Method of and a circuit for metering ink in printing machines

Details Method of and a circuit for metering ink in printing machines Method of and a circuit for metering ink in printing machines

1988-06-30

1990-01-30

Fisher, J. Reed

Printing

Inkers

Roller

101483, B41F 3106, B41L 2708

Patent

active

048966029

ABSTRACT:
A stepper drive for an ink doctor roller of a rotary printing machine is power supplied by incremental voltages of uniform magnitude derived from the rotary speed of the machine. The magnitude of an ink metering step of the doctor roller is selected in an evaluation unit which determines the number of incremental voltages supplied to the stepper drive. At the same time, the rate of the selected metering steps is selected in dependency on the rotary speed of the machine by a rate selection means.

REFERENCES:
patent: 4765241 (1988-08-01), Hank

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