← Back to Patent Explorer
US5021833A Expired / Lapsed US ⏱️ 0.0 years remaining

Copying machine with multiple light sources

Assignee: Sharp Corp
•
Filing: 1989-12-11
•
Granted: 1991-06-04
•
Expires: 2009-12-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A copying machine including a first light source for illuminating an original on an original table, a second light source for illuminating a slidefilm, a slide projector having a slidefilm support which supports a slidefilm movably and the second light source, a mirror which is movable to a reflecting position for reflecting the light reflected from the original onto the photosensitive member as well as to a retracted position for allowing the light from the slide projector to be directly projected onto the photosensitive member, a detector for detecting whether the mirror is in the reflecting position or in the retracted position, and a light regulator for regulating power supply to either one of the first light source or the second light source which is selectively put into operation on the basis of the detected result of the detector.

Inventors

  • 👤 Toshiaki Kobayashi
  • 👤 Yoshiaki Ibuchi
  • 👤 Naoyuki Kamei

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 20:22
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/002; G03F7/0022; G03B; G03B27/00; G03B27/32; G03G; G03G15/00; G03G15/04; G03B2227/00; G03B2227/32; G03B2227/325; G03G15/043; G03G15/0435

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 189 words
A copying machine in which light reflected from an original on an original table is directed through a prescribed light path, the light being then reflected by a prescribed mirror disposed in said light path toward a moving photosensitive member, by operating an operating unit including a first light source, said copying machine including: a slide projector having a slidefilm supporting means which movably supports a slidefilm and a second light source which illuminates the slidefilm, said slide projector being provided in such a way that said mirror and said photosensitive member are positioned in the light path of said second light source, said mirror being movable to a reflecting position for reflecting the reflected light from the original onto the photosensitive member as well as to a retracted position for allowing the light from the slide projector to be directly projected onto the photosensitive member; said copying machine further including a detecting means for detecting whether said mirror is in said reflecting position or in said retracted position, the speed of said moving photosensitive member being changed on the basis of the detected result of said detecting means.
Claim 2
Dependent Claim 189 words
A copying machine in which light reflected from an original on an original table is directed through a prescribed light path, the light being then reflected by a prescribed mirror disposed in said light path toward a moving photosensitive member, by operating an operating unit including a first light source, said copying machine including: a slide projector having a slidefilm supporting means which movably supports a slidefilm and a second light source which illuminates the slidefilm, said slide projector being provided in such a way that said mirror and said photosensitive member are positioned in the light path of said second light source, said mirror being movable to a reflecting position for reflecting the reflected light from the original onto the photosensitive member as well as to a retracted position for allowing the light from the slide projector to be directly projected onto the photosensitive member; said copying machine further including a detecting means for detecting whether said mirror is in said reflecting position or in said retracted position, the speed of said moving photosensitive member being changed on the basis of the detected result of said detecting means.
Claim 3
Dependent Claim 16 words
A copying machine according to claim 1, wherein said mirror is adapted to be moved manually.
Claim 4
Dependent Claim 20 words
A copying machine according to claim 2, wherein said detecting means is for directly detecting the position of said mirror.
Claim 5
Dependent Claim 26 words
A copying machine according to claim 1, further including a driving means, controllable by an operating switch located on an operation panel, for moving said mirror.
Claim 6
Dependent Claim 28 words
A copying machine according to claim 4, wherein said detecting means is for detecting the state of said switch so as to determine the position of said mirror.
Claim 7
Dependent Claim 237 words
A copying machine in which light reflected from an original on an original table is directed through a prescribed light path, the light being then reflected by a prescribed mirror disposed in said light path toward a moving photosensitive member, by operating an operating unit including a first light source, said copying machine including: a slide projector having a slidefilm supporting means which supports a slidefilm movably and a second light source which illuminates the slidefilm, said slide projector being provided in such a way that said mirror and said photosensitive member are positioned in the light path of said second light source, and a light regulator connected to said first light source for regulating power supply to said first light source, said mirror being movable to a reflecting position for reflecting the reflected light from the original onto the photosensitive member as well as to a retracted position for allowing the light from the slide projector to be directly projected onto the photosensitive member; said copying machine further including a detecting means for detecting whether said mirror is in said reflecting position or in said retracted position, either one of said first light source or said second light source being selectively put into operation on the basis of the detected result of said detecting means, said light regulator being connected to said second light source on the basis of the detected result of said detecting means.
Claim 8
Dependent Claim 237 words
A copying machine in which light reflected from an original on an original table is directed through a prescribed light path, the light being then reflected by a prescribed mirror disposed in said light path toward a moving photosensitive member, by operating an operating unit including a first light source, said copying machine including: a slide projector having a slidefilm supporting means which supports a slidefilm movably and a second light source which illuminates the slidefilm, said slide projector being provided in such a way that said mirror and said photosensitive member are positioned in the light path of said second light source, and a light regulator connected to said first light source for regulating power supply to said first light source, said mirror being movable to a reflecting position for reflecting the reflected light from the original onto the photosensitive member as well as to a retracted position for allowing the light from the slide projector to be directly projected onto the photosensitive member; said copying machine further including a detecting means for detecting whether said mirror is in said reflecting position or in said retracted position, either one of said first light source or said second light source being selectively put into operation on the basis of the detected result of said detecting means, said light regulator being connected to said second light source on the basis of the detected result of said detecting means.
Claim 9
Dependent Claim 16 words
A copying machine according to claim 6, wherein said mirror is adapted to be moved manually.
Claim 10
Dependent Claim 20 words
A copying machine according to claim 7, wherein said detecting means is for directly detecting the position of said mirror.
Claim 11
Dependent Claim 26 words
A copying machine according to claim 6, further including a driving means, controllable by an operating switch located on an operation panel, for moving said mirror.
Claim 12
Dependent Claim 28 words
A copying machine according to claim 9, wherein said detecting means if for detecting the state of said switch so as to determine the position of said mirror.

References Cited (Backward Citations)

US3652157A Cited
US4077714A Cited
US4111540A Cited
US4072414A Cited
US4318609A Cited
US4234250A Cited
JPS5677860A Cited
JPS607424A Cited
JPS6270888A Cited
US4774542A Cited
JPS63183458A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-06-03 1994-12-03 1995-06-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-06-03 1998-12-03 1999-06-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-06-03 2002-12-03 2003-06-04 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag