Cancellation of micr-readable documents by application of an ink

Details Cancellation of micr-readable documents by application of an ink Cancellation of micr-readable documents by application of an ink

1998-08-27

2000-02-29

Jagannathan, Vasu

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524398, 524431, 252 6256, 106 3132, 106 3192, 428693, 427128, C09D 1102, C01G 4906, C01G 4908, C08K 322, C08L 3308

Patent

active

060310200

ABSTRACT:
The present invention is directed to the deliberate cancellation of MICR-readable documents by applying a penetrating ink through the MICR line of the document wherein the ink contains magnetic particles which disrupt the reading of the MICR line by the MICR reader. The magnetic particles in the ink do not penetrate along with the other ink components, but remain on or near the surface of the document. These extraneous magnetic particles interfere with MICR readers by preventing accurate reading of the encoded MICR characters and cause the MICR reader to reject such a document from normal processing automatically.

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