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Class 400/627 - By pneumatic means


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein the typewriter is provided with means
No. of patents: 20
Last issue date: 05/29/2007


NumberTitleIssue Date
7222846Sheet take-out apparatus and method of taking out sheets
A sheet take-out apparatus is disclosed that includes a sheet-feeding member on which sheets are placed. The apparatus includes an air spout unit to spout out air towards a right or left side of a front portion of the sheets with respect to a take-out direction of t...
05/29/2007
6964468Printer
A printer comprises a transportation belt, a printer head, and a pneumatic paper sucker. The transportation belt is driven by a driving roller that drives a driven roller. The printer head includes a plurality of head units each having ink-jet surfaces. In the print...
11/15/2005
6945525Sheet feeding apparatus having an adaptive air fluffer
A sheet feeding apparatus for feeding a stack of sheets in a direction of movement to a process station, including: a sheet tray for holding the stack of sheets; an air plenum, positioned above the stack of sheets, for picking up a sheet from the stack of sheets whe...
09/20/2005
6793213Feeding apparatus for material sheets
In a feeding apparatus for material sheets, package blanks (B) are stored stacked in layers in a hopper (2) that opens downward, for example. A plurality of stopper guides (20) are arranged at intervals in the longitudinal direction of the package blan...
09/21/2004
6682191Vacuum drums for printing, and duplex printers
A vacuum drum assembly for a printing machine has a drum with an array of passageways distributed along its length and around its periphery. The passageways permit air to flow from outside the drum to inside the drum in response to reduced air pressure in...
01/27/2004
6572292Apparatus and method for transporting print media through a printzone of a printing device
An apparatus for transporting print medium through a printzone of a printing device. The apparatus including a print media movement mechanism configured to advance a first portion of a print medium through the printzone and a reciprocally translating vacu...
06/03/2003
6565171Method for reducing vertical banding
Variances are introduced into at least one component of a large format inkjet printer to substantially reduce the formation of vertical bands during a printing process. In one respect, the relationship between the carriage speed and the vibrations caused ...
05/20/2003
6460991Vacuum drums for printing, and duplex printers
A vacuum drum assembly for a printing machine has a drum with an array of passageways distributed along its length and around its periphery to permit airflow from outside the drum to inside the drum in response to reduced air pressure inside the drum. An ...
10/08/2002
6443442Extraction equipment for paper money
A purpose of this invention is to provide paper money extraction equipment for issuing only one sheet of paper money by surely picking up the top most sheet from a stack in which a plurality of paper money sheets are arranged. The extraction equipment pro...
09/03/2002
6345921Sheet feeding apparatus employing air streams as handling media
Sheets of paper, photos, transparencies and the like can be fed to a work station (scanner, printer, photocopies, etc.) from a staircased stack of said sheets by use of an air knife and wind tunnel system....
02/12/2002
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
6206591Sheet carrying device
According to the sheet carrying device of the present invention, the controlling unit changes the driving power of the fan driving source, depending on characteristics of the sheet. Therefore, appropriate sucking power can be caused to act, depending on t...
03/27/2001
6048120Vacuum imaging drum with angled vacuum holes
An image processing apparatus (10) comprises a vacuum imaging drum (300) for holding thermal print media (32) and dye donor material (36), in registration with the thermal print media (32), on a surface of the vacuum imaging drum (300). A printhead (500) ...
04/11/2000
5511891Tape printing machine with IR sensing
A tape is controlled in a printing machine by advancing a length of tape through a light pathway. Transmittance of the light through the tape is measured and values are stored associated with transmittances through the tape. The tape is advanced to a star...
04/30/1996
5326184Apparatus and method for picking paper from a stack
A rotatable pick engager for use with a printer for precisely timing the engagement of a paper stack with a pick roller during the picking of a sheet from the stack, greatly reducing top of sheet variability, skewing and multiple picks....
07/05/1994
4926339Computer automated microfilm jacket feed and printer device
A computer coordinated microfilm jacket feed and printer machine has a microfilm jacket aligning and feed structure and a microfilm jacket-stacking and aligning platform and elevator thereof. The jacket-feed mechanism positions a forwardly-stacked microfi...
05/15/1990
4792249Vacuum paper transport system for printer
A controlled paper transport arrangement utilizes a flexible belt which attracts the paper to its surface by the application of a reduced air pressure on the other side. In a preferred embodiment, the belt operates in a continuous loop and in combination ...
12/20/1988
4655131Apparatus for conveying and printing postal items
In an apparatus for stamping flat objects of different sizes and thicknesses, particularly postal items, said objects are arranged vertically on a feed table. The objects are individually removed from the latter and successively moved past a stamp and are...
04/07/1987
4293863Ink jet printer with laterally movable print head
An ink jet printer deposits ink drops from a plurality of jet drop streams along a plurality of parallel adjacent print lines on a sheet of paper. The printer includes a sheet supporting drum, means for rotating the drum, and a print head which is slidabl...
10/06/1981
4216953Paper feeding device
A paper supply device for a machine such as an electric typewriter or word processor, the device comprising a self-supporting housing for location behind said machine and separate therefrom. The device includes a pair of driven rotatable rollers for frict...
08/12/1980
 
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