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公开(公告)号：FI57187B
公开(公告)日：1980-02-29
申请号：FI353472
申请日：1972-12-13
Applicant: IBM
Inventor： DAVIDGE RONALD VAUGHN , HOBGOOD JR GEORGE WILSON , QUEENER CARL ALLAN , SPEARS JESSE WAYNE , THOMPSON BERNARD GEORGE
Abstract: A continuously operating transfer reproduction apparatus includes a cyclic control unit which automatically effects alternate redevelopment and reimaging cycles when reproducing multiple copies of the same master. An electrophotographic plate travels in a closed loop past a moving optical system which images the plate with a light image of the master creating a latent electrostatic image on the plate. The latent image is developed at a developing station and transferred to a substrate at a transfer station as the plate travels therepast. Increased throughput speed is achieved by effecting a fixed number of redevelopment cycles while the moving optical system is resetting. Thus, the plate continues its travel past the resetting optical system to the developing station where the latent image is redeveloped and thence to the transfer station for transfer of the developed image to a second substrate. The plate is then cleaned and charged prior to being reimaged with the light image of the same master, and the process continues until the requisite number of copies have been reproduced. In one embodiment, multiple imaging areas, preferably an odd number thereof, are located on the plate facilitating rapid alternate imaging and redevelopment cycles.
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公开(公告)号：DK138713B
公开(公告)日：1978-10-16
申请号：DK628772
申请日：1972-12-15
Applicant: IBM
Inventor： DAVIDGE RONALD VAUGHN , HOBGOOD GEORGE WILSON , QUEENER CARL ALLAN , SPEARS JESSE WAYNE , THOMPSON BERNARD GEORGE
Abstract: A continuously operating transfer reproduction apparatus includes a cyclic control unit which automatically effects alternate redevelopment and reimaging cycles when reproducing multiple copies of the same master. An electrophotographic plate travels in a closed loop past a moving optical system which images the plate with a light image of the master creating a latent electrostatic image on the plate. The latent image is developed at a developing station and transferred to a substrate at a transfer station as the plate travels therepast. Increased throughput speed is achieved by effecting a fixed number of redevelopment cycles while the moving optical system is resetting. Thus, the plate continues its travel past the resetting optical system to the developing station where the latent image is redeveloped and thence to the transfer station for transfer of the developed image to a second substrate. The plate is then cleaned and charged prior to being reimaged with the light image of the same master, and the process continues until the requisite number of copies have been reproduced. In one embodiment, multiple imaging areas, preferably an odd number thereof, are located on the plate facilitating rapid alternate imaging and redevelopment cycles.
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公开(公告)号：AU3547871A
公开(公告)日：1973-05-17
申请号：AU3547871
申请日：1971-11-08
Applicant: IBM
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公开(公告)号：FI57187C
公开(公告)日：1980-06-10
申请号：FI353472
申请日：1972-12-13
Applicant: IBM
Inventor： DAVIDGE RONALD VAUGHN , HOBGOOD JR GEORGE WILSON , QUEENER CARL ALLAN , SPEARS JESSE WAYNE , THOMPSON BERNARD GEORGE
Abstract: A continuously operating transfer reproduction apparatus includes a cyclic control unit which automatically effects alternate redevelopment and reimaging cycles when reproducing multiple copies of the same master. An electrophotographic plate travels in a closed loop past a moving optical system which images the plate with a light image of the master creating a latent electrostatic image on the plate. The latent image is developed at a developing station and transferred to a substrate at a transfer station as the plate travels therepast. Increased throughput speed is achieved by effecting a fixed number of redevelopment cycles while the moving optical system is resetting. Thus, the plate continues its travel past the resetting optical system to the developing station where the latent image is redeveloped and thence to the transfer station for transfer of the developed image to a second substrate. The plate is then cleaned and charged prior to being reimaged with the light image of the same master, and the process continues until the requisite number of copies have been reproduced. In one embodiment, multiple imaging areas, preferably an odd number thereof, are located on the plate facilitating rapid alternate imaging and redevelopment cycles.
