Printer control systems for electronic postage meter

Details Printer control systems for electronic postage meter Printer control systems for electronic postage meter

1982-05-20

1983-12-20

Eickholt, E. H.

Printing

Selective or progressive

101 72, 101 91, B41J 344

Patent

active

044210230

ABSTRACT:
In an electronic postage meter, the setting motors for setting the print wheels in the printing drum are directly controllable externally of the secure portion of the meter. The meter includes a shutter bar arranged to block rotation of the printing drum under determined conditions, the printing drum being rotatable in response to drive from a postage meter base. The postage meter includes first and second interposers controlled by a microprocessor for redundantly inhibiting movement of the shutter bar from a position blocking printing of postage. One of the microprocessor controlled interposers is also mechanically coupled to the print wheel setting mechanism to inhibit release of the interposer at determined positions of the stepping mechanism, and to inhibit operation of the setting mechanism when the interposer is released.

REFERENCES:
patent: 3823666 (1974-07-01), Hanson
patent: 3916785 (1975-11-01), Burger et al.
patent: 3978457 (1976-08-01), Check, Jr. et al.
patent: 4050374 (1977-09-01), Check, Jr.
patent: 4140054 (1979-02-01), Martin et al.
patent: 4256036 (1981-03-01), Sauerwein
patent: 4259902 (1981-04-01), Eckert, Jr. et al.
patent: 4287825 (1981-09-01), Ecuert, Jr. et al.
patent: 4321867 (1982-03-01), Soderberg
patent: 4331075 (1982-05-01), Williams
patent: 4345521 (1982-08-01), Soderberg et al.

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