US4494886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing device
Assignee: Canon Inc
•
Filing: 1983-01-28
•
Granted: 1985-01-22
•
Expires: 2003-01-28
Abstract
Abstract A printing device having a plurality of indicating units for indicating information on the ink ribbon and having a detecting unit for ink ribbon information, with the indicating units and the detecting unit being arranged opposite to each other.
Inventors
- 👤 Hiroatsu Kondo
- 👤 Toshiaki Ozawa
- 👤 Yasuaki Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:51
CPC Classifications
B; B41; B41J; B41J35/00; B41J35/36
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
121 words
A printing device comprising: a cassette for housing an ink ribbon and having a first area for indicating a first information concerning said ink ribbon and having a second area for indicating a second information concerning the ink ribbon; means for shifting said cassette between a first position and a second position; and detecting means fixedly positioned and selectively facing either one of said first and second areas in said first and second positions and capable of detecting changes in kinds of the first and second information to be detected, said detecting means detecting only the first information when the cassette is shifted to said first position, and only the second information when the cassette is shifted to said second position.
Claim 2
Dependent Claim
121 words
A printing device comprising: a cassette for housing an ink ribbon and having a first area for indicating a first information concerning said ink ribbon and having a second area for indicating a second information concerning the ink ribbon; means for shifting said cassette between a first position and a second position; and detecting means fixedly positioned and selectively facing either one of said first and second areas in said first and second positions and capable of detecting changes in kinds of the first and second information to be detected, said detecting means detecting only the first information when the cassette is shifted to said first position, and only the second information when the cassette is shifted to said second position.
Claim 3
Dependent Claim
21 words
A printing device according to the claim 1, wherein said detecting means is an optical detector utilizing a photoelectric converting element.
Claim 4
Dependent Claim
30 words
A printing device according to the claim 2, wherein said shifting means is an electromagnetic solenoid capable of shifting said cassette between a printing position and a print confirming position.
Claim 5
Dependent Claim
30 words
A printing device according to the claim 1, wherein said shifting means is an electromagnetic solenoid capable of shifting said cassette between a printing position and a print confirming position.
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) | 1988-01-22 | 1988-07-23 | 1989-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-22 | 1992-07-23 | 1993-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-22 | 1996-07-23 | 1997-01-22 | $7700.00 | Window Closed / Lapsed |