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4. 发明专利

JP5278798B2 Printer 有权
公开(公告)号：JP5278798B2
公开(公告)日：2013-09-04
申请号：JP2008245129
申请日：2008-09-25
申请人：株式会社リコー
发明人：祐樹菊島 , 秀規岩永 , 孝二土井 , 俊秀稲葉 , 雅弘水野
IPC分类号： B41J11/42
摘要： PROBLEM TO BE SOLVED: To provide a printing apparatus which does not cause an erroneous detection of a sensor and is excellent in reliability. SOLUTION: A transmission type web jam detecting sensor is positioned inside of the end part in the width direction of a paper and between a tractor pin guide in a tractor mechanism for conveying a web and a paper guide, and a pair of or a plurality of pairs of them are provided at positions where the distance h between the transmission type web jam detecting sensor for detecting the web jam and the web is 1-2 mm. COPYRIGHT: (C)2010,JPO&INPIT

5. 发明专利

JP5359089B2 The fixing device 有权
公开(公告)号：JP5359089B2
公开(公告)日：2013-12-04
申请号：JP2008191601
申请日：2008-07-25
申请人：株式会社リコー
发明人：雅弘水野
IPC分类号： G03G15/20 , B65H5/06 , B65H29/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing unit that can reduce the frequency of the occurrence of a roller wrapping error, prolongs a service life of a web feed-out roller, and can surely detect an error without causing a failure of a part or the like even if roller wrapping occurs. SOLUTION: The fixing unit is provided with a mechanism for varying a force for pressing the web feed-out roller 5 for ejecting a web W which is fed out by a heat roller 1 and a pressing roller 3 outside a printer, has a web feed-out speed detection sensor 7 for detecting the speed of the web W arranged at a bottom of the web feed-out roller 5, and is provided with a control means for reducing the frequency of the roller wrapping by taking an action for evading a state that the roller wrap error may occur by increasing the force for feeding out the web W to the outside of the printer by increasing the force for pressing the web feed-out roller 5 when the speed of the sensor 7 is lowered. COPYRIGHT: (C)2010,JPO&INPIT

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