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1. 发明专利

JP2014177329A Image formation apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2014177329A
公开(公告)日：2014-09-25
申请号：JP2013052455
申请日：2013-03-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MORIWAKI YUTA , ITO YOICHI , KATO TOMOKI , SAITO SUNAO , NODA KOJI
IPC分类号： B65H31/34 , B65H31/26
摘要： PROBLEM TO BE SOLVED: To make a spiral form guide member compact when not used.SOLUTION: A paper discharge tray 7 has spiral form guide members 71, 71, guiding an end of a form 10 in a direction orthogonal to its discharge direction, arranged, and the spiral form guide members 71 have extendable coil members 72, and are fitted to a top plate 73 fixed to a shaft part 75 and a bottom plate part 74 fitted rotatably to the shaft part 75 respectively to be held by the shaft part 75 in an extendable state, the spiral form guide members 71 being made compact when not used by contracting the coil members 72.
摘要翻译：要解决的问题：在不使用时使螺旋形导向件紧凑。解决方案：排纸托盘7具有螺旋形导向件71,71，它们沿与其排出方向正交的方向引导形式10的端部，螺旋形引导构件71具有可延伸的线圈构件72，并且被装配到固定到轴部分75的顶板73和可旋转地装配到轴部分75的底板部分74，以被轴部分75保持在可延伸状态下，螺旋形导向构件71在不通过线圈构件72的收缩而被使用时紧凑。

2. 发明专利

JP2014172235A Image formation device 有权
标题翻译：图像形成装置
公开(公告)号：JP2014172235A
公开(公告)日：2014-09-22
申请号：JP2013045043
申请日：2013-03-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOBAYASHI SOYUKI , NODA KOJI , KATO TOMOKI , KIKUKAWA FUMITAKA
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To provide an image formation device in which short supply is not caused when one of two liquid feed pumps is selectively driven by the same drive source.SOLUTION: When a displacement member is detected by a first sensor in a head tank 1 and a displacement member is detected by the first sensor also in a head tank 2, a difference between a remaining amount of ink of the head tank 1 and a remaining amount of ink of the head tank 2 is calculated. When the difference is less than or equal to a predetermined amount (threshold value), ink supply operation is started, for example, in the head tank 1 in which the displacement member is detected first before the displacement member reaches an ink consumption lower limit position.
摘要翻译：要解决的问题：提供一种图像形成装置，其中当两个液体供给泵中的一个被相同的驱动源选择性地驱动时不会产生短路。解决方案：当通过头箱中的第一传感器检测位移构件时 1和位移构件也由头箱2中的第一传感器检测，计算头箱1的墨的剩余量与头箱2的墨的剩余量之间的差。当差小于或等于预定量（阈值）时，例如在首先在位移构件到达墨消耗下限位置之前检测位移构件的头箱1中开始供墨操作。

3. 发明专利

JP2013188902A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2013188902A
公开(公告)日：2013-09-26
申请号：JP2012055456
申请日：2012-03-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KATO TOMOKI
IPC分类号： B41J2/175 , B41J2/18 , B41J2/185
CPC分类号： B41J2/16523 , B41J2/16532 , B41J2/19
摘要： PROBLEM TO BE SOLVED: To solve such a problem that bubble discharge performance is deteriorated by enlargement of a filter.SOLUTION: A filter chamber 110 is arranged between an ink chamber 106 and a recording head 1 in a head tank 101, a filter 109 filtering ink is arranged in the filter chamber 110, one wall surface of the filter chamber 110 is formed of a film member 107 being a flexible wall surface member, a cap holding spring 111 is arranged around the filter 109, a restoring force of the spring 111 looses to a suction pressure, the film member 107 comes into close contact with the filter 109, bubbles are pushed out like passing through the filter 109 when pushing the film member 107 in a direction spacing apart from the filter 109 by the cap holding spring 111 and carrying out suction discharge from a recording head 1.
摘要翻译：要解决的问题：为了解决通过放大过滤器而使气泡排出性能恶化的问题。解决方案：过滤室110布置在头箱101中的墨室106和记录头1之间，过滤器109过滤墨水布置在过滤室110中，过滤室110的一个壁面由作为柔性壁表面构件的膜构件107形成，盖保持弹簧111布置在过滤器109周围，弹簧111的恢复力失去吸入压力，膜构件107与过滤器109紧密接触，当通过盖保持弹簧111沿着与过滤器109间隔开的方向推动膜构件107时，气泡被挤出成像通过过滤器109 并从记录头1进行抽吸排出。

