Patent US4012142A successfully refreshed from Google Patents.
US4012142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copying machine
Assignee: Canon Inc
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Filing: 1975-08-28
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Granted: 1977-03-15
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Expires: 1995-08-28
Abstract
Abstract A copying machine includes first and second original exposing sections and an optical system having a movable reflector. The optical system is so arranged as to permit a real image to be obtained when the reflector is moved in a first position corresponding to the first original exposing section and a mirror image to be obtained when the selective optical member in a second position corresponding to the second original exposing section.
Inventors
- 👤 Shiro Serikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:45
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/04; G03G15/0409; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/522; G03B27/525
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
202 words
A copying machine comprising a housing having first and second original exposing sections to receive an original in position, photosensitive means provided within the housing, an optical system for illuminating said first and second original exposing sections and selectively directing to said photosensitive means a light reflected from the original in the original exposing section, and means for copying the original through said photosensitive means, said optical system including a selective optical member for permitting a real image to be obtained from the original in the first original exposing section when it is brought into a first position and a mirror image to be obtained from the original in the second original exposing section when it is brought into a second position including a reflector adapted to reflect the light from one of said first and second original exposing sections, a light source for selectively illuminating said first and second original exposing sections, and a shield cover for said light source selectively movable between a first position and a second position and adapted to illuminate said first original exposing section when it is brought into said first position and said second original exposing section when it is brought into said second position.
Claim 2
Dependent Claim
202 words
A copying machine comprising a housing having first and second original exposing sections to receive an original in position, photosensitive means provided within the housing, an optical system for illuminating said first and second original exposing sections and selectively directing to said photosensitive means a light reflected from the original in the original exposing section, and means for copying the original through said photosensitive means, said optical system including a selective optical member for permitting a real image to be obtained from the original in the first original exposing section when it is brought into a first position and a mirror image to be obtained from the original in the second original exposing section when it is brought into a second position including a reflector adapted to reflect the light from one of said first and second original exposing sections, a light source for selectively illuminating said first and second original exposing sections, and a shield cover for said light source selectively movable between a first position and a second position and adapted to illuminate said first original exposing section when it is brought into said first position and said second original exposing section when it is brought into said second position.
Claim 3
Dependent Claim
38 words
A copying machine according to claim 1 in which said housing has an original guide passage and a passage defining member for permitting said original guide passage to selectively communicate with said first and second original exposing sections.
Claim 4
Dependent Claim
56 words
A copying machine according to claim 2 further including a connecting mechanism mounted in association with said shield cover, said reflector and said passage defining member and adapted to, when said shield cover is selectively brought into each of said first and second positions, bring said reflector and said passage defining member into the corresponding position.
Claim 5
Dependent Claim
67 words
A copying machine according to claim 1 in which said optical system includes a first reflector for reflecting the light from said reflector and a light from the other of said first and second original exposing sections, a second reflector adapted to reflect the light of said first reflector and direct it to said photosensitive means, and a converging lens disposed between said first and second reflectors.
Claim 6
Dependent Claim
32 words
A copying machine according to claim 1 in which said photosensitive means is rotatably mounted within said housing and having a rotatable drum whose outer periphery is covered with a photosensitive layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |