Method and device for reducing register errors in multicolor rot

Details Method and device for reducing register errors in multicolor rot Method and device for reducing register errors in multicolor rot

1986-12-08

1991-08-06

Fisher, J. Reed

Printing

Multicolor

Processes

101181, B41F 522, B41F 3316

Patent

active

050367641

ABSTRACT:
Method of reducing register errors in multicolor offset printing machines having printing units driven by a common motor and having a register adjusting device, which includes determining and storing a functional relationship between a quantity of torque delivered by the common motor and a quantity characteristic of the torque, on the one hand, and a register adjustment necessary for maintaining satisfactory register, on the other hand, monitoring the quantity during operation of the printing machine, and setting the register adjustment to a value functionally associated with the respective torque.

REFERENCES:
patent: 3452261 (1969-06-01), Tagliasacchi
patent: 4495582 (1985-01-01), Dessert et al.

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