Abstract: The disclosure relates to a printing device which includes so-called hot zones wherein a punctuation or hyphenation is automatically performed in accordance with a predetermined rule thereby letting users be free from the inconvenience of line end arrangements and also enabling users to pay attention to the text printed on the sheet when attention is needed for a particular format, since the printing is ordinarily conducted at least before the hot zone.

Abstract: A printer having a controller which moves a carriage according to the operation of a switch, and stores the location of the carriage at the moment when a margin setting switch has been depressed as margin location data. In case of a connection to an external data source, the setting of a margin location can be done at any time except when the printer is in a printing mode.

Abstract: A keyboard for typewriters or similar machines has a key support, switching contacts and key push rods, each of which is acted upon by a spring. The design of the few individual parts assures their simple manufacture (extruded parts and a stamped part) as well as an assembly just as simple and therefore automated, and, if desired, even without screws or aids of that type. Activation of the individual keys takes place with satisfactory tactile feedback and without undesireable vibrations.

Abstract: A serial printer including a print head, a carriage supporting the print head and moved by a drive motor along a line of printing, a pulse generating device for generating pulse signals corresponding to incremental distances of movement of the carriage, a time-data memory for storing time data representative of a time interval between a point of generation of each of the pulse signals, and a point at which the print head effects a printing operation, and a time-interval measuring device operable to measure the time interval according to the time data stored in the time-data memory. The time-interval measuring device generates a printing command to activate the print head upon termination of measurement of the time interval.

Abstract: An ink ribbon cassette is removably mounted on a printer and coacts with a reciprocable printing head to effect a printing operation. The cassette has a case containing an ink ribbon, and a pair of arms extending in opposed relation from opposite ends of the case and having slits through which the ink ribbon extends to form an exposed ribbon portion in the region between the arms. A ribbon guide is slideable along a guide shaft mounted on the case and is releasably carried on the printing head to reciprocate together with the printing head during the printing operation for guiding the ink ribbon. The ribbon guide has sets of retaining claws which slidably engage lengthwise with the upper and lower marginal edge portions of the ink ribbon for restricting vertical displacement of the ink ribbon relative to the case while allowing lengthwise sliding movement of the ink ribbon.

Abstract: A printing device wherein a cut-form printing sheet and a serial-form printing sheet is selectively in use is disclosed.

Abstract: A two by one twill fabric optimized for use in an impression type fabric is disclosed. This 2.times.1 twill weave has improved ink retention characteristics without a corresponding loss in impression quality. The fabric may be used for any conventional impression fabric application, including printer cartridges.

Abstract: In a method for the operation of a typewriter, printer or the like with a stepping motor for the paper feed and a basic step inputting device, to accomplish feeding of the paper by a fraction of a line spacing, the feeding position set at the time of cutting off the machine is preserved by (1) storing the energization pattern last applied or information descriptive thereof in a value-preserving RAM at a first address, (2) storing a bit pattern contained in the control program in identical form at a second address of the value-preserving RAM, and (3) comparing the bit pattern of the control program which was stored in the second address of the RAM, when restarting the machine, with the bit pattern in the control program. The control program is stored preferably in a ROM of the central control unit, to verify as above the validity of the energization pattern stored in the RAM under the first address.

Abstract: An endless belt used in a paper feeding apparatus for feeding paper to a printer in a computer or the like, the paper having feed holes formed at equal intervals in both side portions thereof. A large number of feed pins to be inserted into the above feed holes are formed on the outer peripheral surface of the endless belt. The feed pins are arranged so that there is repeated a pattern of interaxial spacings of P+a/2, P+a/2, P-a/2 and P-a/2, in which P is the distance between the centers of feed holes formed in the paper and a is a mean value of differences between feed pin outside diameters of the portions in abutment with edge portions of the feed holes and the feed hole diameter. Alternatively, the feed pins may be arranged at interaxial spacing between adjacent feed pins of P+a and P-a alternately.

Abstract: A ribbon cassette for writing and/or printing machines, the ribbon cassette including a casing with an upper part, a lower part as well as two ribbon-guide arms extending substantially parallel to one another away from the casing, an ink ribbon, a feed spool, a take-up spool as well as a drive member controllable by the machine for the onward transport of the ink ribbon, in which the ribbon has a ribbon section running freely between the two ribbon-guide arms outside the casing, and in which the ribbon-guide arms are borne on the casing in such a way that the ink ribbon, for the selection of one of several writing tracks, is movable against the force of restoring springs perpendicular to the band longitudinal axis in the ribbon plane of the ribbon section. The ribbon-guide arms are tied over film hinges in one piece to the casing.

Abstract: The invention relates to borderline formation on a multi-color ink ribbon for use on a typewriter or impact type printer.The ink-impervious borderline is formed by melting the fiber in the corresponding linear zone of the substrate fabric by irradiation with thermal radiation, specifically, an oblong laser beam, without physical contact.

