MICR (From Wikipedia):
Magnetic Ink Character Recognition, or MICR, is a character recognition technology used primarily by the banking industry to facilitate the processing of cheques. The technology allows computers to read information (such as account numbers) off printed documents. Unlike barcodes or similar technologies, however, MICR codes can be easily read by humans.
MICR characters are printed in special typefaces with a magnetic ink or toner, usually containing iron oxide. As a machine decodes the MICR text, it first magnetizes the characters in the plane of the paper. Then the characters are passed over a MICR read head, a device similar to the playback head of a tape recorder. As each character passes over the head it produces a unique waveform that can be easily identified by the system.
The use of magnetic printing allows the characters to be read reliably even if they have been overprinted or obscured by other marks, such as cancellation stamps and signature. The error rate for the magnetic scanning of a typical check is smaller than with optical character recognition systems. For well printed MICR documents, the "can't read" rate is usually less than 1% while the substitution rate (misread rate) is in the order of 1 per 100,000 characters.
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In 2011, 98% of the MICR impression are made from laser printer. There is a tendency for cost, environmental, energy and logistics reasons to replace the laser printer technology to inkjet.
For this R&D challenge, we must:
- Have a high density of solids dispersion of ferrimagnetic material.
- A low viscosity.
- A strong magnetic remanence.
- A dispersion with a very small particle size.
So, we did it!
Now we have a very stable inkjet MICR ink, with magnetic signal above 110%.
Regards,
Tarik Della Santina Mohallem
R&D Director
Nanum Nanotecnologia SA
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