第825章 静电复印机(1 / 2)

帝国大闲人 我本尘浮 1096 字 2022-04-22

搞定了照相机,有了照片,还需要复印机,才能把照片印刷在报纸上,而现在电力已经应用,可以研发复印机了。

复印机的工作原理是利用光导体的电位特性,在光导体没有受光照的状态下进行充电,使其表面带上均匀的电荷,然后通过光学成像原理,使原稿图像成像在光导体上。

静电复印机光导材料有很多,包括硒、氧化锌、硫化镉和有机半导体(如乙烯咔唑)等几种。

有图像部分因没有受到光照,相当于暗态,所以光导体表面仍带有电荷,而无图像区域则受到光照,相当于亮态,所以光导体表面的电荷消失,从而形成了静电潜像。

再后是通过静电原理,也就是电荷属性正反电荷异性相吸同性相斥特性,使用带有极性相反电荷的墨粉,使光导体表面的静电潜像转化成为光导体表面的墨粉图像。最后,仍然通过静电原理,将光导体表面的墨粉图像转印到复印纸表面,完成复印的基本过程。

而复印机的墨粉需要掺入具有电荷属性的材料,比如铁锈等等。

复印机的工作过程,包括,充电部件(高压发生器、电极架、电机丝)使感光鼓表面均匀地带上电荷。

曝光部件(扫描曝光灯、反光镜、镜头)使感光鼓表面按照原稿图像,形成图像的反转电位潜像。

显影部件(显影墨盒、高压发生器)将感光鼓表面的电位潜像转化为墨粉图像。

送纸部件(马达、搓纸轮)马达带动搓纸轮将复印纸送入机内,为下一步将鼓表面的墨粉图像转印到纸上做准备。

转印部件(高压发生器、电极架、电机丝)通过转印电极使复印纸表面带上均匀的与墨粉电荷相反的电荷,将感光鼓上的墨粉图像转印到复印纸上。

分离部件(高压发生器、电极架、电机丝)由于复印纸和感光鼓表面均带有电荷,而且极性相反,所以复印纸在复印过程中不易从感光鼓上分开。因此要将完成复印的复印纸顺利从鼓上分开,需要采取分离的措施,以现有技术,则采用机械分离法。

清洁部件(清洁器)将感光鼓表面的残留墨粉清洁干净,为下一复印做好准备工作。复印机不可能通过转印将感光鼓表面的墨粉完全转印到复印纸上。所以,鼓表面均有残留墨粉,不进行清洁,则影响以后复印品质量。

定影部件(定影热棍、压力棍、加热器)复印纸上的墨粉图像通过定影固定在复印纸上,以便于保存。若不经过定影,复印纸上的图像一碰就掉落。(所以定影需要一定的温度和压力)

一个复印机,涵盖了机械电子等方面的技术。

方昊把这个任务交给了匠人研究院,把原理与材料写清楚,除了感光鼓材料硒之外,其他都很容易获得,研究员们看了这个设计,无不赞叹不已。

“太精巧了!”

“这种光学复印法,比蜡纸油轮复印,实现的效率高太多了,而且,照片名画岂不是都可以复印?”

方昊微微一笑,“当然,这个不算很难,但,零件的精度要求很高,比如送纸部件,若不够精密则会卡纸,其他零件也一样,若精度不够,直接影像复印效果。”

“大家好好干,搞定这个,还有奖金!”

研究员们有些腼腆的笑了,跟着少爷干,奖金实在太多了,刚刚还分过宝石,足以作为传家宝那种,大多数人没有变现,反正钱足够花,拿去给家中的女人打首饰了。

“少爷,我们一定会尽快搞好!”

离开了匠人研究院,时间已经下午,二十个婴儿的照片已经拍好,并且洗了出来。

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