US4887094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal recording apparatus
Assignee: Eastman Kodak Co
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Filing: 1988-12-22
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Granted: 1989-12-12
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Expires: 2008-12-22
Abstract
Abstract A thermal recording apparatus is provided with a recording head and a sheet of recording paper shiftable relative to each other in a direction parallel to a row of heating elements through a distance which is smaller than the pitch of the heating elements, whereby the transfer process which has in the past been completed in one step is carried out in a multiplicity of steps. Accordingly, it is possible to obtain an image of higher density than can be obtained in the prior art.
Inventors
- 👤 Masaki Izumi
- 👤 Tsutomu Miura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:00
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/485; B41J2/505; B41J2/515; B41J2/315; B41J2/32; B41J2/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A thermal recording apparatus comprising: a recording head having a row of heating elements spaced at a pitch t; means including a platen roller for supporting a sheet of recording paper adjacent to said recording head, said platen roller being supported for rotation and axial movement; driving means for moving the sheet of recording paper in a direction substantially perpendicular to said row of heating elements; means for shifting said platen roller relative to the sheet of recording paper in a direction parallel to said row of heating elements through a distance which is smaller than the pitch t of said heating elements; and wherein said shifting means includes a frame, and cam means disposed between said platen roller and said frame and adapted to axially move said platen roller every time said platen roller rotates one full turn.
Claim 2
Dependent Claim
139 words
A thermal recording apparatus comprising: a recording head having a row of heating elements spaced at a pitch t; means including a platen roller for supporting a sheet of recording paper adjacent to said recording head, said platen roller being supported for rotation and axial movement; driving means for moving the sheet of recording paper in a direction substantially perpendicular to said row of heating elements; means for shifting said platen roller relative to the sheet of recording paper in a direction parallel to said row of heating elements through a distance which is smaller than the pitch t of said heating elements; and wherein said shifting means includes a frame, and cam means disposed between said platen roller and said frame and adapted to axially move said platen roller every time said platen roller rotates one full turn.
References Cited (Backward Citations)
JPS60137669A
Cited
JPS6232059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-11 | 1993-06-12 | 1993-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-11 | 1997-06-12 | 1997-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-11 | 2001-06-12 | 2001-12-12 | $7700.00 | Window Closed / Lapsed |