US3765759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reader printer
Assignee: Ricoh Co Ltd
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Filing: 1972-05-01
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Granted: 1973-10-16
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Expires: 1992-05-01
Abstract
Abstract An apparatus comprising a projection lens, a first reflector and a second reflector wherein a frame of desired information of a microfilm or microfiche placed on a predetermined projection position in the apparatus, has its picture projected through the projection lens and first and second reflectors on a screen of the light transmission type to form an enlarged image of the information on it which can be observed from outside the apparatus. When it is desired to make a duplicate of the information on an enlarged scale, the second reflector is withdrawn from the path of light projection and an optical image of the information is transmitted through the projection lens and first reflector to the surface of an electrophotographic photosensitive sheet electrically charged uniformly beforehand to form an electrostatic latent image which is then developed into a visible image to provide a duplicate of the information.
Inventors
- 👤 H Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:02
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/26; G03B; G03B21/00; G03B21/10; G03B21/11; G03B21/118
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
375 words
A reader printer comprising (a) a casing; (b) means mounted on and at the front of the casing for moving a transparency in a direction to place a required portion thereof in a projection position; (c) light source means disposed in the casing beneath the projection position for projecting an image of the required portion of the transparency for duplicating the information in the portion; (d) a projection lens assembly disposed in the casing above the projection position; (e) a first reflector disposed in the casing above the projection lens assembly and arranged to reflect the light emanating from the projection lens assembly to direct it to a lower rear portion of the casing; (f) a second reflector in the casing arranged to reflect the light reflected by the first reflector and direct it to a front portion of the casing; (g) a screen of the light transmission type disposed in an opening in the front portion of the casing and in a position in which the light reflected by the second reflector forms an image thereon; (h) second reflector support means including two spaced support arms pivotally disposed in the casing below the second reflector for supporting the second reflector at their upper ends and a shaft disposed in the lower portion of the casing rearwardly adjacent said light source means and supporting saId support arms at their bases for pivoting astride said light source means; (i) means for operating the second reflector support means to pivot the second reflector from its operative position in which it is disposed in the path of light reflected by the first reflector to reflect the light and project the same on the screen to its inoperative position in which it is disposed adjacent to the screen to shield against light entering the casing; (j) photosensitive sheet transporting and positioning means disposed in the casing in a position in which the light reflected by the first reflector forms an image thereon when the second reflector is disposed in its inoperative position; (k) photosensitive sheet feed means for supplying photosensitive sheets to the photosensitive transporting and positioning means; and (l) developing means disposed downstream of the photosensitive sheet transporting and positioning means for developing the photosensitive sheets delivered thereby.
Claim 2
Dependent Claim
375 words
A reader printer comprising (a) a casing; (b) means mounted on and at the front of the casing for moving a transparency in a direction to place a required portion thereof in a projection position; (c) light source means disposed in the casing beneath the projection position for projecting an image of the required portion of the transparency for duplicating the information in the portion; (d) a projection lens assembly disposed in the casing above the projection position; (e) a first reflector disposed in the casing above the projection lens assembly and arranged to reflect the light emanating from the projection lens assembly to direct it to a lower rear portion of the casing; (f) a second reflector in the casing arranged to reflect the light reflected by the first reflector and direct it to a front portion of the casing; (g) a screen of the light transmission type disposed in an opening in the front portion of the casing and in a position in which the light reflected by the second reflector forms an image thereon; (h) second reflector support means including two spaced support arms pivotally disposed in the casing below the second reflector for supporting the second reflector at their upper ends and a shaft disposed in the lower portion of the casing rearwardly adjacent said light source means and supporting saId support arms at their bases for pivoting astride said light source means; (i) means for operating the second reflector support means to pivot the second reflector from its operative position in which it is disposed in the path of light reflected by the first reflector to reflect the light and project the same on the screen to its inoperative position in which it is disposed adjacent to the screen to shield against light entering the casing; (j) photosensitive sheet transporting and positioning means disposed in the casing in a position in which the light reflected by the first reflector forms an image thereon when the second reflector is disposed in its inoperative position; (k) photosensitive sheet feed means for supplying photosensitive sheets to the photosensitive transporting and positioning means; and (l) developing means disposed downstream of the photosensitive sheet transporting and positioning means for developing the photosensitive sheets delivered thereby.
Claim 3
Dependent Claim
68 words
A reader printer as set forth in claim 1 wherein said transparency moving means is microfiche holding means comprising a transparent base plate and a transparent presser plate bearing on the base plate, said base plate and said presser plate being adapted to hold a microfiche sheet therebetween and movable so as to permit a desired frame of information to be detected and placed in the projection position.
Claim 4
Dependent Claim
98 words
A reader printer as set forth in claim 1 wherein the casing is formed in its front lower portion with a recess provided with a top plate having two screws connected to a forward portion thereof and a headed pin connected to a rearward portion thereof, and the transparency moving means comprises a microfilm feed means including a support plate formed therein with two threaded openings adapted to threadably receive said screws therein and a cutout adapted to engage said headed pin so as to facilitate mounting of the microfilm feed means in the recess of the casing.
Claim 5
Dependent Claim
92 words
A reader printer as set forth in claim 2 wherein the casing is formed in its front lower portion with a recess provided with a top plate having two screws connected to a forward portion thereof and a headed pin connected to a rearward portion thereof, and the microfiche holding means includes a support plate formed therein with threaded openings adapted to threadably receive said screws therein and a cutout adapted to engage said headed pin so as to facilitate mounting of the microfiche holding means in the recess of the casing.
Claim 6
Dependent Claim
72 words
A reader printer as set forth in claim 1 wherein the second reflector support means is under the influence of a spring connected thereto at an angle such that the angle at which the spring exerts its biasing force on the second reflector support means is reduced to such a degree that the biasing force is almost nil when the second reflector support means supports the second reflector in its projection position.
Claim 7
Dependent Claim
48 words
A reader printer as set forth in claim 1 wherein said means for operating the second reflector support means comprises a cam, a pivotal arm adapted to move in slaved relation to said cam, and a connecting bar connecting said pivotal arm to the second reflector support means.
Claim 8
Dependent Claim
59 words
A reader printer as set forth in claim 1 further comprising a light intercepting plate disposed adjacent to said second reflector in its operative position and adapted to be pivoted in the opposite direction therefrom in conjunction with the pivoting of the second reflector to its inoperative position and by the means for operating the second reflector support means.
Claim 9
Dependent Claim
39 words
A reader printer as set forth in claim 7 wherein said light intercepting plate is connected to the means for operating the second reflector support means through a gear train adapted to increase the pivotal movement of an arm.
Claim 10
Dependent Claim
28 words
a reader printer as set forth in claim 1 wherein an operation panel is provided beneath the screen, and a duplicate tray is provided beneath the operation panel.
References Cited (Backward Citations)
US3442586A
Cited
US3619052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |