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Article: Japanese Inventors Develop Printing Device with Sensitizing Drum
- Article from:
- US Fed News Service, Including US State News
- Article date:
- November 21, 2007
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ALEXANDRIA, Va., Nov. 21 -- Seiji Harada of Hachioji, Japan, and Kenichi Morita of Hino, Japan, have developed a printing device.
According to the U.S. Patent & Trademark Office: "The printer reads a capacity number of printed sheets and a accumulated number of printed sheets of a toner cartridge stored in a cartridge memory of toner cartridge and compares them to determine whether toner cartridge's service life has expired. Similarly, it reads toner cartridge's product information stored in the cartridge memory, and compares it with an authorized product's product information to determine whether the toner cartridge is an authorized product. If it is determined that toner cartridge's ...