4. 发明专利

JP2013173343A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2013173343A
公开(公告)日：2013-09-05
申请号：JP2012195535
申请日：2012-09-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KATO TOMOKI , ITO YOICHI , NODA KOJI , ICHINOTO JUN
IPC分类号： B41J2/175
CPC分类号： B41J2/135 , B41J2/175
摘要： PROBLEM TO BE SOLVED: To solve such a problem that a large wasteful liquid consumption is needed for a bubble discharge.SOLUTION: A head tank 101 includes: a negative pressure geared valve 105 that opens when a negative pressure in the head tank 101 is larger than a given value; an air opening valve 111 through which an ink chamber 106 in the head tank 101 can lead to the outside air; an exhaust gas passage 112 that passes through the air opening valve 111 and the ink chamber 106 in the head tank 101; and a float valve 110 that closes the exhaust gas passage 112 in response to an ink amount in the ink chamber 106 in the head tank 101. When exhausting gas from the exhaust gas passage 112 by a suction device 130, the ink is force-fed from an ink cartridge 76 by driving a pressurizing pump 78.
摘要翻译：要解决的问题：为了解决气泡放电需要大量耗费的液体消耗的问题。解决方案：头箱101包括：负压齿轮阀105，其在头箱101中的负压较大时打开比给定值; 开口阀111，头箱101中的墨室106可以通过该打开阀111导向外部空气; 排气通道112，其通过头箱101中的开气阀111和墨室106; 以及浮动阀110，其响应于头箱101中的墨室106中的墨水量而关闭废气通道112.当通过抽吸装置130从排气通道112排出气体时，将强制供给墨通过驱动加压泵78从墨盒76。

5. 发明专利

JP2012051303A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2012051303A
公开(公告)日：2012-03-15
申请号：JP2010197230
申请日：2010-09-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUBARA MITSUYA , TANAKA AKIYOSHI , ITO YOICHI , KATO TOMOKI , KIKUKAWA FUMITAKA , PARK SOYOUNG , YAMANAKA KUNIHIRO , SUZUKI KAZUYOSHI , TAKANO KUNIKAZU , JO HONRIKU , TANAKA YUJI , ENDO SATOSHI
IPC分类号： B41J2/18 , B41J2/165 , B41J2/185
CPC分类号： B41J2/16508 , B41J2/16523 , B41J2/175 , B41J2/18 , B41J29/38 , B41J2002/16594
摘要： PROBLEM TO BE SOLVED: To solve problems wherein, when a negative pressure in a cap is reduced, air flows in a suction cap from a waste liquid tank side through a discharge path and air bubbles are generated in the cap, and color mixture or the like occurs.SOLUTION: The image forming apparatus includes: a recording head 24 having a nozzle face 124 on which nozzles that discharge liquid droplets are formed; the suction cap 92a for capping the nozzle face 124 of the recording head 24; the discharge path 191 connected to the suction cap 92a; a suction pump 96 provided in the discharge path 191 and formed of a tube pump; and an atmosphere opening port 193 for opening an airtight space, created when the nozzle face 124 is capped by the suction cap 92a, to an atmosphere. The atmosphere opening port 193 is communicated with the inside of the cap 92a at a position higher than a surface of liquid discharged into the suction cap 92a, and a check valve 196 for preventing a flow of liquid toward the cap 92a from the suction pump 96 is provided in the discharge path 191.
摘要翻译：解决问题的方案为了解决如下问题：当帽中的负压减小时，空气在废液罐侧通过排出路径从吸液帽流出，并且在盖中产生气泡，并且颜色混合物等发生。图像形成装置包括：具有喷嘴面124的记录头24，喷嘴液面形成有喷嘴; 用于封盖记录头24的喷嘴面124的吸附盖92a; 连接到吸入盖92a的排出路径191; 设置在排出路径191中并由管式泵构成的抽吸泵96; 以及当喷嘴面124被吸盘盖92a盖住时产生的气密空间的大气开放口193到大气。大气开放口193在帽92a的内部与排出到吸入帽92a的液体的表面相比高的位置连通，以及止回阀196，用于防止液体从吸引泵96向帽92a流动设置在排出路径191中。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2012040732A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2012040732A
公开(公告)日：2012-03-01
申请号：JP2010182709
申请日：2010-08-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KATO TOMOKI
IPC分类号： B41J2/175
CPC分类号： B41J2/175 , B41J2/17596 , B41J29/38
摘要： PROBLEM TO BE SOLVED: To solve the problem that a constitution for performing liquid supply which prevents insufficient refilling in regard to high speed, a long tube and high viscosity becomes complicated.SOLUTION: An image forming apparatus includes: a first passage 71 for supplying ink to a head 10; a second passage 70 communicating with an ink cartridge 76; a pressure unit 72 for pressing the ink in the second passage 70; and a control valve 81 for controlling the supply of ink from the second passage 70 to the first passage 71. The control valve 81 includes an expandable buffer chamber 60 and a valve member 85 to open and close the first passage 71 and the second passage 70 and movable by a flow of liquid from the buffer chamber 60 to the first passage 71 created by ejection of ink from the recording head 10 to communicate the second passage 70 with the first passage 71.
摘要翻译：解决的问题为了解决在高速度下防止填充不充分的液体供给的结构，长管和高粘度变得复杂的问题。解决方案：图像形成装置包括：用于向头10供应墨水的第一通道71; 与墨盒76连通的第二通道70; 用于按压第二通道70中的墨的压力单元72; 以及用于控制从第二通道70向第一通道71供应墨水的控制阀81.控制阀81包括可膨胀缓冲室60和用于打开和关闭第一通道71和第二通道70的阀构件85 并且可以通过液体从缓冲室60移动到通过从记录头10喷射墨而产生的第一通道71，以将第二通道70与第一通道71连通。（C）2012，JPO＆INPIT

