Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7213987 | Synchronization method and apparatus in a value metering system having a digital print head A manually activated, value-metering system having a method and an apparatus for achieving synchronization, wherein the value metering system uses a digital print head to print a plurality of printed lines, one printed line at a time, on a substrate, which is advanc... | 05/08/2007 |
| 6854726 | Imaging apparatus including a print media feed system configured for reducing printing defects An imaging apparatus includes a motor including a motor shaft to which a pinion gear is attached, and a feed roller including a shaft. The feed roller is positioned upstream from the print zone in relation to the sheet feed direction. A primary gear train includes a... | 02/15/2005 |
| 5902058 | Sheet conveying apparatus and image forming apparatus The present invention provides a sheet conveying apparatus for conveying a sheet comprising a convey member for applying a conveying force to a sheet, a drive source for driving the convey member, and a drive transmitting means for transmitting a drive fo... | 05/11/1999 |
| 5529407 | Image recording apparatus An image recording apparatus has a first recording-sheet storing section for storing a first recording sheet, a second recording-sheet storing section for storing a second recording sheet, a serial recording head for effecting image recording on the first... | 06/25/1996 |
| 5513919 | Method and apparatus for printing on sheet material A thermal printer carries out printing operations to produce images in multiple colors in response to a printing program. In order to eliminate distortions and to insure registration of colors in the printed image, a printer controller eliminates backlash... | 05/07/1996 |
| 5456543 | Printer motor drive with backlash control system A backlash control system for a printer medium drive system having a motor-driven gear train for driving medium-engaging rollers. Pinion gears mounted on the motor drive shaft mesh with a main gear and a tension gear, mounted in turn on a main drive and a... | 10/10/1995 |
| 5449241 | Printing apparatus A printing apparatus including a paper guide, provided on a frame for guiding recording paper; a platen pivotally supported by the frame; a paper feeding roller rotatably provided in the frame; and a printing driving section reciprocally moving with respe... | 09/12/1995 |
| 5050858 | Sheet feed control method There is provided a sheet feed control method for feeding sheets at a predetermined pitch to the printing section of a printing machine that comprises a sheet feeding roller and a pair of small rollers provided one upstream and the other down stream and p... | 09/24/1991 |
| 4971466 | Printing apparatus having a rotatable member rotatable in incremental steps smaller than the pitch of a detent gear and including means for accurately retaining the rotatable member at a predetermined position when the detent mechanism is inoperable There is described a printing apparatus in which line feed is achieved by rotating a platen with a paper advancing motor and the printing is conducted while the platen is stopped by the paper advancing motor. The printer is further provided with a detent ... | 11/20/1990 |
| 4905597 | Method and apparatus for pin feeding and printing continuous forms A strip provided adjacent the edges thereof with perforations is driven forwards during a printing operation by the cooperating printing and counter-pressure cylinders of an offset mechanism, and by two pairs of pin tractors, pins of which enter the somew... | 03/06/1990 |
| 4881834 | Printing apparatus capable of backlash regulation In a carriage driving system of a printing apparatus, due to play between gears and elongation of a wire or belt, a positional error is produced in the stop position of a carriage when the carriage is moved in the backspacing direction. Then, in the conve... | 11/21/1989 |
| 4815878 | Printing apparatus and a paper controlling method for a printer wherein paper slack is cancelled A printing apparatus and a paper controlling method for a printer in which, upon activating a power source or upon changing over to the on-line mode or upon switching to a high paper feed speed, a paper feed motor is rotated first reversely to draw back p... | 03/28/1989 |
| 4752786 | Single motor multi-function drive control recorder A thermal printer using a single pulse motor is disclosed. This thermal printer comprises: a single pulse motor; a moving member which is moved in accordance with the drive of the pulse motor; a head raising and lowering mechanism and a sheet feed mechani... | 06/21/1988 |
| 4663982 | Governor device for printer In a governor device for a printer including a driving wheel rotating for a predetermined amount by means of urging force by a urging spring to feed paper and engaging with a stopper to stop at this position and a governor gear train consisting of a speed... | 05/12/1987 |
| 4553869 | Buckling one way clutch A mechanical torque transmitting apparatus such as a one-way clutch which includes two distinct sets of flexural arms (primary and auxiliary) and a cylindrical engagement surface. The primary flexural arm is adapted to be in edgewise continuous engagement... | 11/19/1985 |
| 4365904 | Linespacing apparatus A linespacing apparatus includes a slip clutch assembly which is driven by an electric motor. The slip clutch assembly includes a face cam which drives a linkage which, in turn, indexes a platen in order to linespace the platen. The face cam includes an a... | 12/28/1982 |
| 4349287 | Intermittent paper feed mechanism An intermittent paper feed mechanism comprises a driving wheel rotationally driven in an intermittent manner, a driven wheel disposed opposite to and rotated by the driving wheel, a stopper means for restricting the angle of rotation of the driving wheel ... | 09/14/1982 |
| 4347006 | Paper insert and line feed mechanism A powered gear driven paper insert and line feed mechanism capable of rotating a platen through one half line spacing increments and which is both power operated and disconnectable for manual operation is disclosed. The platen of the typewriter or printer... | 08/31/1982 |
| 4217057 | Printer paper feed assembly including means for facilitating manual paper advance A paper feed assembly for a printer which permits manual paper advance includes a pair of rotatable rollers for advancing a print paper therebetween, a paper feed gear mounted on one roller and a drive gear alternately operatively engaged with the paper f... | 08/12/1980 |
| 4212554 | Paper-feeding apparatus for a printer A printer includes a paper transport cylinder which is intermittently driven by a motor to automatically advance the paper by one line each time a line has been printed. In order to advance the paper before printing begins a manually actuable key is provi... | 07/15/1980 |
