Abstract: An apparatus for the input and processing of characters and/or graphic patterns for use with electronic data processing systems includes an input unit and a control unit which transmits the input characters and/or graphic patterns to an output unit, a graphics tablet having an input layer, a plurality of sensor elements disposed on the input layer for converting pressure signals into electrical signals which are adapted for transmission to the control unit, a keyboard which is movable relative to the input layer from a keyboard operating position adjacent to the input layer to expose the input layer to enable direct entry thereto, and an operating mode detector for detecting whether the keyboard is in the operating position.

Abstract: A method and apparatus to avoid disturbing an inexperienced operator of a text station, such as a typewriter or other word processing device which is equipped with a one-line display device (6), when the text approaches the end of the display device and a word must be hyphenated. In a typical conventional text station having a one-line display device, the current typing position is marked on the display device by a cursor (9) which automatically advances toward the right margin (10) until a line feed is initiated, whereupon the cursor jumps to the left margin (11) on the display device and the previously displayed text is erased. If a word is divided, the first part of the divided word is then no longer visible at a conventional text station after the automatic line feed, and for inexperienced operators this disturbs the typing rhythm.

Abstract: A printer has an optical printing head for a line-by-line image forming of design and text information. The printing head has spaced light emitting elements arranged in a row and each having a light emitting surface. The printing head further has an optical device for reproducing the light, emitted by the light emitting elements, in one line on a light sensitive surface. The light emitting surface of each light emitting element has, parallel to the feed direction of the light sensitive surface, a dimension several times the length of image dots to be reproduced on the light sensitive surface. The optical device has an image reproducing first optical lens and a second optical lens situated between the first optical lens and the light sensitive surface for reducing the image of the light emitting surface of each light emitting element to a required light dot size on the light sensitive surface.

Abstract: An optical printing head for a printer for the line-by-line recording of graphics and text in successive parallel lines on a photosensitive record carrier disposed at a printing location, the head including: a plurality of actuatable optical components disposed adjacent one another in the direction of the recording lines and each constituting a source of dot-like light elements; objective lenses disposed between, and having optical axes extending between, the optical components and the printing location for projecting the light elements provided by each optical component onto the printing location along a portion of each printing line; and members operatively associated with the lenses for adjustably positioning the lenses relative to the optical components in at least one direction in a plane transverse to the optical axes.

Abstract: An optical printing device for generating a linear light pattern which is applied to a moving photosensitive recording medium, which device is composed of a plurality of subassemblies each located for providing a respective segment of the linear light pattern, each subassembly including: a unit composed of a row of generally parallel optical fibers arranged to conduct light from a light source to their output ends, and a photocoupler composed of a thin transparent plate extending transversely of the direction of light propagation by the optical fibers and having a light entrance surface coupled to the output ends of the optical fibers to receive light therefrom, a light exit surface to which light is conducted from the light entrance surface, and lateral surfaces spaced apart in the direction of the linear pattern and extending between the light entrance and light exit surfaces.

Abstract: An optical printing head for recording graphic and text information line by line, including a plurality of juxtaposed, actuatable optical components, including picture dot elements, from which light is transmitted in dots by means of objective lenses along the length of a line to be recorded on a photosensitive record carrier, and cross-section converters for conducting light from a light source to the light switching components.

Abstract: In the combination of an office machine for writing data and a source of a set of printing types including a carrier carrying such printing type set and a cassette in which the carrier is housed and which is insertable in the machine and exchangeable for other cassettes housing carriers carrying respectively different type sets, the office machine being provided with a receiving unit for receiving at least a portion of such cassette and holding such portion in an inserted position in the machine, there are provided control elements carried by the portion of the cassette and receiving members located in the region of the receiving unit to cooperate with the control elements of a cassette portion in the inserted position for initiating at least one of the operations of setting the machine to the particular printing type carried by the carrier and identified by the control elements, and supplying operating power to the machine.