Control apparatus and method for image-forming system
In an image-forming system where a photosensitive belt is exposed to and scanned with a laser beam to form an image on the surface of the photosensitive belt, a standard pattern having laser beam-transmitting portions and non-transmitting portions arranged alternately in the direction of main scanni...
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| creator | HANEDA SATOSHI FUKUCHI MASAKAZU |
| description | In an image-forming system where a photosensitive belt is exposed to and scanned with a laser beam to form an image on the surface of the photosensitive belt, a standard pattern having laser beam-transmitting portions and non-transmitting portions arranged alternately in the direction of main scanning of the laser beam is formed on the photosensitive belt, and light-detecting means is disposed to detect the intensity of the laser beam transmitted through the transmitting portions. Dislocation of the focal point of the laser beam is detected based on the difference of the detected beam intensity between the transmitting portions and the non-transmitting portions, and based on the result of this detection, a collimator lens is moved in the direction of the optical axis to correct the dislocation of the focal point. |
| format | Patent |
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Dislocation of the focal point of the laser beam is detected based on the difference of the detected beam intensity between the transmitting portions and the non-transmitting portions, and based on the result of this detection, a collimator lens is moved in the direction of the optical axis to correct the dislocation of the focal point.</description><edition>5</edition><language>eng</language><subject>CALCULATING ; CINEMATOGRAPHY ; COMPUTING ; CORRECTION OF TYPOGRAPHICAL ERRORS ; COUNTING ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; ELECTROGRAPHY ; ELECTROPHOTOGRAPHY ; HANDLING RECORD CARRIERS ; HOLOGRAPHY ; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME ; LINING MACHINES ; MAGNETOGRAPHY ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PERFORMING OPERATIONS ; PHOTOGRAPHY ; PHYSICS ; PICTORIAL COMMUNICATION, e.g. TELEVISION ; PRESENTATION OF DATA ; PRINTING ; RECOGNITION OF DATA ; RECORD CARRIERS ; SELECTIVE PRINTING MECHANISMS ; STAMPS ; TRANSPORTING ; TYPEWRITERS</subject><creationdate>1993</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=19931026&DB=EPODOC&CC=US&NR=5257047A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19931026&DB=EPODOC&CC=US&NR=5257047A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HANEDA; SATOSHI</creatorcontrib><creatorcontrib>FUKUCHI; MASAKAZU</creatorcontrib><title>Control apparatus and method for image-forming system</title><description>In an image-forming system where a photosensitive belt is exposed to and scanned with a laser beam to form an image on the surface of the photosensitive belt, a standard pattern having laser beam-transmitting portions and non-transmitting portions arranged alternately in the direction of main scanning of the laser beam is formed on the photosensitive belt, and light-detecting means is disposed to detect the intensity of the laser beam transmitted through the transmitting portions. 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Dislocation of the focal point of the laser beam is detected based on the difference of the detected beam intensity between the transmitting portions and the non-transmitting portions, and based on the result of this detection, a collimator lens is moved in the direction of the optical axis to correct the dislocation of the focal point.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING CINEMATOGRAPHY COMPUTING CORRECTION OF TYPOGRAPHICAL ERRORS COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY ELECTROPHOTOGRAPHY HANDLING RECORD CARRIERS HOLOGRAPHY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES MAGNETOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRESENTATION OF DATA PRINTING RECOGNITION OF DATA RECORD CARRIERS SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS |
| title | Control apparatus and method for image-forming system |
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