Abstract:
Line printer having a plurality of coaxially arranged rotatable printing rings each bearing a series of characters to selectively effect printing on a paper and a platen movable toward in contact with and away from the printing rings so as to effect printing on the paper interposed between the platen and the printing rings when the platen abuts against the printing rings, each of the printing rings being selectively arrested by a select lever actuated by the printing signal from a control system of the printer thereby positioning desired characters of the respective printing rings in the printing position at which the platen abuts against the printing rings so that a line of printing is produced on the paper simultaneously. The printer comprises a mechanism for additionally printing a mark such as an underline and the like adjacent to particular characters printed on the paper. The mechanism is moved to the printing position by a signal from the control system. The mechanism comprises a printing wire with portions supported by a pair of printing levers swingably arranged at opposite extremities of the coaxially arranged printing rings. The printing wire is supplied with ink from an ink supply each time it is moved out of the printing position.
Abstract:
A printer comprising a supporting structure and a print disc having a curved peripheral surface with characters formed thereon. The print disc is mounted on the supporting structure for rotation about a rotational axis. Paper is moved over the peripheral surface in a direction generally parallel to the rotational axis, and one or more hammers cooperate with the paper and the characters for effecting printing on the paper. A guide generally conforms the paper to at least a portion of the curved peripheral surface as the paper is moved over the peripheral surface. This permits an entire line of characters to be printed and provides the paper with some rigidity against bending and an ability to extend generally vertically to permit the user to visually observe what has been printed. To eliminate noise during standby, the print disc is rotated through only one revolution in response to each print command.
Abstract:
A logic operated typewriter including a print head that has low inertia individually moving character-bearing fonts in a driven print wheel. The character-bearing fonts are magnetically retained at the periphery of the wheel. Magnetic count means are provided which are associated with each of the fonts to enable font selection by counting from a predetermined start of counting location on the wheel to select a particular font for impacting same against the typewriter platen so as to make a printed character. A magnetic head is used to count the markers on the print wheel and a magnetic hammer is used to impact each particular font selected.
Abstract:
THREE BELT DRIVE ASSEMBLIES COOPERATE TO SELECTIVELY POSITION A CYLINDRICAL CHARACTER FONT CARRIER IN A SERIAL PRINTER ANGULARLY ABOUT ITS AXIS OF ROTATION, LINEARLY ALONG SAID AXIS, AND LINEARLY IN A DIRECTION PERPENDICULAR TO SAID AXIS. THESE MOVEMENTS MAY OCCUR CONCURRENTLY TO MOVE ANY DESIRED CHARACTER ON THE FONT CARRIER INTO PRINTING POSITION.
Abstract:
A remotely-controlled print module for use in printing labels or the like wherein a plurality of differential gears are aligned on a common drive shaft and oscillatably driven to a predetermined position controllable by selective indexing means, the gears meshing with typewheels carried on a shaft parallel to the drive shaft. The gears are independent of each other and are friction driven by means of spring elements for friction loading thereof, wherein during a cycle of operation, the gears are stopped at predetermined positions by means of indexing pawls which are selectively energized through electromagnetic solenoids, the stopped position of the typewheels being compatible for striking by print hammers. The differential gear line-up includes an additional gear and read means for sensing positions of the gears and the typewheels and relaying pulses for commutation effect to a remote computer which directs control of the module printing.