日本横河电机制作所试制了可以用红黑两色记录的静电复印装置。记录点密度4点/毫米,印字幅度140毫米,是一种简便的小型复印机。其特点是:(1)可以用红黑两色记录;(2)采用了红黑混合的增色剂,可以同时干式显象红黑两色;(3)记录速度较快;(4)可以同时记录图形和文字等;并且不需要复杂的机构即可达到两色化。 Yokogawa of Japan trial production of red and black can be used to record the xerographic copy device. Record the dot density of 4 points / mm, printing width of 140 mm, is a simple and small copiers. Its features are: (1) red and black can be used to record; (2) the use of a mixture of red and black toner, dry red and black at the same time the same color; (3) recording speed; (4) While recording graphics and text, etc .; and does not require complex mechanisms to achieve two-color.