Electronic device for controlling a printing machine

Details Electronic device for controlling a printing machine Electronic device for controlling a printing machine

1989-08-22

1991-04-30

Fisher, J. Reed

Printing

Planographic

Dampeners

101365, B41F 3104, B41F 1312

Patent

active

050108123

ABSTRACT:
Data entry and display apparatus for a printing machine having a plurality of control elements having actual and desired position values for controlling machine variables which include ink and dampening fluid density and register positions, the control apparatus includes a control panel having a plurality of optical first elements for displaying and controlling at least one of the machine variables; a light pen having a contact point which includes a second optical element for operatively, optically engaging the first optical elements; timing means operatively engaging the first and second optical element for timingly coordinating the position of the contact point in spaced relationship with the first optical elements for entering nominal position values for at least one of the control elements into the control apparatus.

REFERENCES:
patent: 3474438 (1969-10-01), Lauher
patent: 3760373 (1973-08-01), Bartz
patent: 3768073 (1973-10-01), Rawson et al.
patent: 3898643 (1975-08-01), Ettlinger
patent: 3930447 (1976-01-01), Murray
patent: 4238792 (1980-12-01), Cohen et al.
patent: 4329923 (1982-05-01), Iida

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