Print inspection method, print inspection apparatus and automati

Details Print inspection method, print inspection apparatus and automati Print inspection method, print inspection apparatus and automati

1988-09-30

1989-10-03

Hartary, Joseph W.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

209583, 209939, 346 25, 346 75, 358101, 358106, 382 8, 382 34, G06K 900, B41V 304, G01D 2100

Patent

active

048720240

ABSTRACT:
A method for inspecting whether a print pattern composed of a number of dots is acceptable, an apparatus for inspecting such a print pattern, and an automatic print sorting system are disclosed. A print pattern of an acceptable print sample and a print pattern printed on an article to be inspected are compared with respect to dot distribution, dot density, and other factors. The print patterns on all articles on a high-speed production line can be automatically inspected.

REFERENCES:
patent: 4019187 (1977-04-01), Omori
patent: 4345312 (1982-08-01), Yasuye
patent: 4641355 (1987-02-01), Hongo
patent: 4758782 (1988-07-01), Kobayashi

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