US4467332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for regenerating ink sheet
Assignee: Ricoh Co Ltd
•
Filing: 1983-03-08
•
Granted: 1984-08-21
•
Expires: 2003-03-08
Abstract
Abstract A process for regenerating an ink sheet which comprises disposing an electrodepositing electrode in contact with a base layer of a used ink sheet comprised of a base layer and an ink layer superimposed on one side of said base layer, said ink layer having hollowed parts therein; disposing an opposed electrode at a fixed interval on the side of said ink layer; supplying a powder ink onto the surface of the opposed electrode while impressing a fixed voltage between these electrodepositing electrode and opposed electrode, said powder ink being formed of the same or substantially same components as those of said ink layer; transferring said powder ink from the surface of said opposed electrode to the hollowed parts of the ink layer for adhering thereto; and thereafter fixing.
Inventors
- 👤 Eiichi Akutsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:01
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/398; B41J; B41J31/00; B41J31/14; B41M5/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
158 words
A process for generating an ink sheet which comprises disposing an electrodepositing electrode in contact with a base layer of a used ink sheet comprised of an electrically conductive base layer and an ink layer superimposed on one side of said base layer, said ink layer having hollowed parts therein; disposing an opposed electrode at a fixed interval on the side of said ink layer; supplying a powder ink on the surface of the opposed electrode while impressing a fixed voltage between these electrodepositing electrode and opposed electrode, said powder ink being formed of the same or substantially same components as those of the ink layer and having a fixed voltage or conductivity sufficient to permit injection of inductive charge from the opposed electrode; transferring said powder ink from the surface of said opposed electrode mainly to the hollowed parts of said ink layer for adhering thereto; and thereafter fixing said adhered powder ink onto the base layer.
Claim 2
Dependent Claim
158 words
A process for generating an ink sheet which comprises disposing an electrodepositing electrode in contact with a base layer of a used ink sheet comprised of an electrically conductive base layer and an ink layer superimposed on one side of said base layer, said ink layer having hollowed parts therein; disposing an opposed electrode at a fixed interval on the side of said ink layer; supplying a powder ink on the surface of the opposed electrode while impressing a fixed voltage between these electrodepositing electrode and opposed electrode, said powder ink being formed of the same or substantially same components as those of the ink layer and having a fixed voltage or conductivity sufficient to permit injection of inductive charge from the opposed electrode; transferring said powder ink from the surface of said opposed electrode mainly to the hollowed parts of said ink layer for adhering thereto; and thereafter fixing said adhered powder ink onto the base layer.
Claim 3
Dependent Claim
24 words
A process according to claim 1 wherein the distance between said ink layer and said opposed electrode is in the range of 0.5-8 mm.
Claim 4
Dependent Claim
25 words
A process according to claim 1 wherein the voltage impressed between said electrodepositing electrode and said opposed electrode is in the range of 50-1000 V.
Claim 5
Dependent Claim
16 words
A process according to claim 1 wherein said opposed electrode is earthed in case of necessity.
Claim 6
Dependent Claim
13 words
A process according to claim 1 wherein said fixation is effected by heating.
Claim 7
Dependent Claim
13 words
A process according to claim 1 wherein said fixation is effected by pressure.
Claim 8
Dependent Claim
37 words
A process according to claim 1 wherein the magnitude of said powder ink is in the range of 1-100μ in terms of average particle diameter and in the range of 0.5-30μ in terms of standard deviation σ.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-21 | 1988-02-20 | 1988-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-21 | 1992-02-20 | 1992-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-21 | 1996-02-20 | 1996-08-21 | $7700.00 | Window Closed / Lapsed |