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1.DR 系列打字机的特点本机最大的特点是使用微处理机,这一点在下一节叙述,这里先将总体结构上的一些特点加以说明。1.1 滑架它是移动打印头的机械部件,作为一个例子,在图1上表示的是装配有摩擦式输纸装置的310型打字机的内部结构。由驱动马达带动齿皮带,固定在齿皮带上的打印头在导轨上滑动,结构非常简单。后面还要谈到,没有必要进行所谓的“回车”,以后再从左向右印字,所以不用考虑使打印头高速回到原始位置,只需通过电路改变马达的转向,在低噪音无振动的情况下进行印字。
1.DR Series Typewriter Features The biggest feature of this machine is the use of microprocessors, which is described in the next section, first of all the characteristics of the overall structure to be described. 1.1 Carriage It is a mechanical part that moves the printhead. As an example, Figure 1 shows the internal structure of a Type 310 typewriter equipped with a friction feeder. Driven by the drive motor toothed belt, fixed in the toothed belt on the print head sliding on the rail, the structure is very simple. It should be mentioned later that it is not necessary to carry out a so-called “carriage return” and later print from left to right, so it is not necessary to consider returning the print head to its original position at a high speed by simply changing the motor’s steering via a circuit and vibrating at low noise The case of printing.