for improved precision and image forming apparatus containing same
A recording member feeding device feeds a recording member such as a sheet in an image recording apparatus such as a copying machine. The recording member feeding device has a feeding rotary unit, a driving unit for driving the feeding rotary unit, and a ...
02/03/2004
6609707Sheet feeding apparatus, and image forming apparatus and image reading apparatus provided with sheet feeding apparatus
The manual sheet feeding apparatus according to the conventional art employing a retard separating system requires a pick-up roller for feeding sheets one by one from the bundle of sheets, a mechanism for detaching the pick-up roller, a shutter, and a shu...
08/26/2003
6298778Sheet feeding device for a printer
A sheet feeding device for a printer, e.g., a stencil printer including an ink drum with a master wrapped therearound and a press drum one of which is pressed against the other during printing is disclosed. The sheet feeding device is capable of feeding a...
10/09/2001
6186491Sheet feeding apparatus
A sheet feeding apparatus includes a carrier portion, a suction belt, a servo motor, a blower, a solenoid valve, a pressure sensor, a position sensor, a belt hole sensor, and a controller. The carrier portion feeds a plurality of sheets of different sizes...
02/13/2001
6105954Sheet feeder for digitizing scanner
A sheet feeding mechanism for a digitizing scanner particularly adapted to feed transparent and translucent film sheets provides two pairs of feed rollers each located on an opposing side of the scanner camera's image line. A tray for supporting a feed st...
08/22/2000
6050562Stacked sheet feeder
A sheet feeder has a pair of rearward feed belts declining in a downstream direction at a first angle for supporting a rear portion of a stack of sheets and a forward feed belt declining in a downstream direction at a lesser angle than the first angle pos...
04/18/2000
6019363Document feeding device of a facsimile system
A document feeding device for transmitting the data of a document includes a feed roller for feeding successive sheets of document, a document sensor for sensing if the document sheet is loaded, a reading device for reading the data of the document and fo...
02/01/2000
5961112Paper feeding unit driving device for electrophotographic processor
A paper feeding unit driving device for an electrophotographic processor having a feed roller gear and a convey roller gear, a paper feed roller, and a convey roller, includes: a latch having first and second latch lugs and a first elastic member, a first...
10/05/1999
5941518Sheet feeder with variable length, variable speed sheetpath
A floating feedhead having a variable sheetpath for an electrophotographic printing machine. A feeder for feeding sheets from the top of a stack to a processor for a printing machine is disclosed. The feedhead is of a standard retard feed type having eith...
08/24/1999
5860645Sheet supplying apparatus
A sheet supplying apparatus which has a feed roller rotated in a sheet feed direction, a retard roller capable of being urged against the feed roller and adapted to separate sheets one by one between the retard roller and the feed roller, a first drive tr...
01/19/1999
5782468Transmission mechanism of a fax printer for picking up and feeding paper
A transmission mechanism is installed in a machine and driven by a motor to pick up and feed paper. The mechanism includes a transmission gear and a return gear turned by a motor through a reduction gear train, a rocker turned with the transmission gear t...
07/21/1998
5755435Document conveying arrangement in data processing apparatus
A data processing apparatus having an image reading head. A box-shaped casing has upper and lower cavities, with a hopper table slidably arranged in the upper cavity. The lower cavity is a stacker. A pick roller, a separator roller, and conveying rollers ...
05/26/1998
5749570Sheet conveying apparatus
The present invention provides a sheet conveying apparatus comprising a first rotary member for conveying a sheet, and a second rotary member disposed at a downstream side of the first rotary member in a sheet conveying direction and adapted to convey the...
05/12/1998
5704606Sheet feeding apparatus for a printer
A sheet feeding apparatus for use in a printer is disclosed. The apparatus according to a preferred embodiment of the present invention includes a pick-up gear coaxially linked with a pick-up roller for picking up a sheet; a feed gear coaxially linked wit...
01/06/1998
5628503Paper feeder
A paper feeder for use in an image forming apparatus for forming images on a printing paper includes a primary paper feeding mechanism which sends out printing sheets one by one at a predetermined speed and a secondary paper feeding mechanism which sends ...
05/13/1997
5597154Automatic document feeder with position compensating device
An automatic document feeder is formed of a transfer device having a transfer belt situated above a platen to transfer a sheet on the platen, and a belt motor for actuating the transfer belt, a sheet detecting device situated near the transfer belt for de...
01/28/1997
5476254High speed sheet feeder with improved stack advance and sheet feed mechanism
A high speed sheet feeder comprises a support for supporting a stack of sheets. The sheets are driven by a backing plate assembly along the support toward a singulator. The backing plate is driven by a drive member such as a drive chain positioned along t...
12/19/1995
5435537Cut sheet pick and feed mechanism with active sheet separation device
A printer includes an opening in communication with a tray receptacle for receiving a paper tray. The printer further includes a pick roller assembly; a separator shaft including a first separator roll; an arm structure connecting the pick roller assembly...
07/25/1995
5431382Fabric panel feed system
A fabric panel loader for automatically feeding a fabric panel from a stack of fabric pieces to a work station. The apparatus includes a fabric pickup assembly for removing the fabric panel from the stack of fabric pieces and transferring the panel to a s...
07/11/1995
5211690Transmission clutch and recording apparatus which uses the transmission clutch
A recording and reproducing apparatus includes a sheet supply mechanism, a sheet transporting mechanism, an image recording mechanism and a sheet discharging mechanism. The mechanisms are driven by a rotary driver which transmits a driving force through a...
05/18/1993
5203554Plurality document feeding apparatus and method for copying machines
A document fed from a document loading tray is first transported into one branch transport path for invention of the transporting direction thereof, and then is guided through the other branch transport path and transported on to a document scanning area....
04/20/1993
5176375Sheet feeding apparatus
There is described a sheet feeding apparatus having a stacking tray on which sheets are stacked, a first sheet feeding rotary member for supplying a sheet from the stacking tray, and a second sheet feeding rotary member for feeding the sheet from the firs...
01/05/1993
5069438Paper tray support and paper feed for reproduction apparatus
A paper cassette support and associated paper feed for reproduction apparatus are assembled as a module. The paper cassette support is made of a resinous material which includes carbon fibers to minimize the deposit of electrostatic charge and self-lubric...
12/03/1991
4693460Automatic garment portion loader
A garment portion loader utilizes a plurality of photo-electric sensors to determine the positions of garment portions at selected stations including a delivery assembly which supplies garment portions for loading, a pick-up assembly which removes garment...
09/15/1987
4660821Method of and apparatus for attaching fly strips to a slide fastener chain
Automatic assembly for sewing flypiece to a continuous slide fastener chain includes a sewing machine, a gapping device from which the continuous chain having element-free gaps formed at regular intervals therealong is fed to the sewing machine, and a fly...
04/28/1987
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