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公开(公告)号：US20230126638A1
公开(公告)日：2023-04-27
申请号：US18049196
申请日：2022-10-24
发明人： Naoto Tokuma
摘要： An image forming apparatus includes a transfer unit forming a transfer nip portion, a fixing unit forming a fixing nip portion, and first and second belt suction conveyance units to suck a sheet onto a first belt and a second belt, respectively. The fixing nip portion is arranged at a position above the transfer nip portion. In a sheet conveyance direction, an upstream end portion of the first belt in the first belt suction conveyance unit is provided below the transfer nip portion, a downstream end portion of the first belt is provided above an upstream end portion of the second belt in the second belt suction conveyance unit, and a downstream end portion of the second belt is provided below the fixing nip portion. The first and second belts are inclined from a lower position to an upper position from upstream to downstream in the sheet conveyance direction.
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公开(公告)号：US11496641B2
公开(公告)日：2022-11-08
申请号：US17328044
申请日：2021-05-24
发明人： Naoto Tokuma , Eikou Mori , Akito Sekigawa
摘要： An image reading apparatus connectable to an image forming apparatus includes a feeding roller pair configured to nip and feed a sheet discharged from the image forming apparatus, a contact image sensor configured to read an image on a first surface of the sheet fed by the feeding roller pair, a light-transmissive plate provided opposed to the contact image sensor and having a light-transmission property, a first roller opposing the light-transmissive plate with a gap therebetween on a side opposite from the contact image sensor with respect to the light-transmissive plat, and a second roller positioned upstream of the first roller with respect to a sheet feeding direction and opposing the light-transmissive plate with a gap therebetween on the same side as the first roller.
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公开(公告)号：US20200089150A1
公开(公告)日：2020-03-19
申请号：US16539036
申请日：2019-08-13
发明人： Naoto Tokuma , Kenichi Hirota
摘要： A measurement apparatus includes a first conveyance path, a second conveyance path, a measuring portion, a third conveyance path and a sheet stacking portion. A sheet discharged out of an image forming apparatus is conveyed toward a downstream apparatus through the first conveyance path. The second conveyance path is branched from the first conveyance path, extended below the first conveyance path, and merged with the first conveyance path. The measuring portion is disposed on the second conveyance path. The third conveyance path is provided above the first conveyance path and is configured to convey the sheet from which a test image has been measured by the measuring portion in the second conveyance path. The sheet stacking portion is provided above the first conveyance path, and the sheet discharged out of the third conveyance path is stacked on the sheet stacking portion.
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公开(公告)号：US10294059B2
公开(公告)日：2019-05-21
申请号：US15176575
申请日：2016-06-08
发明人： Naoto Tokuma
摘要： An image forming apparatus includes an image forming unit forming images on a first sheet and a second sheet having a higher stiffness than the first sheet, a discharge rotary member pair, and a sheet supporting unit to support the first and second sheets discharged through the discharge rotary member pair. In addition, an abutment surface abuts against upstream ends of the first and second sheets supported on the sheet supporting unit, and an elevation unit moves the sheet supporting unit up and down. A control unit, in a state where no sheet is supported on the sheet supporting unit, executes a first discharge mode of controlling the elevation unit to position the sheet supporting unit at a first position before the discharge rotary member pair starts discharging the first sheet, and a second discharge mode of controlling the elevation unit to position the sheet supporting unit at a second position lower than the first position.
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公开(公告)号：US20180155146A1
公开(公告)日：2018-06-07
申请号：US15878637
申请日：2018-01-24
发明人： Naoto Tokuma
CPC分类号： B65H29/246 , B65H29/14 , B65H29/245 , B65H31/10 , B65H31/38 , B65H43/00 , B65H2301/4461 , B65H2404/14 , B65H2406/121 , B65H2406/122 , B65H2511/22 , B65H2513/53 , B65H2515/112 , B65H2515/212 , B65H2557/242 , B65H2801/06 , B65H2220/01 , B65H2220/02
摘要： A sheet stacking apparatus includes a discharging portion including a nip portion nipping and conveying a sheet, a stacking portion on which the sheet discharged by the discharging portion is stacked, an air blowing unit configured to blow air toward a lower face of the sheet being discharged by the discharging portion, and an air volume control portion configured to control the air blowing unit such that a volume of the air blown by the air blowing unit is switched from a first air volume to a second air volume which is smaller than the first air volume while the nip portion of the discharging portion is nipping and conveying the sheet to set the volume of the air to the second air volume in a case where a trailing end of the sheet discharged by the discharging portion passes through the nip portion.
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公开(公告)号：US09932194B2
公开(公告)日：2018-04-03
申请号：US15219517
申请日：2016-07-26
发明人： Naoto Tokuma
CPC分类号： B65H31/10 , B65H29/14 , B65H29/68 , B65H31/18 , B65H31/3027 , B65H43/00 , B65H43/08 , B65H2301/4212 , B65H2301/4213 , B65H2404/1442 , B65H2404/1521 , B65H2511/10 , B65H2511/152 , B65H2511/30 , B65H2511/51 , B65H2511/515 , B65H2513/10 , B65H2513/40 , B65H2513/512 , B65H2553/412 , B65H2701/182 , B65H2701/18292 , B65H2801/27 , B65H2220/01 , B65H2220/11 , B65H2220/02 , B65H2220/03
摘要： A sheet discharge apparatus includes a sheet stacking portion on which a sheet discharged by a discharging portion is stacked, and a control portion configured to control a moving unit such that a height position of an uppermost sheet stacked on the sheet stacking portion becomes a first height position. In a case where a sheet detection portion detects that the height position of the uppermost sheet is above a second height position, the control portion sets a sheet discharge speed of the discharging portion to a first sheet discharge speed. In a case where the sheet detection portion detects that the height position of the uppermost sheet becomes lower than the second height position, the control portion controls the sheet discharge speed to be a second sheet discharge speed faster than the first sheet discharge speed.
