发明授权
US4411540A Printing apparatus 失效
印刷装置

Printing apparatus
摘要:
A printing apparatus for serial printing by displacement of a printing head, in which a discriminating circuit identifies the typefont of the printing head mounted on the carriage, and a coincidence circuit compares the result of typefont identification with the typefont to be printed and provides alarm if the two are different.
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