Article detector for printing press

Details Article detector for printing press Article detector for printing press

1990-10-02

1995-01-24

Burr, Edgar S.

Printing

Stenciling

Stencil and work support

101474, 101115, B41F 1518

Patent

active

053834003

ABSTRACT:
An improved printing press of the type having a plurality of beds having a top surface, a flood bar for flooding ink onto a screen placed on one of said plurality of beds, and a squeegee for removing excess ink from the screen, both located at a printing station of the printing press, wherein the improvement comprises a light source, a strip of light reflective material adapted to reflect light generated by the light source, a photoelectric eye for detecting light reflected by the reflective material, and a microprocessor adapted to operatively engage with the photoelectric eye and programmed to sequentially shut off the print station should the photoelectric eye detect reflected light generated by the light source and reflected by the reflective material.

REFERENCES:
patent: 3163106 (1964-12-01), Failor
patent: 4099460 (1978-07-01), Bubley et al.
patent: 4484070 (1984-11-01), Inoue
patent: 4813351 (1989-03-01), Pierson, Jr.

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