Mailing machine including sheet feeding control means

Details Mailing machine including sheet feeding control means Mailing machine including sheet feeding control means

1991-12-19

1994-03-15

Cosimano, Edward R.

Boots, shoes, and leggings

318268, H02P 500

Patent

active

052950603

ABSTRACT:
A mailing machine base comprising, structure for feeding a sheet in a downstream path of travel, the feeding structure including opposed upper and lower rollers for feeding a sheet into the path of travel, the feeding structure including a d.c. motor connected for driving the rollers, structure for controlling the feeding means, the controlling structure including a microprocessor, the controlling structure including structure for comparing the back e.m.f. voltage of the d.c. motor to a reference voltage and providing the microprocessor with a comparison signal, and the microprocessor programmed for controlling the d.c. motor to drive the rollers at a substantially constant sheet feeding speed in response to the comparison signal.

REFERENCES:
patent: 4302821 (1981-11-01), Eckert et al.
patent: 4631681 (1986-12-01), Salazar et al.
patent: 4774446 (1988-09-01), Salazar et al.
patent: 4787311 (1988-11-01), Mol
patent: 4864505 (1989-09-01), Miller et al.
patent: 5075852 (1991-12-01), Salazar et al.
patent: 5208931 (1993-05-01), Williams et al.

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