US4027963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-mode reproducing apparatus
Assignee: Xerox Corp
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Filing: 1975-06-20
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Granted: 1977-06-07
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Expires: 1995-06-20
Abstract
Abstract A reproducing apparatus having a plurality of modes of operation. The apparatus includes a moving imaging surface. In a first mode of operation a stationary document is viewed and an image thereof is projected onto the imaging surface. In a second mode a document moving at a first speed synchronized to the speed of the moving imaging surface is viewed, and an image thereof is projected onto the imaging surface at a desired magnification. In a third mode a document moving at a second speed synchronized to the speed of the moving imaging surface is viewed and an image thereof is projected onto the surface at a reduced magnification. An arrangement for selecting the desired mode of operation is provided.
Inventors
- 👤 Werner F. Hoppner
- 👤 Richard A. Spinelli
- 👤 Robert F. Allis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:46
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/04; G03G15/041
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
144 words
In a reproducing apparatus including an imaging surface which moves during operation, means for viewing a stationary document in a first mode of operation and for projecting an image thereof onto said imaging surface, means for viewing a document moving at a first speed synchronized to the speed of said moving imaging surface in a second mode of operation and for projecting an image thereof at a desired magnification onto said imaging surface, the improvement wherein said apparatus further includes: means for viewing a document moving at a second speed synchronized to the speed of said moving imaging surface in a third mode of operation and for projecting an image thereof onto said moving imaging surface at a reduced magnification as compared to said desired magnification, said second speed being greater than said first speed; and means for selecting between said modes of operation.
Claim 2
Dependent Claim
144 words
In a reproducing apparatus including an imaging surface which moves during operation, means for viewing a stationary document in a first mode of operation and for projecting an image thereof onto said imaging surface, means for viewing a document moving at a first speed synchronized to the speed of said moving imaging surface in a second mode of operation and for projecting an image thereof at a desired magnification onto said imaging surface, the improvement wherein said apparatus further includes: means for viewing a document moving at a second speed synchronized to the speed of said moving imaging surface in a third mode of operation and for projecting an image thereof onto said moving imaging surface at a reduced magnification as compared to said desired magnification, said second speed being greater than said first speed; and means for selecting between said modes of operation.
Claim 3
Dependent Claim
100 words
An apparatus as in claim 1, wherein said first mode means includes optical means having an optical path for progressively scanning said stationary document and wherein said second mode means includes means for fixing said scanning optical means at a given position, and document feeding means for moving said document past said fixed scanning optics, and wherein said third mode means includes means for changing the conjugate, said conjugate changing means including at least one add reflector independent of said scanning optical means and selectively positionable in said optical path when said scanning optical means is fixed at said position.
Claim 4
Dependent Claim
41 words
An apparatus as in claim 2, wherein said optical means includes a lens and means for translating said lens between a base position for said first and second modes of operation and a reduction position for said third mode of operation.
Claim 5
Dependent Claim
14 words
An apparatus as in claim 3, wherein said lens is translated laterally and upwardly.
Claim 6
Dependent Claim
73 words
An apparatus as in claim 4, wherein said apparatus comprises a compact electrostatographic reproducing apparatus and wherein said imaging surface comprises a photoconductive surface, and wherein said apparatus further includes means for charging said photoconductive surface prior to its receiving said projected image whereby upon projection of said image a latent electrostatic image is formed on said surface, said apparatus further including means for developing said latent electrostatic image to render it visible.
Claim 7
Dependent Claim
21 words
An apparatus as in claim 5, further including means for transferring said visible image to a sheet of final support material.
Claim 8
Dependent Claim
47 words
An apparatus as in claim 1, wherein said viewing means comprise optical means having an optical ray path and wherein said optical means for said third mode of operation includes means for changing a conjugate of said optical means to provide said projected image of reduced magnification.
Claim 9
Dependent Claim
69 words
An apparatus as in claim 7, wherein said viewing means include a lens and a first reflector arranged to be scanned past said document at a speed synchronized to that of said imaging surface or to be held in a fixed position to view said moving document, said lens and reflector being used in the optical ray path of said optical means for each of said modes of operation.
Claim 10
Dependent Claim
41 words
An apparatus as in claim 8, wherein said means for changing said conjugate comprises at least one add reflector independent of said scanning reflector and selectively positionable in the optical ray path when said scanning reflector is fixed at said position.
Claim 11
Dependent Claim
123 words
An apparatus as in claim 9, further including a second reflector arranged to be scanned past said document at half the speed of said first reflector, said first reflector receiving the image ray from said document and reflecting it toward said second reflector, said second reflector being arranged to receive the image ray from said first reflector and reflect it toward said lens, said lens being arranged to receive said reflective image ray from said second reflector, and for projecting said image to said imaging surface, and wherein said add reflector is arranged to receive the reflected image ray from said second reflector and reflect the image ray back to said second reflector to form a reflection cavity for increasing the object conjugate.
Claim 12
Dependent Claim
35 words
An apparatus as in claim 10, further including means for translating said lens between a base portion for said first and second modes of operation and a reduction position for said third mode of operation.
Claim 13
Dependent Claim
14 words
An apparatus as in claim 11, wherein said lens is translatable laterally and upwardly.
Claim 14
Dependent Claim
73 words
An apparatus as in claim 11, wherein said apparatus comprises a compact electrostatographic reproducing apparatus and wherein said imaging surface comprises a photoconductive surface and wherein said apparatus further includes means for charging said photoconductive surface prior to its receiving said projected image whereby upon projection of said image a latent electrostatic image is formed on said surface, said apparatus further including means for developing said latent electrostatic image to render it visible.
Claim 15
Dependent Claim
21 words
An apparatus as in claim 13, further including means for transferring said developed image to a sheet of final support material.
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) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |