US4338035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printer
Assignee: Canon Inc
•
Filing: 1980-08-11
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Granted: 1982-07-06
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Expires: 2000-08-11
Abstract
Abstract A printer having a mechanism for moving a carriage along a platen and a mechanism for rotating a type wheel to select types is disclosed. The printer has switch for selectively transmitting the driving force from a driving source to either carriage or type wheel.
Inventors
- 👤 Hiroatsu Kondo
- 👤 Toshiaki Ozawa
- 👤 Yasuaki Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:17
CPC Classifications
B; B41; B41J; B41J1/00; B41J1/22; B41J1/24; B41J19/00; B41J19/18; B41J19/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
124 words
A printer provided with a carriage movable parallel with an axis of a platen for advancing a recording medium, comprising: a shaft rotatably mounted on said carriage; a character wheel fixed on said shaft; a pulley fixed on said shaft; and means having a first state for inhibiting rotation of said shaft and thereby causing movement of said carriage and having a second state for inhibiting movement of said carriage and thereby causing rotation of said shaft; said means comprising a guide member parallel with said axis of said platen for guiding said carriage, a rotatable member fixed on said shaft and an engaging member for engaging said rotatable member in said first state and for engaging said guide member in said second state.
Claim 2
Dependent Claim
124 words
A printer provided with a carriage movable parallel with an axis of a platen for advancing a recording medium, comprising: a shaft rotatably mounted on said carriage; a character wheel fixed on said shaft; a pulley fixed on said shaft; and means having a first state for inhibiting rotation of said shaft and thereby causing movement of said carriage and having a second state for inhibiting movement of said carriage and thereby causing rotation of said shaft; said means comprising a guide member parallel with said axis of said platen for guiding said carriage, a rotatable member fixed on said shaft and an engaging member for engaging said rotatable member in said first state and for engaging said guide member in said second state.
Claim 3
Dependent Claim
13 words
A printer according to claim 1, wherein said rotatable member comprises a gear.
Claim 4
Dependent Claim
16 words
A printer according to claim 2, wherein said engaging member comprises at least one ratched pawl.
Claim 5
Dependent Claim
16 words
A printer according to claim 2, wherein said engaging member comprises a pair of ratchet pawls.
Claim 6
Dependent Claim
29 words
A printer according to claim 4, wherein each of said pair of ratchet pawls has a plurality of teeth for engagement with a plurality of teeth of said gear.
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) | 1985-07-05 | 1986-01-04 | 1986-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-05 | 1990-01-04 | 1990-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-05 | 1994-01-04 | 1994-07-06 | $7700.00 | Window Closed / Lapsed |