| 摘要 |
PROBLEM TO BE SOLVED: To sufficiently suppress a radiation noise radiated from both ends of a conductive plate member which can not be sufficiently suppressed in the conventional imaging device having the conductive plate member of rectangular shape connected to a conductive member grounded to a main unit side by a conductive plate spring or the like to be provided with an option paper feed unit mounted capable of mounting/demounting in a main unit. SOLUTION: In this invention, for instance, by arranging at least one conductive plate spring 5 in each region 43 on a conductive plate member 4 from each start point position 42 corresponding to a corner of a rectangular shape 41 of the conductive Plate member 4 to a prescribed distance L shorter than a half length K of a diagonal of the rectangular shape 41, sufficiently suppressing of a radiation noise radiated from both ends of the conductive plate member 4 is attained.
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