Indicia security via variable dot size

Details Indicia security via variable dot size Indicia security via variable dot size

1994-11-14

1996-05-07

Wiecking, David A.

Printing

Selective or progressive

Rotary machines

40012430, 347 15, 382299, 364408, 235101, B41J 201

Patent

active

055135633

ABSTRACT:
A system is disclosed that makes it more difficult to print fraudulent indicia. Security is achieved by varying the dot size of pixels in the printed image according to a predetermined arrangement.

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