Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent
1985-10-07
1987-06-16
Pieprz, William
Typewriting machines
Typing by other than type-face or type-die
Character formation by impact
400 82, 400 54, 400695, 101 91, 101425, 101426, B41J 302, B41J 2940, B41J 2926
Patent
active
046733035
ABSTRACT:
A postage meter utilizing an offset printing roll. A die plate carried by the roll has a first region for receiving thereon fixed information such as the city and state, and a second region for receiving thereon variable information such as the date and postage amount. At the beginning of a revolution of the printing roll, the second region is depressed and an inking roll applies ink to the first region. Then the second region is moved into the plane of the first region and an ink jet printing device projects ink droplets onto the second region to form the variable information thereon. The quality of the printed form of the variable information is sensed. If acceptable, a document is printed. If unacceptable, the first and second regions are both wiped clean and the entire operation is repeated. The cleaning operation can employ an hydrophilic oil which is applied to the printing roll. Furthermore, apparatus can be employed to improve the characteristics of the ink after it has been applied to the printing roll but before it reaches the document to be printed.
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patent: 4095890 (1978-06-01), Van Herten
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patent: 4396276 (1983-08-01), Murasaki
patent: 4536082 (1985-08-01), Motohashi
patent: 4536156 (1985-08-01), Durkee et al.
Chang Mike S. H.
Cruz-Uribe Antonio S.
Sansone Ronald P.
Pieprz William
Pitchenik David E.
Pitney Bowes Inc.
Scolnick Melvin J.
Vrahotes Peter
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