摘要:
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.
摘要:
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.
摘要:
A printing apparatus comprises a type wheel carrying a plurality of type elements and a platen for mounting and advancing a printing paper. A hammer can strike any one of the type elements against the printing paper and an ink ribbon is positionable between the type elements and the paper to imprint a character on the paper when any one of the type elements is struck. The ink ribbon is advanced by a driving mechanism. First, second, and third selecting systems respectively select one of a plurality of degrees of advancement of the printing paper, one of a plurality of time intervals of actuation of the hammer, and one of a plurality of amounts of advancement of the ink ribbon. First, second, and third counters each count pulses from respectively associated first, second, and third pulse generators to, respectively, first, second, and third set values determined by the selected degree of paper advancement, time interval of hammer actuation, and amount of ribbon advancement. First, second, and third control circuits respectively start paper advance, hammer actuation and ribbon advance upon selection by the corresponding selecting systems and stop such paper advance, hammer actuation and ribbon advance when the corresponding counter counts to its set value. The three control circuits are operated in a coordinated manner by a microprocessor.
摘要:
A display device is capable of showing an entire sentence stored in a memory with a limited number of key operations and without interruption of the spelling of each word. The display device is provided with a memory for storing a sentence composed of plural word groups, readout means for reading the sentence from the memory, a display unit for displaying the sentence read from the memory, and an identifying unit for identifying the spaces in the sentence, wherein the sentence after a space identified by the identifying unit is supplied to the display unit.
摘要:
A frequency-voltage converting system has a first sampler for sampling the input signal at a predetermined time interval a second sampler for sampling the input signal after elapse of a predetermined time period from said predetermined sampling time, and comparator for comparing the sampled values obtained respectively from said first and second samplers and providing the difference of said sampled values as a value proportional to the frequency of said input signal.
摘要:
A printing apparatus includes a print wheel having a vertical lien character, a minus symbol character, and an underline symbol character. A first control moves a carriage on which the print wheel is mounted at one of two pitches and a second control advances a printing paper for receiving printing at one of two pitches in a direction generally perpendicular to the direction of movement of the carriage. Respective keys select the vertical line character and underline character for printing and the printing and paper-advancing pitches. One key signals repeat actuation of either the key selecting the vertical line character or the underline character and a memory stores actuation of the key for selecting the vertical line character. Printing of a vertical line character and advancement of paper is achieved by a control in response to actuation of the repeat signaling key, if the memory stores actuation of the vertical character key. Another control clears the memory in response to operation of any key other than the repeat signaling key.
摘要:
Impact type printer of a construction having a carriage including a character type wheel, a light source disposed outside the carriage, device for introducing light beam from the light source into the carriage such as a flexible photoconductor, a mirror, etc., and a detector to detect rotation of the character type wheel by application of the light beam introduced by the light beam introducing device to an encoder.
摘要:
A printer in which selection of a character wheel is effected under servo-control of a motor has a carriage movable parallel to a platen, a character wheel rotatable by being supported on the carriage by means of a bearing, and a motor installed outside the carriage for rotating the character wheel.
摘要:
A frequency-voltage converting system has a first sampler for sampling the input signal at a predetermined time interval, a second sampler for sampling the input signal after elapse of a predetermined time period from said predetermined sampling time, and comparator for comparing the sampled values obtained respectively from said first and second samplers and providing the difference of said sampled values as a value proportional to the frequency of said input signal.
摘要:
A printer having a mechanism for moving a carriage along a platen and a mechanism for rotating a type wheel to select types is disclosed. The printer has switch for selectively transmitting the driving force from a driving source to either carriage or type wheel.