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1. 发明授权

US09091967B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09091967B2
公开(公告)日：2015-07-28
申请号：US14371527
申请日：2013-01-09
申请人： SHARP KABUSHIKI KAISHA
发明人： Masashi Hirai , Masaki Saka , Toshiki Takiguchi
IPC分类号： G03G15/01 , G03G15/16
CPC分类号： G03G15/1615 , G03G15/0136 , G03G2215/00143 , G03G2215/00151 , G03G2215/00156
摘要： An image forming apparatus (100) is equipped with a plurality of photoreceptor drums (31A to 31D), an intermediate transfer belt (41), a separating and contacting mechanisms (20), a tension roller (44), a meandering correction mechanism, and a controller. The separating and contacting mechanism (20) displaces the intermediate transfer belt (41). The meandering correction mechanism increases and decreases a biasing force applied to each of the opposite end portions of the tension roller (44) according to the amount of movement of the intermediate transfer belt (41) in the axial direction (94) of the tension roller (44). The controller, during a non-image forming period, at a predetermined timing during rotation of the intermediate transfer belt (41), executes a belt displacement process in which the intermediate transfer belt (41) is displaced from a predetermined reference position and then returned to the reference position.
摘要翻译：图像形成装置（100）装备有多个感光鼓（31A〜31D），中间转印带（41），分离接触机构（20），张力辊（44），曲折校正机构和控制器。分离和接触机构（20）使中间转印带（41）移位。曲折校正机构根据中间转印带（41）在张力辊（94）的轴向（94）上的移动量而增加和减少施加到张紧辊（44）的每个相对端部的偏置力（44）。控制器在非图像形成期间，在中间转印带（41）旋转期间的预定定时执行带位移处理，其中中间转印带（41）从预定的参考位置移位，然后返回参考位置。

2. 发明申请

US20130126314A1 BELT UNIT AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20130126314A1
公开(公告)日：2013-05-23
申请号：US13680594
申请日：2012-11-19
申请人： SHARP KABUSHIKI KAISHA
发明人： Fumito MIZOGUCHI , Masashi Hirai , Toshiki Takiguchi
IPC分类号： B65G15/46
CPC分类号： G03G15/16 , B65G15/30 , B65G15/46 , B65G23/04 , G03G15/1615 , G03G15/2053 , G03G2215/00151 , G03G2215/00168 , G03G2215/0132
摘要： A belt unit is provided with an endless belt, a driving roller, and a pair of guide ribs. The driving roller is disposed on an inner peripheral surface side of the endless belt and drives the endless belt. The pair of guide ribs is placed on each opposite widthwise end of the inner peripheral surface of the endless belt and contacts both end faces of the driving roller, thus preventing meandering of the endless belt. Additionally, the driving roller is equipped with a low friction region at both opposite lengthwise ends in a predetermined width and the low friction region is configured to have a friction coefficient that is lower than a friction coefficient of a region adjacent to the low friction region.

3. 发明申请

US20150153685A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20150153685A1
公开(公告)日：2015-06-04
申请号：US14371527
申请日：2013-01-09
申请人： SHARP KABUSHIKI KAISHA
发明人： Masashi Hirai , Masaki Saka , Toshiki Takiguchi
IPC分类号： G03G15/01
CPC分类号： G03G15/1615 , G03G15/0136 , G03G2215/00143 , G03G2215/00151 , G03G2215/00156
摘要： An image forming apparatus (100) is equipped with a plurality of photoreceptor drums (31A to 31D), an intermediate transfer belt (41), a separating and contacting mechanisms (20), a tension roller (44), a meandering correction mechanism, and a controller. The separating and contacting mechanism (20) displaces the intermediate transfer belt (41). The meandering correction mechanism increases and decreases a biasing force applied to each of the opposite end portions of the tension roller (44) according to the amount of movement of the intermediate transfer belt (41) in the axial direction (94) of the tension roller (44). The controller, during a non-image forming period, at a predetermined timing during rotation of the intermediate transfer belt (41), executes a belt displacement process in which the intermediate transfer belt (41) is displaced from a predetermined reference position and then returned to the reference position.
摘要翻译：图像形成装置（100）配备有多个感光鼓（31A〜31D），中间转印带（41），分离接触机构（20），张力辊（44），曲折校正机构和控制器。分离和接触机构（20）使中间转印带（41）移位。曲折校正机构根据中间转印带（41）在张力辊（94）的轴向（94）上的移动量而增加和减少施加到张紧辊（44）的每个相对端部的偏置力（44）。控制器在非图像形成期间，在中间转印带（41）旋转期间的预定定时执行带位移处理，其中中间转印带（41）从预定的参考位置移位，然后返回参考位置。