Abstract: A retractable pin sprocket drive for feeding paper employs free floating, radially moving, cam actuated sprocket pins in axially spaced sprocket hubs forming sprocket wheels. The pins are slidably fitted in equally angularly spaced radial slots in each sprocket hub. The sprocket wheels are each journalled in a sprocket wheel housing and the sprocket pins are moved radially only by a stationary cam track in each sprocket housing as the sprocket wheels rotate. Insertion of paper having perforated edges is facilitated by means providing for the precise axial spacing of the sprocket wheels and angular positioning of the sprocket wheels and pins in relation to the perforations or holes along the edges of the paper, together with transparent sprocket wheel housings and openings therethrough permitting viewing of the sprocket pins and the holes in the paper as they come together, to permit precise sprocket pin insertion into the holes in the paper.

Abstract: An electronic apparatus includes an output unit for outputting information, a designation unit for dividing information to be outputted from the output unit on one line into a plurality of information sections an designating the width of each divided information section, and an output space set unit for allocating well-proportioned and equal spaces between the widths of divided information sections designated by the designation unit.

Abstract: A cartridge for a multistrike typing ribbon for printing machines engages a single drive shaft for unidirectional advance movement of the multristrike ribbon and comprises a container having a bottom and two arms which project from a rear wall and which each have an aperture for the ribbon to pass therethrough. An epicyclic transmission arrangement is disposed on the bottom and comprises a series of toothed gears which are coplanar with each other and parallel to the bottom. The drive shaft is engaged with a feed sleeve of the cartridge and is coaxial with the feed roller for the ribbon. The feed sleeve is fixed with respect to the sun gear of the arrangement, the sun gear being engaged with the planet gear which in turn is rotatable on an eccentric pin of a plate. The plate is fixed with respect to a second sleeve which is rotatable about the sleeve and on which the feed roller is fixed.

Abstract: There is disclosd a word processor capable of spelling verifying and correcting function with a limited display space. If a word is misspelled in an entered sentence, plural candidate correct spellings are displayed together with the entered sentence and in a suitable position relative to the sentence, thus facilitating the correction of spelling by the user.

Abstract: A printer includes a printer body and an automatic sheet feeder. The printer body has a case in which a printing mechanism and a continuous paper feeding mechanism are arranged. An upper wall of the case has a cut sheet supply port and a paper discharge port formed therein, both of which are located close to the printing mechanism. The sheet feeder is mounted on the case such that it can be pivoted between an actuating position, where it covers the supply and discharge ports, and a non-actuating position, where it does not interfere with the discharging of the continuous paper from the discharging port. At the actuating position, the sheet feeder supplies a cut sheet through the supply port to the printing mechanism.

Abstract: A ribbon is driven past the printing station of a printer only when the print head is moved in the right-to-left direction across the printer. An endless timing belt causes rotation of a gear pulley that is in mesh with an idler gear. The idler gear is supported on a pair of projecting fingers of a plate that is swingable on the center of the gear pulley. The idler gear is responsive to the direction of rotation of the gear pulley through a drag effect of the projecting fingers with the bottom surface of the idler gear.

Abstract: A printing apparatus system includes a plurality of type units each having a plurality of type elements and each being different from the others. Each type unit may be mounted in the apparatus. A detector detects which of the type units is so mounted and produces a detection signal representative thereof. The printing pressure with which each type element is imprinted on a print medium is determined in accordance with the particular type wheel mounted in the apparatus as indicated by the detection signal. Additionally, the amount of advance of an ink ribbon for imprinting a type element on a type unit is determined in accordance with the particular type unit mounted in the apparatus, again as indicated by the detection signal.

Abstract: A cooling fan control device for regulating the speed of a fan cooling a printing device. The control includes apparatus for determining whether a printing head and a paper feeder are to be driven, and when at least one of the printing head or paper feeder is to be driven, the cooling fan is driven at a high speed, while when neither the printing head nor the paper feeder is to be driven, the cooling fan is driven at a low speed. In a further aspect, the printing device sequentially adds the number of dots printed to a value previously stored in a memory and a subtracting device subtracts a predetermined value from the dot number newly stored in the memory every predetermined time.

Abstract: The face pressure distribution shape of the graze portion of the thermal head is made to be consistent with the temperature distribution shape of the graze portion of the thermal head. The temperature distribution shape of the graze portion of the thermal head is made to be consistent with the face pressure distribution shape of the graze portion of the thermal head. The graze portion of the thermal head is formed projectingly in two steps, and the heating resistor element of the thermal head is provided on the top portion of the graze portion of the thermal head. A thermal transfer printer having no ink void and no ink transfer unevenness can be obtained.