Ink washing device for a printing machine

Details Ink washing device for a printing machine Ink washing device for a printing machine

1993-03-09

1994-07-05

Fisher, J. Reed

Printing

Antismut device

Anti-offset material application

101425, 101484, B41F 3500, B41F 3300

Patent

active

053257804

ABSTRACT:
An ink washing device is disclosed, for use in a printing machine having a deposit roller with a variable luminance outer surface. The washing device includes a blade disposed adjacent to the deposit roller, for removing excess deposit of ink on the outer surface of the deposit roller, thus causing its luminance to vary. A luminance sensor detects changes in the luminance of the outer surface. The washing operation is interrupted or continued based on the detected luminance changes.

REFERENCES:
patent: 3800702 (1974-04-01), Roberts
patent: 4686902 (1987-08-01), Allain et al.
patent: 4781115 (1988-11-01), Ueda et al.
patent: 4967664 (1990-11-01), Iijima
patent: 5105740 (1992-04-01), Loos et al.
patent: 5119132 (1992-06-01), Butler

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