摘要:
An ink ribbon cassette has a case housing an ink ribbon inside. Holes for receiving positioning members are formed at the two ends of a front portion of the case, and an engaging member is formed at the center of a rear portion of the case. One of the positioning members also serves as an ink ribbon end detector. A printing apparatus for printing using such an ink ribbon cassette has a carriage, projections and a spring. Thus, the slackening of the ink ribbon will not occur in the printing mode.
摘要:
A recording head having plural recording elements, a printed circuit board connected to the plural recording elements for power supply thereto, a serial-in-parallel-out driver circuit provided on the printed circuit board for converting the signals to the recording elements into parallel signals, and electrodes provided on the printed circuit board for connection with an external connector.
摘要:
A printing apparatus of the type in which character wheels of respective columns are independently rotatably juxtaposed and the character wheel of each column is individually rotation-controlled to select a desired one of characters on the outer periphery of the character wheel at a print position, characterized in that the apparatus is compact and light in weight.
摘要:
A thermal transfer printer comprising means for identifying space data present between character data in a print data string. When a space portion is detected by the space identifier, the thermal head is moved apart from the platen of the printer and the ink ribbon feed is stopped thereby preventing the waste of the ink ribbon by the space portion in a line.
摘要:
A platen support structure of a thermal transfer printer, for example, has a platen holder holding a platen, a frame supporting two ends of the platen holder, and an indexing mechanism for pivotally supporting the platen holder. The platen holder is curved in the inoperative mode of the printer and is flexed linearly in the operative mode. Clear printing can be performed without irregular line feed.
摘要:
A printing head has two or more columns each consisting of a vertical array of dot printing elements. A pulse motor moves the printing head relative to paper, and another pulse motor line feeds the paper upon printing each line. The columns of the head print dots in a superposed manner at high speed under the control of a CPU including memories for storing 7-dot patterns and a control program, respectively.
摘要:
A thermal transfer printer includes a thermal head having plural heat generating elements, a thermal head driver connected to a character generator for controlling the thermal head by supplying drive currents to the heat generating elements of the thermal head in response to print information, and control circuit for controlling the drive currents from the thermal head driver in response to the ambient temperature. Therefore, the thermal transfer printer is capable of constantly providing an optimum transfer density regardless of the ambient temperature, thus ensuring a satisfactory print quality.
摘要:
A printer has a stationary electromagnet device, a hammer having a permanent magnet therein, and a resilient member coupled to the hammer. The permanent magnet may be moved upon electrical energization of the electromagnet device to cause the hammer to impact against a character by mechanical energy accumulated in the resilient member.
摘要:
A thermal recording apparatus for recording an image on a recording medium has a thermal head having a first row of heat generating elements and a second row of heat generating elements which is arranged substantially parallel to the first row of heat generating elements of a predetermined interval. A scanner relatively scans the thermal head and the recording medium to perform recording and the recording medium is preheated by the row of heat generating elements which reaches an image recording position first.
摘要:
A recording apparatus such as a thermal printer is compact in size and simple in construction, and has a recording head, a pulse motor commonly used for driving the head and for feeding a recording paper sheet, a cam with projections for transmitting the rotational force of the motor to the head so as to selectively move the head between the urged and separated positions with respect to the sheet or platen, ratchet gears to selectively couple the motor and a paper feed roller, and a projection and a guide roller to selectively hold the head at the separated position.