公开(公告)号：JP2010191217A

公开(公告)日：2010-09-02

申请号：JP2009035921

申请日：2009-02-18

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAGAWA TOSHIAKI ,  KAGEYAMA HIROYUKI

IPC: G03G15/20

CPC classification number: G03G15/5004 ,  G03G15/2039 ,  G03G2215/2016

Abstract: PROBLEM TO BE SOLVED: To prevent a warm-up time from being increased at the warm-up time, when temperature fluctuations in a heat generating element occur and to secure stable fixing performance, in a fixing device heating a toner image carried on a material to be fixed to a fixing temperature and fixing the toner image by a heating section that has the heat-generating element that generates heat and has positive temperature coefficient properties. SOLUTION: The fixing device 15 includes the heating section 20 that has a heat source including a ceramic heat-generating element 211 that generates the heat by electric power supply and has positive temperature coefficient properties. Then, in the heating section 20, an applied voltage value by a voltage variable power source 22 to the ceramic heat-generating element 211 is variably controlled by a control unit 23, such that an input power value in the ceramic heat-generating element 211 becomes substantially constant. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题为了防止预热时间在预热时间内增加，当发生发热元件的温度波动并确保稳定的定影性能时，在定影装置中加热携带的调色剂图像 在要固定到定影温度的材料上并通过具有产生热量的发热元件的加热部分固定调色剂图像并具有正温度系数特性。 解决方案：定影装置15包括具有热源的加热部分20，该热源包括通过电力供应产生热量的陶瓷发热元件211并具有正温度系数特性。 然后，在加热部20中，由电压可变电源22向陶瓷发热体211施加的电压值由控制部23可变地控制，陶瓷发热体211的输入功率值 变得基本恒定。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010169956A

公开(公告)日：2010-08-05

申请号：JP2009013165

申请日：2009-01-23

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAGAWA TOSHIAKI ,  MURAKAMI SUSUMU ,  HIRAI MASASHI ,  IDE ATSUSHI ,  MUKAI TAKASHI

IPC: G03G15/20

Abstract: PROBLEM TO BE SOLVED: To suppress occurrence of offset due to deteriorated releasing property of the fixing member caused by adhering of a substance scraped from an outside heating member with a cleaning member to a fixing member, in an outside heating type fixing device including the outside heating member contacted on the surface of the fixing member to heat the fixing member and the cleaning member contacted on the surface of the outside heating member to clean the surface of the outside heating member.
SOLUTION: The surface of a fixing roller 1 is electrified on the same polarity as a toner. Thus, even when the substance or the like scraped from an outside heating belt 3 with the cleaning member adheres on the fixing roller 1 to deteriorate releasing property, the fixing device suppresses occurrence of offset by electrostatic repulsive force between the surface of the fixing roller 1 and the toner.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了抑制由外部加热部件用清洁部件刮擦的物质粘附到固定部件而导致的由于固定部件的脱模性劣化的偏移，在外部加热型定影装置 包括在固定构件的表面上接触的外部加热构件，以加热与外部加热构件的表面接触的固定构件和清洁构件，以清洁外部加热构件的表面。 解决方案：定影辊1的表面以与调色剂相同的极性通电。 因此，即使当从清洁部件附着在外部加热带3上的物质等附着在定影辊1上而使剥离性劣化时，定影装置抑制定影辊1的表面之间的静电斥斥的偏移的发生 和调色剂。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010054747A

公开(公告)日：2010-03-11

申请号：JP2008218855

申请日：2008-08-27

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUKAI TAKASHI ,  KAGAWA TOSHIAKI ,  NAKAYAMA ATSUYOSHI

IPC: G03G15/20

CPC classification number: G03G15/5004 ,  G03G15/2039 ,  G03G2215/2019

Abstract: PROBLEM TO BE SOLVED: To provide a fixing device, for reducing overshoot of surface temperature of a heating means without prolonging warming-up, an image forming apparatus provided with the same, a temperature control program, and a recording medium recording the temperature control program. SOLUTION: In a standby mode, a halogen lamp 54 that is an internal heat source is controlled to stop its operation after the surface temperature of a heating roller 50 reaches a predetermined temperature equal to or lower than a target temperature, or the operation time of the halogen lamp 54 reaches a predetermined time. According to this, since the heating roller 50 stops heating at a temperature lower than the target temperature, the overshoot of surface temperature of the heating roller 50 is reduced. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种用于减少加热装置的表面温度的过冲而不延长预热的定影装置，设置有加热装置的图像形成装置，温度控制程序和记录介质 温度控制程序。 解决方案：在待机模式中，控制作为内部热源的卤素灯54，在加热辊50的表面温度达到等于或低于目标温度的预定温度之后停止其操作，或者 卤素灯54的操作时间达到预定时间。 据此，由于加热辊50在比目标温度低的温度下停止加热，所以加热辊50的表面温度过冲减小。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009258517A

