摘要:
A ribbon cassette of which the type of ink ribbon accommodated in the ribbon cassette may be identified by detection switches arranged on the carriage of a thermal transfer printer, without using a plurality of types of ribbon cassette case which are different in shape. A ribbon cassette in which a simple construction is used to prevent sticking to each other of the ink ribbon and the guide roller immediately after printing. A ribbon cassette by which a stain on the recording sheet due to contact between the sheet and the ink ribbon at the time of printing operation may be prevented and the stability of running of the ink ribbon is improved. A thermal transfer printer in which: the stability of running of the ink ribbon may be improved; both hot peeling printing and cold peeling printing are possible in an excellent condition; and the consumption of the ink ribbon may be reduced.
摘要:
A ribbon cassette of which the type of ink ribbon accommodated in the ribbon cassette may be identified by detection switches arranged on the carriage of a thermal transfer printer, without using a plurality of types of ribbon cassette case which are different in shape. A ribbon cassette in which a simple construction is used to prevent sticking to each other of the ink ribbon and the guide roller immediately after printing. A ribbon cassette by which a stain on the recording sheet due to contact between the sheet and the ink ribbon at the time of printing operation may be prevented and the stability of running of the ink ribbon is improved. A thermal transfer printer in which: the stability of running of the ink ribbon may be improved; both hot peeling printing and cold peeling printing are possible in an excellent condition; and the consumption of the, ink ribbon may be reduced.
摘要:
A ribbon cassette of which the type of ink ribbon accommodated in the ribbon cassette may be identified by diagonally-arranged detection switches arranged on the carriage of a thermal transfer printer, without using a plurality of types of ribbon cassette case which are different in shape.
摘要:
A thermal transfer printer which can simply and assuredly erase a symbol recorded in error with thermal transfer ink on record paper. The printer comprises, in addition to a printing transfer ribbon and a printing thermal head, an erasing ribbon carrying thereon a layer of a thermally adhesive resin material, and an erasing thermal head which is operated, during erasing operation, to generate heat to melt the thermally adhesive resin on said erasing ribbon sufficient to adhere to the thermally fusible ink of a symbol printed on record paper so that the ink may be removed from the paper as the erasing ribbon is moved away from the record paper. The printing and erasing thermal heads are mounted in a juxtaposed relationship on a movable carriage, and the erasing thermal head has a greater heat generating area than the printing thermal head.
摘要:
A printing method for a thermal printer having a heat-sensitive recording medium containing a coloring material interposed between a recording paper laid on a platen and a thermal head. For printing, the coloring material is transferred from the recording medium to the paper by the print energy of the thermal head. A low print energy level and a high print energy level are respectively set in advance and during the printing operation energy of the former level is applied to the recording medium while during the correcting operation energy of the former level is applied to the recording medium to bond the printed characters on the recording paper to the recording medium. In preparation for the correcting operation, the thermal head is preheated in its head-up state at which stage it is separated from the platen. Printing and correcting operations are executed on the basis of information on the head surface temperature detected by a temperature sensor.
摘要:
Disclosed is a thermal printer which comprises a thermal head mounted on a carriage and movable relative to a platen having recording paper wound partially therearound, and a carriage guide plate carrying the carriage, and pivoted so as to separate the thermal head from the platen. A cam mechanism is provided for pivoting the carriage guide plate, and a cam operation mechanism driven by the motor is provided for operating the cam mechanism.
摘要:
A light signal detection device includes a light receiving optical system configured to receive a reflection signal reflected from an object when irradiation light emitted from an irradiation unit hits the object and reflects from the object; and circuitry configured to binarize the received reflection signal using a first threshold value, based on a determination of whether the reflection signal is equal to or greater than the first threshold value; binarize the received reflection signal using a second threshold value set with a given value similar to a noise signal value, based on a determination of whether the reflection signal is equal to or greater than the second threshold value; and measure a time difference between a time of emitting the irradiation light from the irradiation unit and a time of receiving a reflection signal equal to or greater than the first threshold value or the second threshold value.
摘要:
An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.
摘要:
An object detecting apparatus includes: a light projection unit that is an array light source in which each of a plurality of light emission areas emits light, an optical scanning unit that performs scanning with the light, which is emitted from the light projection unit, in a first direction, and a light receiving unit that receives reflected light which is the light, with which the scanning is performed, being reflected by an object, and an object information acquiring unit that detects presence/absence of the object based on emission timing at which the light is emitted from the light projection unit and light receiving timing at which the light receiving unit receives the reflected light.
摘要:
An optical scanner includes a light source including a plurality of light emitting elements, a polygon mirror which deflects light from the light source for scanning a surface of a subject, an optical element arranged between the light source and the polygon mirror, having optical power in a sub scanning direction, a synchronous detector which detects the light deflected by the polygon mirror for synchronous detection and generates a signal for controlling a timing at which the scanning of the surface is started, and a fixing element which secures one end of the optical element. The light emitting elements of the light source are aligned with a certain tilt angle relative to the sub scanning direction. Light from one of the light emitting elements disposed closest to the fixing element in a main scanning direction is used for synchronous detection.