7. 发明专利

JP2011116089A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2011116089A
公开(公告)日：2011-06-16
申请号：JP2009278001
申请日：2009-12-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KATO TOMOKI , TOKUNO TOSHIRO , ICHINOTO JUN , KIKUKAWA FUMITAKA
IPC分类号： B41J2/175
CPC分类号： B41J2/17509 , B41J2/1652 , B41J2/17556 , B41J2/17596
摘要： PROBLEM TO BE SOLVED: To overcome such problem that it is difficult to maintain a stable negative pressure with a simple constitution and to make a lack of refill not produced in the case of making the speed higher, and making the tube longer and making the ink viscosity higher, and the discharging of bubble and foreign substance is not sufficient in a maintenance and recovery operation. SOLUTION: An image forming apparatus includes a first channel 71 for feeding an ink to a recording head 10, a second channel 60 communicating with an ink cartridge 76, a channel resistance adjustable unit 83 with which the channel resistance changes according to the flow rate of the liquid flowing in the first channel 71 and a third channel 61 which has a pump 78 communicating with the second channel 60 and the channel resistance adjustable unit 83. When a liquid droplet is discharged from a nozzle, the ink is fed to the recording head 10 from the ink cartridge 76 with the pump 78 in such condition that the recording head 10 and the ink cartridge 76 are communicated through the channel resistance adjustable unit 83, and the first channel 71 side is blocked with a sealing rubber 68 of a valve body 88 at recovery operation. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题为了克服这样的问题，难以以简单的结构保持稳定的负压，并且在使速度更高的情况下不会产生不产生的再填充，并且使管更长，使得墨水粘度更高，并且在维护和恢复操作中气泡和异物的排出不足。解决方案：图像形成装置包括用于将墨水供给到记录头10的第一通道71，与墨盒76连通的第二通道60，通道电阻可调单元83，通道电阻根据在第一通道71中流动的液体的流量和具有与第二通道60连通的泵78和通道阻力可调单元83的第三通道61。当液滴从喷嘴排出时，将墨送入来自具有泵78的墨盒76的记录头10在记录头10和墨盒76通过通道阻力可调单元83连通的状态下，并且第一通道71侧被密封橡胶68阻挡在恢复操作时的阀体88。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2011051148A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2011051148A
公开(公告)日：2011-03-17
申请号：JP2009200110
申请日：2009-08-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KIKUKAWA FUMITAKA , KATO TOMOKI , TOKUNO TOSHIRO , AKAISHI NOBUYUKI , ICHINOTO JUN
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To solve the following problem: it is difficult to prevent refile shortage for high speed, a long tube and high viscosity of ink while keeping a stable negative pressure with a simple structure.
SOLUTION: The image forming apparatus has an ink cartridge 76 for storing ink, a first flow path 141 feeding ink to a recording head 10, a second flow path 42 communicated with the ink cartridge 76, and a third flow path 43 having a flow path resistance variable unit 83 having the flow path resistance varying by the flow rate of liquid flowing in the first flow path 141 and a pump 78 communicating the second flow path 42 with the flow path resistance variable unit 83. When ejecting liquid droplets from a nozzle, ink is sent to the recording head 10 from the ink cartridge 76 by the pump 78 in a state in which the recording head 10 is communicated with the ink cartridge 76 via the flow path resistance variable unit 83, and the throttle amount of the flow path resistance variable unit 83 varies according to the movement of a valve element 88 to the first flow path side.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了解决以下问题：难以以简单的结构保持稳定的负压，高速，长管和油墨的高粘度来防止反复不足。解决方案：图像形成装置具有用于存储墨水的墨盒76，将墨水供给到记录头10的第一流路141，与墨盒76连通的第二流路42和具有与墨盒76连通的第三流路43，流路阻力可变单元83，其具有由流过第一流路141的液体的流量变化的流路阻力和与第二流路42连通的泵78与流路阻力可变单元83.当将液滴从在记录头10经由流路阻力可变单元83与墨盒76连通的状态下，墨水通过泵78从墨盒76被送到记录头10，流路阻力可变单元83根据阀元件88相对于第一流路侧的移动而变化。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2010280188A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2010280188A
