Patent US5337122A successfully refreshed from Google Patents.
US5337122A
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Method and apparatus for MICR printing quality control
Assignee: Xerox Corp
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Filing: 1993-06-23
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Granted: 1994-08-09
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Expires: 2013-06-23
Abstract
Abstract A magnetic ink monitoring system is provided including a reader which outputs an electrical signal representative of a magnetic flux, a storage mechanism which stores an integral representation of a signal from a standard magnetic ink display, and a comparator operatively connected to the read means and the storage means to compare an integral signal of the electrical signal of the magnetic ink display to the integral representation of a signal from a standard magnetic ink character.
Inventors
- 👤 Fred F. Hubble, III
- 👤 Michael E. Weber
- 👤 Gerald Abowitz
- 👤 Raphael F. Bov, Jr.
- 👤 Michael G. Swales
- 👤 Paul W. Eakin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:26
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/50; G03G15/5062; G06; G06K; G06K5/00; G06K5/02; G03G2215/00; G03G2215/00025; G03G2215/0013
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
58 words
A method for controlling the application of magnetic ink characters to a substrate, comprising: generating an electrical signal representative of a magnetic ink character; comparing an integral representation of said electrical signal with an integral representation of a printed predetermined magnetic ink character; and adjusting the application of magnetic ink to a substrate according to said comparing step.
Claim 2
Independent Claim
58 words
A method for controlling the application of magnetic ink characters to a substrate, comprising: generating an electrical signal representative of a magnetic ink character; comparing an integral representation of said electrical signal with an integral representation of a printed predetermined magnetic ink character; and adjusting the application of magnetic ink to a substrate according to said comparing step.
Claim 3
Dependent Claim
17 words
The method of claim 1, wherein said electrical signal represents the width of said magnetic ink character.
Claim 4
Dependent Claim
17 words
The method of claim 1, wherein said electrical signal represents the amplitude of said magnetic ink character.
Claim 5
Dependent Claim
19 words
The method of claim 1, wherein said electrical signal represents the width and amplitude of said magnetic ink character.
Claim 6
Dependent Claim
15 words
The method of claim 1, wherein said magnetic ink character comprises a magnetic test pattern.
Claim 7
Dependent Claim
20 words
The method of claim 1, wherein said magnetic ink character is an on-line product of a magnetic ink printing process.
Claim 8
Dependent Claim
17 words
The method of claim 1, wherein the application of magnetic ink character comprises an electrostatographic printing process.
Claim 9
Dependent Claim
20 words
The method of claim 7, comprising adjusting a corona generator in said electrostatographic printing process according to said comparing step.
Claim 10
Dependent Claim
21 words
The method of claim 7, comprising adjusting a photoconductive surface discharge in said electrostatographic printing process according to said comparing step.
Claim 11
Dependent Claim
20 words
The method of claim 7, comprising adjusting a developer system in said electrostatographic printing process according to said comparing step.
Claim 12
Dependent Claim
40 words
The method of claim 1, wherein said generating step comprises; applying a test magnetic ink character to a substrate; reading said magnetic ink character as the substrate passes a read element; and generating said electrical signal representative of said character.
Claim 13
Dependent Claim
52 words
The method of claim 11, comprising: applying a predetermined magnetic ink character to a substrate; reading said predetermined magnetic ink character as the substrate passes a read element; generating an electrical signal representative of said predetermined magnetic ink character; converting the electrical signal of said predetermined magnetic ink character to integral representation.
Claim 14
Dependent Claim
24 words
The method of claim 12, comprising applying said test magnetic ink character and said predetermined magnetic ink character side by side on a substrate.
Claim 15
Dependent Claim
17 words
The method of claim 13, wherein each said magnetic ink character comprises a plurality of imaged lines.
Claim 16
Dependent Claim
29 words
The method of claim 13, comprising converting an electrical signal from each of said plurality of imaged lines of said predetermined magnetic ink character to a reference integral representation.
Claim 17
Dependent Claim
24 words
The method of claim 15, wherein each of said integral representations from said test magnetic ink character is compared to a reference integral representation.
