Chinese Character Printing Quality 文字印刷质量

dot-character printing 点阵字符打印

Chinese character printing 汉字打印

character-printing technique 喷码技术

detection of character printing quality 文字印刷质量检测

non-printing character [计] 非打印字符 ; 控制字符

printing character 印字字码

dot-character nonimpact printing technique 非打击式点阵字符印刷技术

dot-character impact printing technique 击打式点阵字符打印技术