US4640635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for inhibiting printing during ribbon reversal
Assignee: Citizen Watch Co Ltd
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Filing: 1984-12-20
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Granted: 1987-02-03
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Expires: 2004-12-20
Abstract
Abstract A method of feeding an ink ribbon for a printer in which the ink ribbon is frequently reused for printing action by reversing the feeding of the ribbon at the ribbon ends including suppressing the printing action of the printer for a predetermined time at the time of reversing the feeding of the ribbon at the ribbon end to prevent the ink ribbon from excessive use at the ribbon ends to prolong the useful life of the ribbon.
Inventors
- 👤 Toshihiko Nakai
- 👤 Masahiko Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:15
CPC Classifications
B; B41; B41J; B41J35/00; B41J35/36; B41J29/00; B41J29/54; B41J29/58
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
63 words
A method of feeding an ink ribbon for a printer in which the ink ribbon is frequently used for imprinting action by the reversal of feeding at the ribbon ends comprising suppressing the imprinting action of the printer for a predetermined time at the end of reversal of feeding at the ribbon ends and changing the suppression time at every reversal of feeding.
Claim 2
Independent Claim
63 words
A method of feeding an ink ribbon for a printer in which the ink ribbon is frequently used for imprinting action by the reversal of feeding at the ribbon ends comprising suppressing the imprinting action of the printer for a predetermined time at the end of reversal of feeding at the ribbon ends and changing the suppression time at every reversal of feeding.
Claim 3
Independent Claim
70 words
A method of feeding an ink ribbon for a printer in which the ink ribbon is frequently used for imprinting action by the reversal of feeding at the ribbon ends comprising suppressing the imprinting action of the printer for a predetermined time at the time of reversal of feeding at the ribbon ends and decreasing the imprinting speed for a predetermined time after reversal of feeding of the ink ribbon.
Claim 4
Independent Claim
70 words
A method of feeding an ink ribbon for a printer in which the ink ribbon is frequently used for imprinting action by the reversal of feeding at the ribbon ends comprising suppressing the imprinting action of the printer for a predetermined time at the time of reversal of feeding at the ribbon ends and decreasing the imprinting speed for a predetermined time after reversal of feeding of the ink ribbon.
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) | 1990-02-02 | 1990-08-04 | 1991-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-02 | 1994-08-04 | 1995-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-02 | 1998-08-04 | 1999-02-03 | $7700.00 | Window Closed / Lapsed |