军队文职招聘行测基础知识-计算机外设简介-打印机 - 常识判断
军队文职招聘行测基础知识-计算机外设简介-打印机减小字体增大字体军队文职招聘行测基础知识-计算机外设简介-打印机打印机是各种计算机的主要输出设备。它能将计算机的信息以单色和彩色字符、汉字、表格、图像等形式打印在纸上。
打印机的种类很多，目前常见的有点阵击打式和点阵非击打式两种。非击打式又分为喷墨打印机和激光打印机。针式打印机由打印头、字车机构、色带机构、输纸机构和控制电路组成。打印头由若干根钢针构成，通过它们击打色带，从而在同步旋转的打印纸上打印出点阵字符。在汉字的输入中一般用24针打印机。
喷墨式打印机是通过向打印机的相应位置喷射墨水点来实现图像和文字的输出。其特点是噪声低、速度快。激光打印机是利用电子成像技术进行打印。当调制激光束在硒鼓下沿轴向进行扫描时，按点阵组字的原理，使鼓面感光，构成负电荷阴影。当鼓面经过带正电荷的墨粉时，感光部分就吸附上墨粉，然后将墨粉转印到纸上，纸上的墨粉经加热熔化形成永久性的字符和图形。它的特点是速度快、无噪声、分辨率高。喷墨式打印机和激光打印机的输出质量都比较高。
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2019解放军文职招聘考试教育学英语知识点333-解放军文职人员招聘-军队文职考试-红师教育
发布时间：2019-04-28 11:44:071.表示罗列增加First, second, third,First, then / next, after that / next, finallyFor one thing for another ,On (the) one hand on the other hand,Besides / what s more / in addition / furthermore / moreover / another / also / especially / In particular2.表示时间顺序now, at present, recently, after, afterwards, after that, after a while, in a few days, at first, in the beginning, to begin with, later, next, finally, immediately, soon, suddenly, all of a sudden, at that moment, as soon as, the moment，form now on, from then on, at the same time, meanwhile, till, not until, before, after, when, while, as during3.表示解释说明now, in addition, for example, for instance, in this case, moreover， furthermore, in fact, actually4.表示转折关系but, however, while, though, or, otherwise, on the contrary, on the other hand, in contrast, despite, in spite of, even though, except (for), instead, of course, after all5.表示并列关系or, and, also, too, not only but also, as well as, both and, either or, neither nor6.表示因果关系because, because of, since, now that, as, thanks to , due to , therefore, as a result (of), otherwise, so that, such that