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Patent Agency Ranking
公开(公告)号：DE2630048A1
公开(公告)日：1977-01-27
申请号：DE2630048
申请日：1976-07-03
Applicant: IBM
Inventor： DAVIDGE RONALD VAUGHN , JAMES DORRIS DEAN , JOHNSON FREDERICK WILLIAM
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公开(公告)号：DE2257930A1
公开(公告)日：1973-06-20
申请号：DE2257930
申请日：1972-11-25
Applicant: IBM
Inventor： CECIL II THOMAS FREDERICK , DAVIDGE RONALD VAUGHN
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公开(公告)号：DE3164305D1
公开(公告)日：1984-07-26
申请号：DE3164305
申请日：1981-07-23
Applicant: IBM
Inventor： DAVIDGE RONALD VAUGHN , QUEENER CARL ALLAN , VANDERSLICE JAMES THOMAS
Abstract: Documents are automatically recirculated for copying by a copier from a stack which is accessed top document downward. Documents are stacked faceup in an upper tray and moved as a group to a lower tray where they are stacked facedown, with the first document in the upper tray appearing in a facedown position at the bottom of the lower tray. The top document in the lower tray is then removed for copying and returned to the bottom of the upper tray, thus peserving the original document order for further copying. The copier normally scans stationary documents placed on a glass platen; for example, individual sheets of paper or book pages may be placed on the glass platen and held stationary while the optics causes light to scan the page. During automatic recirculation of stacks of the documents, however, the scanning optics is "parked" and documents removed from the lower tray are imaged while scanned past a fixed exposure area on the glass platen on the way back to the upper tray.
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公开(公告)号：DE2259911A1
公开(公告)日：1973-06-28
申请号：DE2259911
申请日：1972-12-07
Applicant: IBM
Abstract: 1375747 Electro-photographic printing apparatus INTERNATIONAL BUSINESS MACHINES CORP 17 Nov 1972 [22 Dec 1971] 53123/72 Heading G2H Toner remaining on electro-photographic surface 7 after transfer of a developed image is removed by an electrically biased magnetic brush 4, after the electrostatic image has been erased by light 23, and is returned to developing apparatus 1 for re-use by electrically biased magnetic brush 2. For example the toner may be returned by being attached to the surface 7 when the apparatus if not producting prints, and corotron 22, (which usually assists transfer) gives the surface a charge which attracts toner from the brush 4. Alternatively the apparatus may be made to attach bands of returned toner to the surface 7, between positions formerly occupied by images to be developed, or toner return may be carried out by separate end portions of brush 4 and surface 7, or by auger conveyors operating independently of development. Preferably the developing apparatus 1 contains magnetic carrier particles with tetrafluorethylene coats, which give a positive charge to the toner, and the cleaning apparatus 3 contains magnetic carrier particles coated with ethyl cellulose, which places a negative charge on the toner.
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公开(公告)号：AU3654171A
公开(公告)日：1973-06-14
申请号：AU3654171
申请日：1971-12-06
Applicant: IBM
Inventor： OKCUOGLU SELAHATTIN ADEL , DAVIDGE RONALD VAUGHN , DAVIS CLAYTON JAY , SCHAEFER JOHN O'NEIL
Abstract: A mechanism is disclosed for the automatic erasing of typing errors utilizing a fully serialized and automated correction apparatus where the correction is accomplished by a single backspace operation allowing both the erasure of the erroneously typed letter and the typing of the proper letter. The backspace operation repositions the typewriter carriage for the correction of the erroneous letter and at the same time inhibits the escapement of the carriage for a single print cycle allowing the corrected letter to be printed over the correction without requiring an additional backspace operation. The escapement mechanism is re-engaged during the correction cycle so that the carriage advances of the print cycle.
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