Claim 18
Dependent Claim
50 words
The method of claim 16, wherein said comparing step comprises separately adding said test and reference integral representations and comparing the sum of said test integral representations with the sum of said reference integral representations, and adjusting the application of magnetic ink characters according to the difference between said sums.
Claim 19
Dependent Claim
29 words
The method of claim 17, wherein said displays alternate side by side and said signals are divided into test signals and into reference signals depending upon the order received.
Claim 20
Dependent Claim
53 words
The method of claim 18, comprising and comparing each of said integral representations from said test magnetic character to the integral representation from an adjacent reference magnetic ink character to give a compared value, adding each compared value, and adjusting the application of magnetic ink characters according to the sum of compared values.
Claim 21
Dependent Claim
102 words
A magnetic ink character recognition system, comprising: a reader for detecting magnetic flux generated from a magnetic ink character and outputting an electrical signal representative of said magnetic flux; an integral comparator operatively connected to said reader for comparing an integral signal of said electrical signal of said magnetic ink character to an integral representation of a signal from a printed predetermined magnetic ink character; a generator responsive to said integral comparator for generating a control signal in response to the comparing of integral signals; and a regulator responsive to said control signal for regulating a processing station of an electrostatographic printer.
Claim 22
Dependent Claim
102 words
A magnetic ink character recognition system, comprising: a reader for detecting magnetic flux generated from a magnetic ink character and outputting an electrical signal representative of said magnetic flux; an integral comparator operatively connected to said reader for comparing an integral signal of said electrical signal of said magnetic ink character to an integral representation of a signal from a printed predetermined magnetic ink character; a generator responsive to said integral comparator for generating a control signal in response to the comparing of integral signals; and a regulator responsive to said control signal for regulating a processing station of an electrostatographic printer.
Claim 23
Dependent Claim
18 words
The magnetic ink character recognition system of claim 20, comprising a printer for printing said magnetic ink character.
Claim 24
Dependent Claim
23 words
The magnetic ink display recognition system of claim 20, comprising a magnet for magnetizing said magnetic ink character to generate said magnetic flux.
Claim 25
Dependent Claim
18 words
The magnetic ink character recognition system of claim 22, comprising a printer for printing said magnetic ink display.
Claim 26
Dependent Claim
23 words
The magnetic ink character recognition system of claim 23, comprising a magnet for magnetizing said magnetic ink display to generate said magnetic flux.
Claim 27
Dependent Claim
13 words
An electrostatographic printer comprising the magnetic ink character recognition system of claim 20.
Claim 28
Dependent Claim
17 words
A self-contained magnetic ink character recognition device, comprising the magnetic ink character recognition system of claim 20.
Claim 29
Dependent Claim
30 words
The magnetic ink character recognition system according to claim 20, comprising means for converting a signal from said printed predetermined magnetic ink character to an integral representation of said signal.
Claim 30
Independent Claim
119 words
A method for controlling the application of magnetic ink characters to a substrate, comprising: applying a plurality of test magnetic ink characters and predetermined magnetic ink characters side by side to a substrate, one of each said magnetic ink characters adjacent one of each said predetermined magnetic ink characters; reading said plurality of test magnetic ink characters and said predetermined magnetic ink characters as the substrate passes a read element; generating electrical signals representative of said magnetic ink characters; converting the electrical signals to integral representations; comparing integral representations of said test magnetic ink characters with integral representations of said predetermined magnetic ink characters; and adjusting the application of magnetic ink to a substrate according to said comparing step.
Claim 31
Independent Claim
119 words
A method for controlling the application of magnetic ink characters to a substrate, comprising: applying a plurality of test magnetic ink characters and predetermined magnetic ink characters side by side to a substrate, one of each said magnetic ink characters adjacent one of each said predetermined magnetic ink characters; reading said plurality of test magnetic ink characters and said predetermined magnetic ink characters as the substrate passes a read element; generating electrical signals representative of said magnetic ink characters; converting the electrical signals to integral representations; comparing integral representations of said test magnetic ink characters with integral representations of said predetermined magnetic ink characters; and adjusting the application of magnetic ink to a substrate according to said comparing step.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-08-08 | 1998-02-07 | 1998-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-08 | 2002-02-07 | 2002-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-08 | 2006-02-07 | 2006-08-09 | $7700.00 | Window Closed / Lapsed |