The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 1990
Filed:
Jan. 19, 1988
Katsufumi Takagishi, Hitachi, JP;
Syoichi Ito, Ibaraki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A photo printer such as a laser printer incorporates a bit map memory having a large memory capacity. When the printer is connected to a host computer, a dot pattern corresponding to a bit pattern formed in accordance with the contents of the bit map memory is printed on a sheet in a normal mode. If a special command is transmitted from the host computer to the printer, a data file used by the host computer is temporarily stored in the bit map memory. If another special command is transmitted from the host computer, the data file stored in the bit map memory is transmitted to the host computer. That is, the bit map memory in the printer is used as the memory for temporarily storing the files of the host computer.