4. 发明授权

US08881891B2 Belt unit and image forming apparatus 有权
标题翻译：皮带单元和成像设备
公开(公告)号：US08881891B2
公开(公告)日：2014-11-11
申请号：US13680594
申请日：2012-11-19
申请人： Sharp Kabushiki Kaisha
发明人： Fumito Mizoguchi , Masashi Hirai , Toshiki Takiguchi
IPC分类号： B65G15/46 , G03G15/16
CPC分类号： G03G15/16 , B65G15/30 , B65G15/46 , B65G23/04 , G03G15/1615 , G03G15/2053 , G03G2215/00151 , G03G2215/00168 , G03G2215/0132
摘要： A belt unit is provided with an endless belt, a driving roller, and a pair of guide ribs. The driving roller is disposed on an inner peripheral surface side of the endless belt and drives the endless belt. The pair of guide ribs is placed on each opposite widthwise end of the inner peripheral surface of the endless belt and contacts both end faces of the driving roller, thus preventing meandering of the endless belt. Additionally, the driving roller is equipped with a low friction region at both opposite lengthwise ends in a predetermined width and the low friction region is configured to have a friction coefficient that is lower than a friction coefficient of a region adjacent to the low friction region.
摘要翻译：带单元设置有环形带，驱动辊和一对引导肋。驱动辊设置在环形带的内周面侧并驱动环形带。一对引导肋放置在环形带的内周面的相对的宽度方向两端，并且与驱动辊的两个端面接触，从而防止环形带的曲折。此外，驱动辊在预定宽度的两个相对的纵向端部处设置有低摩擦区域，并且低摩擦区域被配置为具有低于与低摩擦区域相邻的区域的摩擦系数的摩擦系数。

5. 发明授权

US09128420B2 Belt unit and image forming apparatus 有权
标题翻译：皮带单元和成像设备
公开(公告)号：US09128420B2
公开(公告)日：2015-09-08
申请号：US14513914
申请日：2014-10-14
申请人： Sharp Kabushiki Kaisha
发明人： Fumito Mizoguchi , Masashi Hirai , Toshiki Takiguchi
IPC分类号： B65G15/46 , B65G15/30 , G03G15/16 , B65G23/04 , G03G15/20
CPC分类号： G03G15/16 , B65G15/30 , B65G15/46 , B65G23/04 , G03G15/1615 , G03G15/2053 , G03G2215/00151 , G03G2215/00168 , G03G2215/0132
摘要： A belt unit is provided with an endless belt, a driving roller, and a pair of guide ribs. The driving roller is disposed on an inner peripheral surface side of the endless belt and drives the endless belt. The pair of guide ribs is placed on each opposite widthwise end of the inner peripheral surface of the endless belt and contacts both end faces of the driving roller, thus preventing meandering of the endless belt. Additionally, the driving roller is equipped with a low friction region at both opposite lengthwise ends in a predetermined width and the low friction region is configured to have a friction coefficient that is lower than a friction coefficient of a region adjacent to the low friction region.
摘要翻译：带单元设置有环形带，驱动辊和一对引导肋。驱动辊设置在环形带的内周面侧并驱动环形带。一对引导肋放置在环形带的内周面的相对的宽度方向两端，并且与驱动辊的两个端面接触，从而防止环形带的曲折。此外，驱动辊在预定宽度的两个相对的纵向端部处设置有低摩擦区域，并且低摩擦区域被配置为具有低于与低摩擦区域相邻的区域的摩擦系数的摩擦系数。

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