Device for register adjustment on a sheet-fed printing press

Details Device for register adjustment on a sheet-fed printing press Device for register adjustment on a sheet-fed printing press

1995-10-12

1998-09-08

Fisher, J. Reed

Printing

Multicolor

Rotary machines

B41F 502, B41F 1312

Patent

active

058029737

ABSTRACT:
Register adjustment device in a sheet-fed printing press having adjusting elements for adjusting a printing operation thereof includes a position sensor, a light source for supplying light to the position sensor, and an evaluating unit connected to the position sensor for receiving data therefrom regarding registration of printing material traveling on a path through the printing press, and the evaluating unit being further connected to the adjusting elements of the printing press for adjusting a printing operation thereof in accordance with the data, the position sensor being disposed in the vicinity of the printing-material travel path so as to determine a respective register affecting the printing material, the position sensor having at least two sensor heads disposed at spaced distances from one another; and a method of register-adjustment.

REFERENCES:
patent: 3832557 (1974-08-01), Bazhuun et al.
patent: 4485447 (1984-11-01), Ericsson
patent: 4857745 (1989-08-01), Gough
patent: 5138667 (1992-08-01), Roch et al.
Register-und Einzelstrangsteuerung an Rollenmaschinen, Druckwelt 19, Oct. 10, 1992.

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