Servo-controlled automatic document feeder
A servo-controlled recirculating automatic document feeder (RADF) includes a plurality of independently driven document transport devices. A picker mechanism separates documents in seriatim from a stack. An entry turnaround transport device buffers and delivers picked documents to a platen transport...
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| creator | JANSSEN DONOVAN M RITTENHOUSE LARRY E VALENT JAMES A PATCH GERALD P BERAN MARK A ASHBEE WILLIAM H COLGLAZIER DONALD F MANTEY JOHN P MARTIN RONALD J |
| description | A servo-controlled recirculating automatic document feeder (RADF) includes a plurality of independently driven document transport devices. A picker mechanism separates documents in seriatim from a stack. An entry turnaround transport device buffers and delivers picked documents to a platen transport device for exposure. After exposure, the document is transported along a simplex or duplex path for duplex or simplex copying. The document is then buffered in an exit turnaround transport device and is subsequently returned to the stack. Each transport device is independently driven by a motor and a closed-loop servo. A common reference oscillator generates source signals for the servo-loops. A microcomputer operates on the source signals and generates reference signals for driving the transport devices. |
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A picker mechanism separates documents in seriatim from a stack. An entry turnaround transport device buffers and delivers picked documents to a platen transport device for exposure. After exposure, the document is transported along a simplex or duplex path for duplex or simplex copying. The document is then buffered in an exit turnaround transport device and is subsequently returned to the stack. Each transport device is independently driven by a motor and a closed-loop servo. A common reference oscillator generates source signals for the servo-loops. A microcomputer operates on the source signals and generates reference signals for driving the transport devices.</description><language>eng</language><subject>ACCESSORIES THEREFOR ; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES ; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM ; CINEMATOGRAPHY ; CONVEYING ; ELECTROGRAPHY ; ELECTROPHOTOGRAPHY ; HANDLING THIN OR FILAMENTARY MATERIAL ; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES ; HOLOGRAPHY ; MAGNETOGRAPHY ; PACKING ; PERFORMING OPERATIONS ; PHOTOGRAPHY ; PHYSICS ; STORING ; TRANSPORTING</subject><creationdate>1984</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19840703&DB=EPODOC&CC=US&NR=4457506A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19840703&DB=EPODOC&CC=US&NR=4457506A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JANSSEN; DONOVAN M</creatorcontrib><creatorcontrib>RITTENHOUSE; LARRY E</creatorcontrib><creatorcontrib>VALENT; JAMES A</creatorcontrib><creatorcontrib>PATCH; GERALD P</creatorcontrib><creatorcontrib>BERAN; MARK A</creatorcontrib><creatorcontrib>ASHBEE; WILLIAM H</creatorcontrib><creatorcontrib>COLGLAZIER; DONALD F</creatorcontrib><creatorcontrib>MANTEY; JOHN P</creatorcontrib><creatorcontrib>MARTIN; RONALD J</creatorcontrib><title>Servo-controlled automatic document feeder</title><description>A servo-controlled recirculating automatic document feeder (RADF) includes a plurality of independently driven document transport devices. 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A picker mechanism separates documents in seriatim from a stack. An entry turnaround transport device buffers and delivers picked documents to a platen transport device for exposure. After exposure, the document is transported along a simplex or duplex path for duplex or simplex copying. The document is then buffered in an exit turnaround transport device and is subsequently returned to the stack. Each transport device is independently driven by a motor and a closed-loop servo. A common reference oscillator generates source signals for the servo-loops. A microcomputer operates on the source signals and generates reference signals for driving the transport devices.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY CONVEYING ELECTROGRAPHY ELECTROPHOTOGRAPHY HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES HOLOGRAPHY MAGNETOGRAPHY PACKING PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS STORING TRANSPORTING |
| title | Servo-controlled automatic document feeder |
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