US5107294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image recording apparatus having detection unit for detecting malfunction of take-up roller
Assignee: Brother Industries Ltd
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Filing: 1991-05-13
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Granted: 1992-04-21
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Expires: 2011-05-13
Abstract
Abstract An image recording apparatus for forming a latent image on a photosensitive recording medium and for developing the latent image on a developer sheet. The apparatus includes a winding unit for winding up the photosensitive recording medium subjected to development, a detecting unit for detecting occurrence of malfunction of the winding unit, and an alarming unit for alarming the occurrence of malfunction. The detecting unit detects the occurrence of malfunction of the winding unit, and the detection signal from the detecting unit is supplied to the alarming unit, to thereby alarm the occurrence of malfunction and stop the copying operation.
Inventors
- 👤 Michitoshi Akao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:24
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03F; G03F7/00; G03F7/002; G03F7/0022; G03B2227/00; G03B2227/32; G03B2227/325
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
An image recording apparatus for recording an image corresponding to an original on an image recording medium; said apparatus comprising: exposing means for exposing a photosensitive recording medium to light; developing means for developing said photosensitive recording medium having a latent image formed thereon through light exposure; conveying means for conveying said photosensitive recording medium to said developing means from said exposing means; winding means for winding up said photosensitive recording medium subjected to development, said winding means including a take-up roller; detecting means for detecting occurrence of malfunction of said winding means by detecting that said take-up roller is stopped and providing a detection signal; alarming means for alarming said occurrence of malfunction; and control means for stopping an image recording operation and driving said alarming means when receiving said detection signal.
Claim 2
Dependent Claim
133 words
An image recording apparatus for recording an image corresponding to an original on an image recording medium; said apparatus comprising: exposing means for exposing a photosensitive recording medium to light; developing means for developing said photosensitive recording medium having a latent image formed thereon through light exposure; conveying means for conveying said photosensitive recording medium to said developing means from said exposing means; winding means for winding up said photosensitive recording medium subjected to development, said winding means including a take-up roller; detecting means for detecting occurrence of malfunction of said winding means by detecting that said take-up roller is stopped and providing a detection signal; alarming means for alarming said occurrence of malfunction; and control means for stopping an image recording operation and driving said alarming means when receiving said detection signal.
Claim 3
Dependent Claim
25 words
An image recording apparatus as defined in claim 1, wherein said detecting means comprises an encoder for detecting the rotational amount of the winding means.
Claim 4
Dependent Claim
21 words
An image recording apparatus as defined in claim 2, wherein said encoder is mounted on the shaft of said take-up roller.
Claim 5
Dependent Claim
26 words
An image recording apparatus as defined in claim 1, wherein said detecting means comprises a sensor for detecting the tensile state of said photosensitive recording medium.
Claim 6
Dependent Claim
23 words
An image recording apparatus as defined in claim 1, wherein said alarming means includes a display device for indicating said occurrence of malfunction.
Claim 7
Dependent Claim
18 words
An image recording apparatus as defined in claim 1, wherein said alarming means includes a sound producing device.
Claim 8
Dependent Claim
17 words
The image recording apparatus of claim 1 wherein said occurrence of malfunction comprises jamming of said apparatus.
References Cited (Backward Citations)
US3687542A
Cited
US3734052A
Cited
US4135809A
Cited
US4291843A
Cited
US4278338A
Cited
US4532500A
Cited
US4624560A
Cited
US4742374A
Cited
US4816873A
Cited
US4806982A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-04-21 | 1995-10-21 | 1996-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-21 | 1999-10-21 | 2000-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-21 | 2003-10-21 | 2004-04-21 | $7700.00 | Window Closed / Lapsed |