Patent US4970528A successfully refreshed from Google Patents.
US4970528A
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Method for uniformly drying ink on paper from an ink jet printer
Assignee: HP Inc
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Filing: 1988-11-02
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Granted: 1990-11-13
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Expires: 2008-11-02
Abstract
Abstract Disclosed herein is a uniform heat flux dryer system and method of an ink jet printer, including a 180° contoured paper transport path for transferring paper from an input paper supply tray to an output paper collection tray. During this transfer, the paper receives a uniform heat flux from an infrared bulb which is located at the axis of symmetry for the paper transport path, and reflectors are positioned on each side of the infrared bulb to maximize heat transmission from the bulb to the paper during the ink drying process. Advantageously, the input and output paper trays may be vertically aligned on one side of the printer to facilitate loading and unloading of the paper.
Inventors
- 👤 Richard F. Beaufort
- 👤 Paul R. Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:45
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/0015; B41J11/002; B41J11/0021; B41J11/00216; B41J11/00218
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A method for loading, uniformly drying, and then unloading in sequence ink jet paper in an ink jet printer comprising the steps of: a. stacking paper on one side of an ink jet printer, b. moving said paper from said one side and around an approximate 180° path and back to the said one side of said printer while simultaneously, c. radiating heat uniformly to said paper as it moves over said approximate 180° path to uniformly dry said paper, and d. stacking the dried paper on the same side of the printer as the unprinted loaded ink jet paper, whereby uniform paper drying is achieved during 180° paper transport from input to output paper trays of an ink jet printer.
Claim 2
Independent Claim
121 words
A method for loading, uniformly drying, and then unloading in sequence ink jet paper in an ink jet printer comprising the steps of: a. stacking paper on one side of an ink jet printer, b. moving said paper from said one side and around an approximate 180° path and back to the said one side of said printer while simultaneously, c. radiating heat uniformly to said paper as it moves over said approximate 180° path to uniformly dry said paper, and d. stacking the dried paper on the same side of the printer as the unprinted loaded ink jet paper, whereby uniform paper drying is achieved during 180° paper transport from input to output paper trays of an ink jet printer.
References Cited (Backward Citations)
US4774523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-11-12 | 1994-05-14 | 1994-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-12 | 1998-05-14 | 1998-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-12 | 2002-05-14 | 2002-11-13 | $7700.00 | Window Closed / Lapsed |