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公开(公告)号：US09033330B2
公开(公告)日：2015-05-19
申请号：US13709407
申请日：2012-12-10
发明人： Naoto Tokuma
IPC分类号： B65H37/04 , B65H29/00 , B65H31/02 , B65H31/20 , B65H31/36 , B65H31/38 , B65H39/06 , B42C1/12 , G03G15/00 , B65H5/26 , B65H7/02 , B42B4/00
CPC分类号： B65H29/00 , B42B4/00 , B42C1/12 , B65H5/26 , B65H7/02 , B65H31/02 , B65H31/20 , B65H31/36 , B65H31/38 , B65H39/06 , B65H2301/4212 , B65H2301/4213 , B65H2408/1222 , B65H2511/51 , B65H2513/50 , B65H2513/512 , B65H2601/2525 , B65H2701/18292 , B65H2801/27 , G03G15/6552 , B65H2220/01 , B65H2220/02 , B65H2220/11 , B65H2220/03
摘要： A first discharging portion that discharges a sheet received from one of image forming apparatus and a second discharging portion discharges a sheet received from another image forming apparatus are disposed opposite each other to stack the sheets discharged in a common processing tray. A controller controls the first and second discharging portions when the sheets are continuously discharged by the first and second discharging portions, controls a timing when the sheets are discharged by the first discharging portion and the second discharging portion to the common processing tray such that a leading edge of the sheet discharged from one of the discharging portions abuts on a sheet surface in the downstream of a discharging direction below a leading edge of the sheet discharged from the other discharging portion.
摘要翻译： 排出从图像形成装置中的一个接收的片材和第二放电部分的第一放电部分排出从另一成像装置接收的片材彼此相对地布置以将排出的片材堆叠在共同的处理托盘中。 当纸张被第一和第二排出部分连续排出时，控制器控制第一和第二排出部分，控制纸张被第一排出部分和第二排出部分排出到公共处理托盘的定时， 从一个排出部排出的纸张的边缘在从另一个排出部排出的纸张的前端下方的排出方向的下游的纸张表面抵接。
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公开(公告)号：US20130285320A1
公开(公告)日：2013-10-31
申请号：US13856589
申请日：2013-04-04
发明人： Naoto Tokuma
IPC分类号： B65H29/00
CPC分类号： B65H29/00 , B65H31/10 , B65H31/36 , B65H2511/152 , B65H2511/20 , B65H2801/06 , B65H2801/27 , B65H2220/01 , B65H2220/02 , B65H2220/11
摘要： A finisher includes: a bundle discharge roller pair; a sheet stacking portion which has a lower stacking tray, an abutment member on which a sheet is abuttable, and a sheet stacking height detecting sensor detecting a height of the sheets on the abutment member side, the sheet stacking portion configured to stack the sheet while lowering the lower stacking tray in accordance with a detection result; tray paddles coming into contact with the discharged sheet in a direction from a top of the sheet, to bring the sheet into abutment on the abutment member; a stacking amount detecting portion detecting a stacking amount of the stacked sheet, and a finisher control portion performing control of reducing a relative distance between the tray paddles and the sheet stacked on the lower stacking tray at the time of transporting of the sheet along with increase in the stacking amount of the sheet.
摘要翻译： 整理器包括：排出辊对; 具有下部堆叠托盘的片材堆叠部分，可抵靠片材的抵接部件和检测抵靠部件侧的片材的高度的片材堆叠高度检测传感器，所述片材堆叠部件被构造成将片材堆叠在一起 根据检测结果降低下堆放托盘; 盘片从片材的顶部沿排出的片材接触，使得片材抵靠在抵接件上; 检测层叠片材的层叠量的层叠量检测部和整理器控制部，其执行控制，以在纸张传送时进行减小托盘叶片和堆叠在下堆叠托盘上的片材之间的相对距离，同时增加 在片材的堆积量中。
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公开(公告)号：US11606473B2
公开(公告)日：2023-03-14
申请号：US17326660
申请日：2021-05-21
发明人： Akito Sekigawa , Naoto Tokuma , Eikou Mori
摘要： An image reading apparatus includes an image reading sensor, a transparent plate, a guiding member, a first roller pair, and a second roller pair provided upstream of the first roller pair with respect to a sheet feeding direction. The first roller pair and the second roller pair are disposed so as to nip a sheet in each of nips of the first roller pair and the second roller pair when a leading end of the sheet enters between the guiding member and the transparent plate.
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10.发明授权公开(公告)号：US11501124B2
公开(公告)日：2022-11-15
申请号：US17320458
申请日：2021-05-14
发明人： Eikou Mori , Naoto Tokuma , Akito Sekigawa
摘要： A measuring device includes a first roller pair, a colorimetric unit, a second roller pair, a third roller pair, a motor, and a torque limiter. The third roller pair is driven at a first speed before a trailing end of the sheet with respect to a sheet feeding direction passes through the first roller pair and is driven at a second speed higher than the first speed after the trailing end of the sheet passes through the first roller pair. The first speed is set so as to be equal to the peripheral speed of the first roller pair. The second speed is set so as to be equal to a peripheral speed of the second roller pair in a state in which a slip of the torque limiter is not caused.
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