发明名称 DEVICE FOR EXPOSING NO-IMAGE FORMING MARGINAL SECTION OF COPYING DEVICE
摘要 <p>PURPOSE:To secure sufficient light quantities at end section of the no-image forming marginal section of a photosensitive body and to clear the contour of marginal section of transfer paper, by providing a luminous body inclined at a prescribed angle with the longitudinal direction of the photosensitive drum. CONSTITUTION:A base plate 3 is formed of a platybody having almost the same dimension as the length of a photosensitive drum 1 and a primary charger 6 is provided along the longitudinal direction at the central part of the base plate 3. Plural die-destaticizing lamps 7 and exposure lamps 4 for no-image forming section are provided below and above the primary charger 6, respectively. An exposure lamp 8 for exposing the no-image forming marginal section of the drum 1 is provided inside a cover 5 at an inclined angle of alpha. The light quantity distribution of the lamp 8 is moved toward the margin inside the cover 5 and the light quantity at the marginal section (a) inside the cover 5 can be secured sufficiently.</p>
申请公布号 JPS61223865(A) 申请公布日期 1986.10.04
申请号 JP19850066331 申请日期 1985.03.29
申请人 CANON INC 发明人 MIYAUCHI YASUO
分类号 G03G21/00;G03G15/047 主分类号 G03G21/00
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