formfeed
1. formfeed character
换页符
2. For these functions, a printable character is a character with a visible representation;whitespace is one of space, tab, vertical tab, return, newline, and formfeed;
表中的这些函数,可打印的字符是指那些可以表示的字符,空白字符则是空格、制表符、垂直制表符、回车符、换行符和进纸符中的任意一种;
3. It is suitable for different sizes of papers; the formfeed width is wider than the same type of others.
适应各类规格纸张,进纸宽度超过同类机种。