Patent US4803500A successfully refreshed from Google Patents.
US4803500A
Expired / Lapsed
US
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Ink printer means comprising interchangeable ink heads
Assignee: INKJET SYSTEMS & Co KG GmbH
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Filing: 1987-06-24
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Granted: 1989-02-07
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Expires: 2007-06-24
Abstract
Abstract An ink printer means suitable both for multi-color as well as for single-color printing. To this end, the ink printer head is interchangeably designed. A common drive circuit that is connected to the ink printer head via a coding matrix is used both for the color printing as well as for the single-color printing. The coding matrix can be directly allocated to the ink printer head or, on the other hand, it can be composed of a switchable connector strip into which the terminal elements of the ink printer head engage.
Inventors
- 👤 Artur Milbrandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:24
CPC Classifications
B; B41; B41J; B41J25/00; B41J25/34
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
140 words
An ink printer means for multi-color printing of a recording medium comprising an ink printer head provided on a printer carriage movable in line-fashion via a drive means in a print mode, said ink printer head containing a plurality of nozzles from which ink is ejected onto the recording medium to be printed, said nozzles of the ink printer head being individually driven via a multi-color control drive circuit, said ink printer head on the printer carriage being interchangeably mounted via a retaining mechanism, a first type of ink printer head being allocated to single-color ink printing and a second type of ink printer head being allocated to the multi-color ink printing and a sensing means for sensing the type of ink printer head used and, dependent thereon, switching a coding matrix connecting the nozzles to the multi-color drive circuit.
Claim 2
Dependent Claim
140 words
An ink printer means for multi-color printing of a recording medium comprising an ink printer head provided on a printer carriage movable in line-fashion via a drive means in a print mode, said ink printer head containing a plurality of nozzles from which ink is ejected onto the recording medium to be printed, said nozzles of the ink printer head being individually driven via a multi-color control drive circuit, said ink printer head on the printer carriage being interchangeably mounted via a retaining mechanism, a first type of ink printer head being allocated to single-color ink printing and a second type of ink printer head being allocated to the multi-color ink printing and a sensing means for sensing the type of ink printer head used and, dependent thereon, switching a coding matrix connecting the nozzles to the multi-color drive circuit.
Claim 3
Dependent Claim
16 words
An ink printer means according to claim 1, wherein said sensing means actuates a display means.
Claim 4
Dependent Claim
19 words
An ink printer means according to claim 1, wherein the coding matrix is allocated to the ink printer head.
Claim 5
Dependent Claim
17 words
An ink printer means according to claim 1, wherein the retaining mechanism comprises a switchable plug connector.
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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) | 1992-02-07 | 1992-08-08 | 1993-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-07 | 1996-08-08 | 1997-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-07 | 2000-08-08 | 2001-02-07 | $7700.00 | Window Closed / Lapsed |