发明名称 IMAGE FORMATION DEVICE
摘要 PROBLEM TO BE SOLVED: To prevent deterioration in quality of scanning image by preventing vibration due to a rotation of a cooling fan from making an optical part of an image scanning part or an image writing part vibrate sympathetically. SOLUTION: Related to an image formation device that comprises an image scanning part 1 and has a cooling fan 52 in the device, vibration frequency generated by the rotation of the cooling fan 52 is set apart from the characteristic frequency of the optical part in the image scanning part 1 and an image writing part 2 and the value that is integral multiple thereof, by a specified value.
申请公布号 JP2003152963(A) 申请公布日期 2003.05.23
申请号 JP20010345025 申请日期 2001.11.09
申请人 RICOH CO LTD 发明人 MATSUI HIDEAKI
分类号 G03G21/20;H04N1/10;H04N1/107 主分类号 G03G21/20
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