Patent US4901114A successfully refreshed from Google Patents.
US4901114A
Expired / Lapsed
US
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Tri level xerography using a MICR toner in combination with a non-MICR toner
Assignee: Xerox Corp
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Filing: 1988-06-28
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Granted: 1990-02-13
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Expires: 2008-06-28
Abstract
Abstract Disclosed is an electronic printer employing tri-level xerography to superimpose two images with perfect registration during the single pass of a charge retentive member past the processing stations of the printer. One part of the composite image is formed using MICR toner, while the other part of the image is printed with less expensive black, or color toner. For example, the magnetically readable information on a check is printed with MICR toner and the rest of the check in color or in black toner that is not magnetically readable.
Inventors
- 👤 Delmer G. Parker
- 👤 Michael D. Thompson
- 👤 Gerald M. Fletcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:23
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/06; G03G13/08; G03G13/01; G03G13/013; G03G13/0137; G03G15/00; G03G15/04; G03G15/04036; G03G15/04045; G03G15/22; G03G15/221; G03G2215/00; G03G2215/00025; G03G2215/0013; G03G2215/04; G03G2215/0495; Y; Y10; Y10S; Y10S101/00; Y10S101/29
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
69 words
An improved process for electrostatically generating printed documents in a single pass which comprises: providing a substrate; using electrostatic printing method and magnetic toner, printing only character image, recognizable by magnetic character recognition devices, on said substrate for subsequent recognition by a magnetic character recognition device; and using electrostatic printing methods and non-magnetic toner, printing character images on said substrate which are not recognizable by magnetic character recognition devices.
Claim 2
Dependent Claim
69 words
An improved process for electrostatically generating printed documents in a single pass which comprises: providing a substrate; using electrostatic printing method and magnetic toner, printing only character image, recognizable by magnetic character recognition devices, on said substrate for subsequent recognition by a magnetic character recognition device; and using electrostatic printing methods and non-magnetic toner, printing character images on said substrate which are not recognizable by magnetic character recognition devices.
Claim 3
Dependent Claim
34 words
The process according to claim 1 wherein said electrostatic method comprise the formation of latent images on a charge retentive surface with subsequent rendering of said images visible with the application of toner thereto.
Claim 4
Dependent Claim
34 words
The process according to claim 2 wherein the rendering of said image visible comprises moving said charge retentive surface past at least two developer housing in a single pass of said charge retentive surface.
Claim 5
Dependent Claim
19 words
The process according to claim 3 wherein one of said toners is black and the other is another color.
Claim 6
Dependent Claim
13 words
The process according to claim 4 wherein said latent images are formed electronically.
Claim 7
Dependent Claim
106 words
An improved process for electrostatically generating printed documents in a single pass which comprises: providing a substrate; using electrostatic printing methods and black, magnetic toner, printing character images on said substrate for subsequent recognition by a magnetic character recognition device; using electrostatic printing methods and black, non-magnetic toner, printing character images on said substrate which are not recognizable by magnetic character recognition devices; and said images being formed on a charge retentive surface with subsequent rendering of said images visible with the application of toner by moving said charge retentive surface past at least two developer housings in a single pass of said charge retentive surface.
Claim 8
Dependent Claim
106 words
An improved process for electrostatically generating printed documents in a single pass which comprises: providing a substrate; using electrostatic printing methods and black, magnetic toner, printing character images on said substrate for subsequent recognition by a magnetic character recognition device; using electrostatic printing methods and black, non-magnetic toner, printing character images on said substrate which are not recognizable by magnetic character recognition devices; and said images being formed on a charge retentive surface with subsequent rendering of said images visible with the application of toner by moving said charge retentive surface past at least two developer housings in a single pass of said charge retentive surface.
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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) | 1993-02-12 | 1993-08-14 | 1994-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-12 | 1997-08-14 | 1998-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-12 | 2001-08-14 | 2002-02-13 | $7700.00 | Window Closed / Lapsed |