IMAGE FORMING APPARATUS

PROBLEM TO BE SOLVED: To prevent the occurrence of uneven exposure, when the conveying direction of an image forming medium is changed, in an image forming apparatus where the conveying direction of the long-sized image forming medium in process of image formation is changed to a prescribed directio...

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Bibliographic Details
Main Author MORIMOTO KEIJI
Format Patent
LanguageEnglish
Published 07.06.2007
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
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To prevent the occurrence of uneven exposure, when the conveying direction of an image forming medium is changed, in an image forming apparatus where the conveying direction of the long-sized image forming medium in process of image formation is changed to a prescribed direction. SOLUTION: The image forming apparatus includes a winding mechanism 8 for temporarily winding the paper P, whose length is equal to or exceeding a prescribed length in a storage cavity S arranged on the downstream side of the exposure engine 7. The winding mechanism 8 winds the paper P around a winding drum 20, in a state where the front side of the paper P in the conveying direction is inserted in between the winding drum 20 and a pressure roller 21. The winding operation is also carried out during a period, when scanning exposure for the rear side of the paper P in the conveying direction is carried out by the exposure engine 7. Here, both the winding drum 20 and the pressure roller 21 are positioned at a prescribed non-contact interval. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20050330733