Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7434928 | Image 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 |
| 7334890 | Recording 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 |
| 7223033 | Pinch 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 |
| 7172353 | Image 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 |
| 6435679 | Ink jet validation printer An ink jet printer having a drive roller assembly for conducting forms into and out of a printing station that is located beneath the drive roller assembly. A pair of sensor units are mounted above the axis of the drive roller for detecting the alignment ... | 08/20/2002 |
| 6390700 | Absolute location low wear bearing for an imaging apparatus A bearing for an imaging apparatus includes a first bearing flank including a first bearing surface having a shape in cross-section defined by a first arc having a first radius extending from a first surface axis. The bearing further includes a second bea... | 05/21/2002 |
| 6332068 | Print recording apparatus having modular autoduplex mechanism A modular duplex media handling system is installable for use with a print recording system having a simplex media handling system. During first side printing a media sheet is fed along a first media path in the simplex system from feed rollers to meterin... | 12/18/2001 |
| 6305860 | Squeezing 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 |
| 6305859 | Pressure contact roller and printer using the same The invention provides a pressure contact roller for use in a recording paper feeding mechanism of a printer, the pressure contact roller is formed with crystalline resin powder projected from an outer circumferential surface of the roller body. By using ... | 10/23/2001 |
| 6283655 | Friction-feed plotter with laterally-movable drive roller, and related method for plotting on sheets of different widths In an apparatus and method for plotting on sheets of different widths, such as by cutting and/or printing, a tool support holding a plotting tool, such as a pen or knife blade, is spaced apart from a laterally-extending sheet-supporting surface and movabl... | 09/04/2001 |
| 5997199 | Paper 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 |
| 5302975 | Transport roller having compressible hubs A nip-roller pair for transporting a sheet or web of material has one regular roller and a special roller to prevent scarring of the transported material. The special roller has one or more hubs of soft, compressible material that engage the material and ... | 04/12/1994 |
| 5244295 | Printing device having a sound insulating wall A dot-matrix impact printer includes a print head in a housing for printing a recording sheet fed around a platen. The recording sheet is pressed against the platen by a sheet presser roller. A roller cover or a flap is disclosed as a sound insulating wal... | 09/14/1993 |
| 5218380 | Platen drag mechanism for thermal printers A continuous tone themal printing apparatus of the type having a printing station and a receiver paper drive station. The drive station repeatedly advances receiver paper back and forth through the printing station in conjunction with the advance of succe... | 06/08/1993 |
| 5211492 | Serial impact printer A serial impact printer is provided for printing on a printing medium. The serial impact printer is provided with a carriage, a printing head supported on the carriage and a platen having an outer surface adjacent the printing head to define a printing re... | 05/18/1993 |
| 5138341 | Plotter with drive rollers having variable radial contact surfaces A plotter wherein, while a sheet is being moved on a recording surface, figures, characters etc. are automatically depicted on the surface of the sheet, or the contours of figures, characters etc. are automatically cut in the surface of the sheet. In the ... | 08/11/1992 |
| 5135322 | Printer having one end of paper bail separated from a platen and the other end thereof contacting the platen A printer comprises a rotatable platen for supporting a sheet and a printhead which is capable of moving along the platen to print data on the sheet. A paper bail shaft supports paper bail rollers rotatably so as to be faced to the platen. A printhead ret... | 08/04/1992 |
| 5129749 | Line printer with pinch roller release The line printer is provided with a pinch roller for feeding a spring medium sheet by capstan drive. The pinch roller is pressed by an integrated pressing mechanism comprised of a spring holder, a pressing spring member disposed in the holder and a bearin... | 07/14/1992 |
| 4883375 | Printing device A guide shaft guides a print head, which moves along a print line of a platen to perform a printing operation. A rotating member and an eccentric cam member, having a toothed sector portion on its periphery, are mounted on the guide shaft. The guide shaft... | 11/28/1989 |
| 4787764 | Sheet feeder in printers, having an improved operability in sheet setting A printer, having a cylindrical platen rotatable for delivery of a printing sheet, which comprises a roller support shaft disposed in parallel with the platen and rotatably supported by a cover which is capable of being open and closed, and at least one f... | 11/29/1988 |
| 4761087 | Printer with automatic printed paper advancement to tear-off position and subsequent retraction to new first print line A printer is provided with a controllable bail located between a print station and a downstream paper tear-off station. Upon occurrence of a first control signal, a printed portion of the paper is advanced to a desired tear-off position adjacent the tear-... | 08/02/1988 |
| 4691911 | Paper feeding apparatus for printers A paper feeding apparatus for a printer. There are at least two mounting members, each of which is adapted to contain sheets of paper. A paper feeding assembly is associated with each of the mounting members and contacts the paper in the mounting member f... | 09/08/1987 |
| 4683480 | X-Y plotter drive roller arrangement An X-Y plotter disclosed is of the type which moves a recording paper with no perforation by drive rollers and pinch rollers. A plurality of sharp projections are arranged on the outer surface of each of the drive rollers such as to enable an exact feedin... | 07/28/1987 |
| 4666322 | Record carrier feed device Disclosed is a record carrier feed device in which a guide bar is disposed in a position where the leading edge of a record carrier wound around a platen is on the point of separating from the cylindrical surface of the platen in a direction tangential th... | 05/19/1987 |
| 4561792 | Paper transportation device for printers which use reel paper, with one paper pressure roller The invention relates to a paper transportation device for printers, which use reel paper, having a motor-driven platen and one paper pressure roller which contacts the platen approximately at the center thereof so that it can be swung away in an elastic ... | 12/31/1985 |
| 4527174 | Sheet pressing mechanism in a pen type recording device A sheet pressing mechanism in a pen type recording device including a rotatable platen and a pen adapted to move in the axial direction of the platen while contacting the platen, in which pressure rollers are brought into contact with outer peripheral sur... | 07/02/1985 |
| 4483635 | Paper guide for printers Above the platen and throughout the entire width of the paper guide, the back of a guide member which is inclined in the direction of the paper eject, is firmly arranged. On bolts in the end faces pairs of levers are swivel mounted which, via tooth segmen... | 11/20/1984 |
| 4453847 | Record carrier feed arrangement for a printer A feed arrangement for transporting a record carrier around and in intimate contact with a printing platen in a printer. The feed arrangement includes a rotatable guiding member in the form of a paddle wheel having a number of resilient blades mounted in ... | 06/12/1984 |
| 4302116 | Printing machine with throat for front loading of sheets A printing machine comprising a flat, substantially horizontal, guide portion on which the document to be printed is initially placed, a curved guide portion connected with the horizontal guide portion across which the document may be pushed manually and ... | 11/24/1981 |
