Document feeding and printing apparatus

Details Document feeding and printing apparatus Document feeding and printing apparatus

1986-05-05

1987-08-25

Eickholt, E. H.

Printing

Rolling contact machines

Rotary

101238, 101240, B41F 1324

Patent

active

046884815

ABSTRACT:
A document printer in which a print drum is driven by a direct current electric motor whose voltage is controlled by a first voltage regulator circuit for supplying a first voltage to the motor during a non-printing operating condition and a voltage boost circuit for supplying a higher voltage to the motor during a printing operating condition so that the same document feed rate is maintained throughout the operation of the device.

REFERENCES:
patent: 3623805 (1971-11-01), Egnaczak
patent: 3626846 (1971-12-01), Wiegert
patent: 4015523 (1977-04-01), Evans et al.
patent: 4362100 (1982-12-01), Wu
patent: 4399750 (1983-08-01), O'Brien
patent: 4470349 (1984-09-01), Godlewski
patent: 4561352 (1985-12-01), Svyatsky et al.

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