公开(公告)日：2010-12-16
申请号：JP2009136762
申请日：2009-06-06
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KIKUKAWA FUMITAKA , KATO TOMOKI , TOKUNO TOSHIRO , AKAISHI NOBUYUKI , ICHINOTO JUN
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To solve such the problem that it is difficult to keep a stable negative pressure with a simple configuration and to prevent insufficiency of refilling in the case of higher-speed operation, longer tube for ink supply and higher viscosity of the ink. SOLUTION: An image forming apparatus includes: a first flow path 41 for supplying the ink to a recording head 10; a second flow path 42 which communicates with an ink cartridge 76; and a third flow path 43 which has a flow path resistance variable unit 83 for making the first flow path 41 communicate with the second flow path 42 and has a pump 78 for making the second flow path 42 communicate with a flow path resistance variable unit 82, wherein, when droplets are discharged, the ink is fed from the ink cartridge 76 to the recording head 10 by the pump 78 in a state that the recording head 10 communicates with the ink cartridge 76 via the flow path resistance variable unit 83, an inclined surface 188 is formed on the valve body 88 of the flow path resistance variable unit 83, and air bubbles 141 on the inner part are discharged through through-holes 84 by virtue of contact with the inclined surface 187 of a pipe member 87. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题为了解决这样的问题，难以以简单的结构保持稳定的负压，并且在高速操作的情况下防止补充不足的问题，用于供墨的更长的管和更高的粘度的墨水。解决方案：图像形成装置包括：用于将墨水供应到记录头10的第一流路41; 与墨盒76连通的第二流路42; 以及第三流路43，其具有用于使第一流路41与第二流路42连通的流路阻力可变单元83，并具有用于使第二流路42与流路阻力可变单元82连通的泵78 其中，当液滴被排出时，墨水通过泵78以记录头10经由流路阻力可变单元83与墨盒76连通的状态从墨盒76供给至记录头10，倾斜表面188形成在流路阻力可变单元83的阀体88上，并且通过与管构件87的倾斜表面187接触，通过通孔84将内部的气泡141排出。 P>版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2010264728A Recording agent storage container and image forming apparatus 有权
标题翻译：记录代理存储容器和图像形成装置
公开(公告)号：JP2010264728A
公开(公告)日：2010-11-25
申请号：JP2009120365
申请日：2009-05-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKEUCHI SHOTARO , TOKUNO TOSHIRO , KATO TOMOKI , SAKAUCHI AKIKO , KUSUNOKI MASAMUNE , KUWATA MASAHIRO , SO IKO , HAYAKAWA NAOSHI
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To solve the problem that a configuration for detecting an ink residual amount in an ink bag is complicated.
SOLUTION: The ink cartridge 1 is constituted so that an ink pack 2 is housed in a cartridge case 3. An ink bag 11 is a deformable bag member. A supply port 13 for receiving an ink absorbing member of an image forming device body side is fixed, On opposing sidewall surfaces 11a and 11b of the ink bag 11, opposing electrodes 15A1 and 15B1, opposing electrodes 15A2 and 15B2, and opposing electrodes 15A3 and 15B3 are arranged respectively. The ink residual amount is detected based on contact states between the electrodes 15A1 and 15B1, between the electrodes 15A2 and 15B2, and between the electrodes 15A3 and 15B3.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了解决用于检测墨袋中的墨剩余量的结构复杂的问题。解决方案：墨盒1被构造成使得墨盒2容纳在盒壳体3中。墨水袋11是可变形袋构件。用于接收图像形成装置主体侧的吸墨构件的供给口13固定在墨袋11的相对的侧壁面11a，11b上，相对的电极15A1和15B1，相对的电极15A2和15B2以及相对的电极15A3和 15B3分别布置。基于电极15A1和15B1之间，电极15A2和15B2之间以及电极15A3和15B3之间的接触状态来检测墨水剩余量。版权所有（C）2011，JPO＆INPIT

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