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    • 2. 发明专利
    • TYPE RPINTER
    • JPS57195673A
    • 1982-12-01
    • JP8093381
    • 1981-05-29
    • NIPPON TYPEWRITERHITACHI LTD
    • SUGIMOTO KIYOUJITAKANO AKIOJIYOUSHIN NOBUHIKOISE SEIJIUCHIDA SHIGERU
    • B41J7/94B41J9/48
    • PURPOSE:To obtain the printer in the title wherein circuit constants in a constant current mirror circuit are changed in correspondence with the kinds of the types to be printed and printing conditions, a hammer solenoid current is controlled, and fine adjustment of the printing pressure can be performed. CONSTITUTION:Bases of transistors 4-7 are connected to a constant voltage power source Vcc through resistors 15-18 and the output terminals P1-P4 of a printing pulse circuit 19. A memory circuits 30 stores printing pressure data, and makes the output terminals P1-P4 of the printing pulse circuit 19 output a negative printing pulse Pm in response to the types to be printed. The printing pressue can be controlled by the magnitude of the solenoid current iL. The resistance values of the resistors 11-14 are changed. Transistors 4-7 for controlling the constants of the mirror circuit which is turned ON in correspondence with the kinds of the types to be printed are changed. The overall adjustment of the printing pressure is performed by changing the resistance value R9 of a resistor 9 by a switch 29.
    • 6. 发明专利
    • Type printer
    • 类型打印机
    • JPS5955771A
    • 1984-03-30
    • JP16644682
    • 1982-09-27
    • Hitachi LtdNippon Typewriter Kk
    • SUGIMOTO KIYOUJITAKANO AKIOMASUKO KAZUYUKITSUNEMI NOBUHIKO
    • B41J1/22B41J1/16B41J9/54
    • B41J1/16
    • PURPOSE:To make it possible to prevent the lowering of printing quality caused by abrasion, by a method wherein the number of printing times of frequently- used types high in frequency to be used are counted and, when they reach the predetermined number of times, said types are exchanged with the same new types. CONSTITUTION:A plurality of type tray 1 each having frequency used types 8 high in frequency to be used are received in a cylindrical type case. A control part 11 reads type data from a printing data feed part 12 to collate types with a type list and, when they are the frequently-used types, the total number of printing times thereof are counted by a memory counter part 15 to be compared with the set number of times due to a setting apparatus 13 and, when the counted number of printing times are equal to or less than the set number of times, a printing part 14 is operated to perform printing. When reaching the set number of times, the counter part is cleared while the address data of the frequently- used types 8 is altered to that of the same new types and the printing part 14 is driven on the basis of this address data. By this method, printing quality and the use efficiency of the type plate can be enhanced.
    • 目的:为了能够防止由磨损引起的打印质量的降低,通过对使用频率高的频繁使用的类型的打印次数进行计数的方法进行计数,并且当达到预定次数时, 所述类型与相同的新类型交换。 构成:在圆筒型的情况下,接收使用频率高的8种频率使用的多个型式的托盘1。 控制部分11从打印数据馈送部分12读取类型数据以与类型列表进行比较,并且当它们是经常使用的类型时,其总打印次数由存储器计数器部分15进行计数以进行比较 具有由于设定装置13而设定的次数,并且当打印次数等于或小于设定次数时,打印部14被操作以进行打印。 当达到设定次数时,计数器部分被清除,而频繁使用的类型8的地址数据被改变为相同新类型的地址数据,并且基于该地址数据驱动打印部件14。 通过该方法,能够提高印版的印刷质量和印版的使用效率。