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US4379631A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus having a copier function and a printer function

Assignee: Canon Inc
•
Filing: 1980-06-03
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Granted: 1983-04-12
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Expires: 2000-06-03
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Abstract

Abstract This specification discloses an apparatus having both the copier function of optically exposing the surface of a photosensitive member to an original image and the printer function of converting an electrical information signal into light and exposing the surface of the photosensitive member to such light. The apparatus has a switching device for switching on and off the exposure of the surface of the photosensitive member by the copier function and the printer function, and a timing device governing the ON-OFF switching by the switching device. Thereby, the exposure of the surface of the photosensitive member by the copier function and the printer function can be switched on and off at necessary timed intervals to form an image.

Inventors

  • 👤 Takashi Kitamura

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 15:56
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/221; G03G15/04; G03G15/04036; G03G15/04045; G03G15/04072; G06; G06K; G06K15/00; G06K15/02; G06K15/12; G06K15/1276; H; H04; H04N; H04N1/00; H04N1/387; H04N1/3871

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 99 words
An apparatus for recording on a recording medium with a beam carrying information, said apparatus comprising: an original table having a transparent plate providing a surface on which an original may be placed; means defining a first optical path extending between said original table and the recording medium; means for producing a high energy beam carrying information; means defining a second optical path extending between said beam producing means and the recording medium; and means, provided across said first optical path, for blocking the high energy beam produced by said producing means from being projected to said original table.
Claim 2
Independent Claim 99 words
An apparatus for recording on a recording medium with a beam carrying information, said apparatus comprising: an original table having a transparent plate providing a surface on which an original may be placed; means defining a first optical path extending between said original table and the recording medium; means for producing a high energy beam carrying information; means defining a second optical path extending between said beam producing means and the recording medium; and means, provided across said first optical path, for blocking the high energy beam produced by said producing means from being projected to said original table.
Claim 3
Dependent Claim 17 words
An information recording apparatus according to claim 1, wherein said high energy beam is a laser beam.
Claim 4
Dependent Claim 20 words
An apparatus according to claim 2, wherein said blocking means block beams having a wavelength corresponding to said laser beam.
Claim 5
Dependent Claim 20 words
An apparatus according to claim 1, wherein said blocking means is operable to block and unblock said first optical path.
Claim 6
Dependent Claim 23 words
An apparatus according to claim 4, wherein said blocking means includes an optical element which constitutes a part of the first optical path.

References Cited (Backward Citations)

US4046471A Cited
US4124286A Cited
US4167324A Cited
US4296423A Cited
US4303332A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-04-11 1986-10-11 1987-04-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-04-11 1990-10-11 1991-04-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-04-11 1994-10-11 1995-04-12 $7700.00 Window Closed / Lapsed

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