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Class 400/636.3 - Including feed-roller having equalizing or pressure-adjusting means


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein a feed-roller* is urged (or
No. of patents: 65
Last issue date: 10/14/2008


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NumberTitleIssue Date
7434928Image forming apparatus
An image forming apparatus comprises a guide part guiding transportation of a recording medium after recording by a liquid droplet ejection head at a recording position, the guide part carrying plural spurs for holding the medium on which recording has been made at ...
10/14/2008
7422320Recording 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
7367264Method and apparatus for treating sheets including a vacuum roller for retaining sheets in curved configuration
An apparatus and method for retaining individual sheets of substrate in a curved configuration during coating or printing is disclosed. ...
05/06/2008
7354214Image forming apparatus having a chassis containing a curved part that supports a roller bearing
The image forming apparatus includes a chassis, a feed roller, and a press roller. The chassis includes first and side surfaces, a bottom surface that connects the first and second side surfaces, and a curved part formed unitarily with the bottom surface. The curved...
04/08/2008
7352382Thermal printer
A thermal printer includes an upstream conveying device and a downstream conveying device that are respectively arranged upstream and downstream of a recording device. The upstream conveying device conveys a recording sheet while a first half of a print region that ...
04/01/2008
7341338Inkjet printer
An inkjet printer includes a single transport roller (4), two first driven rollers (A: A1, A2), two first driven rollers (B: B1, B2), and a single first driven roller (C). The rollers (A1, A2, B1, B2, C)...
03/11/2008
7334890Recording apparatus
In second transport means (12), nipping pressure of each of outermost star wheels (6a), (6e) located at opposite ends in the primary scanning direction is set higher than that of each of star wheels (6b) to (6
02/26/2008
7312789Input device with extendible body
An input device having an extendible body or housing suitable for a hand-held operation. The input device includes a housing assembly including a palm-rest section and a base section opposite to the palm-rest section, a switch mechanism accommodated in the housing a...
12/25/2007
7264240Document feeder
A document feeder includes a housing, a control lever and a sheet pick-up module. The housing includes a feeding path defined by a first sidewall and a second sidewall. The control lever is mounted on the first sidewall, and includes a pivotal part, a collar and a h...
09/04/2007
7228092Image forming apparatus using a liquid developer including a carrier liquid with toner particles dispersed in a solvent
In liquid-developing image formation, a ghost image caused by the contact between a photosensitive member and an absorbing roller to collect a surplus liquid developer is prevented by preventing occurrence of a speed difference (relative speed) between a photosensit...
06/05/2007
7223033Pinch control in a printer
A pinch control apparatus in a printer for controlling a pinch force exerted on a medium which is being fed into a printing zone is provided. The pinch control apparatus includes a camshaft rotatably mounted across a width of the medium, at least one cam attached to...
05/29/2007
7172353Image forming apparatus
An image forming apparatus has a chassis; a print head unit pivotably supported by the chassis; a platen roller rotatably supported by the chassis to perform printing with the print head unit; a metal feed roller rotatably supported by the chassis to convey paper; a...
02/06/2007
7063472Sheet skew correcting apparatus and image forming apparatus
A sheet skew correcting apparatus, incorporated in a printer or the like to correct a phenomenon of obliquely feeding a sheet called skewing. The apparatus includes a transporting path in which the sheet is transported, a pair of registration rollers, a pair of timi...
06/20/2006
6978998Positioning structure of roller adapted for an auto document feed apparatus
A positioning structure of a roller adapted for auto document feed apparatus includes a flexible shaft and a flexible arm. The flexible arm has a first portion integrally formed with the flexible shaft, a second portion arranged into a clamping portion of auto docum...
12/27/2005
6837635Inkjet apparatus and method for controlling undulation on media
An inkjet apparatus includes a media drive means for moving a medium through a print zone of the apparatus, and also includes a carriage, in which a printhead is mounted, for traversing the pint zone in a second direction. The apparatus also includes restraining mea...
01/04/2005
6695503Print media feed system for an imaging apparatus
A print media feed system for advancing a sheet of print media having a leading edge and a trailing edge in a sheet feed direction through a print zone in an imaging apparatus includes a rotating support positioned downstream of an exit roller in relation...
02/24/2004
6676317Rotor balancing structure, sheet material processing device, and image forming device
The drum has a balancer disposed at both ends of a drum body around which a printing plate is wound, and with a rotating shaft rotatably supported by a supporting plate via an elastic support member of a shaft receiving member. When the rotating drum is r...
01/13/2004
6623196Apparatus for replacing photosensitive belt, method of communicating information concerning photosensitive belt, and printer employing the same
An apparatus for replacing a photosensitive belt of a printer, and a method of communicating belt-related information between a belt cartridge and the printer, are disclosed. The apparatus includes a belt cartridge adapted to receive a photosensitive belt...
09/23/2003
6435746Pinch roller for inkjet printer
An apparatus and method for guiding recording media through a printer comprises a roller unit which is coupled to the printer and which comprises a plurality of roller wheels....
08/20/2002
6364554Apparatus for feeding media in a printer
A print feed mechanism for feeding print media to a printing zone of a printer in which the feed mechanism is adjustable to vary the position of a pinch roller against a drive roller so as to vary the angle at which print media is fed to the printing zone...
04/02/2002
6336758Printer
A printer wherein a drive roller of a pair of sheet discharge rollers is made of rubber and a driven roller of the pair of sheet discharge rollers is made of synthetic resin; the leading end of a sheet is guided so as to be abutted against the drive rolle...
01/08/2002
6305860Squeezing apparatus of a liquid electrophotographic printer
A squeezing apparatus of a liquid electrophotographic printer includes a squeezing roller for squeezing out and removing the carrier from a developer which is applied on a photosensitive belt by its passive-rotational movement while being pressed into tig...
10/23/2001
6247861Controlling vacuum hold of media in a printer
A system for regulating the vacuum hold pressure in a printer based upon the stiffness of the print media that is directed through the printer. In one embodiment, the stiffness of a sheet of media is detected before or as the sheet reaches the carrier. Th...
06/19/2001
6206592Pinch roller for inkjet printer
An apparatus and method for guiding recording media through a printer comprises a roller unit which is coupled to the printer and which comprises a plurality of roller wheels....
03/27/2001
6190070Printer with media corrugation at media output
A printer for generating an image on a media sheet has a printer body with a media path extending from a media supply in a downstream direction to a media exit. An output tray and a media ejection mechanism are connected to the printer body adjacent the m...
02/20/2001
6152442Sheet separating and conveying apparatus having friction releasing device to separate convey and friction means
The present invention provides a sheet separating and conveying apparatus for separating stacked sheets and for conveying a separated sheet, comprises a sheet convey means for conveying the sheet, a friction means disposed in a confronting relation to the...
11/28/2000
6102597Feed mechanism for wide format flexible substrates
A feed mechanism for wide format flexible substrates includes a generally cylindrical traction roller having a first axis of rotation, a traction surface and having a length measured parallel to the first axis at least equal to the maximum width of substr...
08/15/2000
6019526Thermal printing apparatus
Printing apparatus is disclosed for printing on articles of non-uniform thickness. The printing apparatus includes a thermal transfer print head to print on the article and the article is pressed toward thermal printing elements of the thermal print head ...
02/01/2000
5997199Paper feeding module of a color picture printer
The present invention relates to a paper feeding module of a color picture printer for driving a picture back and forth through a printing module of the printer for printing. The printer comprises a housing. The printing module is installed inside the hou...
12/07/1999
5957599Sheet transport unit and recorder
A recorder comprises, a conveying roller for sending off sheets one by one from stacked sheets of paper; a sheet support biased toward the conveying roller; an feed roller positioned upstream a recording head and downstream the conveying roller; and a spr...
09/28/1999
5947615Recording apparatus
The present invention provides a recording apparatus in which a recording medium is conveyed by a driven rotary member and a convey rotary member urged against the driven rotary member by a biasing means supported by a rockable support member, so that an ...
09/07/1999
5938356Pinch roller for inkjet printer
An apparatus and method for guiding recording media through a printer comprises a pinch roller which is pivotally coupled to the printer. The pinch roller may have a plurality of roller wheels. The degrees of freedom of the pinch roller allows the pinch r...
08/17/1999
5913626Printer having noise noise reduction structure
A printer wherein a drive roller of a pair of sheet discharge rollers is made of rubber and a driven roller of the pair of sheet discharge rollers is made of synthetic resin; the leading end of a sheet is guided so as to be abutted against the drive rolle...
06/22/1999
5888000Printer with automated means for changing paper clamping pressure
In the present invention, the pressure between the paper feed roller and the trailing roller can be changed while preventing possibility of human misoperation and without requiring exclusive motors. The paper support pressure between a paper feed roller a...
03/30/1999
5681124Printer with displaceable trailing roller
This invention provides a printer in which the printer head can be removed easily and reduction of printer size can be realized. This is achieved because a displaceable trailing roller can be moved to a location where it does not interfere with the remova...
10/28/1997
5636928Thermal transfer card printing device and method
A thermal transfer printer for printing images and patterns on a card with thermally transferable color inks while moving the card back and forth in such a state that the card is held and urged against a thermal print head through an ink ribbon by capstan...
06/10/1997
5580042Sheet conveying apparatus
The present invention provides a sheet conveying apparatus comprising a convey roller for conveying a sheet; a plurality of pinch rollers arranged along the convey roller and adapted to urge the sheet against the convey roller; a pinch roller holder forme...
12/03/1996
5558451Shiftable guide member with rollers in a sheet feeding apparatus
The present invention provides a sheet feeding apparatus, comprising a conveying rotary member for conveying a sheet by rotating while contacting the sheet, an urging member for urging the sheet against the conveying rotary member, and a supporting means ...
09/24/1996
5482390Printer having discharge rollers
A printer which is compact, can accurately supply paper and has reduced noise characteristics. Additionally, the printer enables easy correction of paper jams and can be selectively operated in various modes according to the user's preference. The printer...
01/09/1996
5441354Carriage support system for computer driven printer
A carriage support system for a computer driven printer/plotter employs a slider rod and a slider bar mounted parallel to each other on a printer chassis wherein the bar supports the front side of a printer carriage and the rod supports the rear side of t...
08/15/1995
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