公开(公告)日：2009-11-05

申请号：JP2008109605

申请日：2008-04-18

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAGAWA TOSHIAKI ,  KAGEYAMA HIROYUKI

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/2029 ,  G03G2215/2038 ,  G03G2215/2041

Abstract: PROBLEM TO BE SOLVED: To provide a fixing device for suppressing abnormal temperature rise at a paper non-passing portion with simple configuration, and reducing a warm-up time and achieving a high-speed operation, and to provide an image forming apparatus including the fixing device.
SOLUTION: The fixing device 15 includes: a fixing belt 113 for fixing an unfixed toner image onto a recording medium; a planer heating member 203 for heating the fixing belt 113; and a pressure roller 15b. The heating member 203 includes: a ceramic heat generating element 200 having a PTC characteristic; and a high-thermal-conductive heat diffusion member 166. The fixing belt 113 is formed in an endless shape and is suspended on at least the high-thermal-conductive heat diffusion member 166, thereby to be heated. The ceramic heat generating element 100 comes in contact with the fixing belt 113 over the full width thereof across the high-thermal-conductive heat diffusion member 166. The high-thermal-conductive heat diffusion member 166 comes into contact with the fixing belt 113 over the full width thereof and diffuses heat generated by the heat generating element 200 in the traveling direction of the fixing belt 113. The image forming apparatus includes the fixing device 15.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：提供一种用于以简单的结构来抑制不通过纸张的异常温度的定影装置，并且减少预热时间并实现高速操作，并且提供图像形成 包括定影装置的装置。 解决方案：定影装置15包括：用于将未定影的调色剂图像定影到记录介质上的定影带113; 用于加热定影带113的平面加热构件203; 和压力辊15b。 加热构件203包括：具有PTC特性的陶瓷发热元件200; 和高导热性扩散构件166.定影带113形成为环状，并悬挂在至少高导热性热扩散构件166上，从而被加热。 陶瓷发热元件100穿过高导热散热构件166与其整个宽度上的定影带113接触。高导热散热构件166与定影带113接触， 其全宽度并且在定影带113的行进方向上扩散由发热元件200产生的热量。图像形成装置包括定影装置15.版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009092887A

公开(公告)日：2009-04-30

申请号：JP2007262681

申请日：2007-10-05

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAGAWA TOSHIAKI

IPC: G03G15/20

CPC classification number: G03G15/2057 ,  G03G2215/2019

Abstract: PROBLEM TO BE SOLVED: To provide an energy-efficient fixing apparatus that excels in fixing roller's temperature follow-up capability, fixability and paper conveyance capability even at higher rates of process speed, and further to provide an image forming apparatus having the same. SOLUTION: The fixing apparatus includes: a pair of fixing members composed of a fixing roller 101 and a pressure roller 102 that make pressure-contact with each other; an external heating belt 103 for heating a surface of the fixing roller 101 externally; and first and second external heating rollers 104 and 105 having a heat source, for allowing the external heating belt 103 to be laid in a tensioned state. A sum of rigidity of the first and the second external heating rollers 104 and 105 is greater than or equal to the rigidity of the fixing roller 101. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：即使在更高的处理速度下，提供一种能够有效地定影辊的温度跟踪能力，定影性和纸张传送能力的节能定影装置，并且还提供一种图像形成装置，其具有 相同。 解决方案：定影装置包括：一对固定构件，其由定影辊101和压力辊102构成，彼此进行压力接触; 外部加热带103，用于在外部加热定影辊101的表面; 以及具有热源的第一和第二外部加热辊104和105，用于允许外部加热带103处于张紧状态。 第一和第二外部加热辊104和105的刚度之和大于或等于定影辊101的刚性。版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008250289A

公开(公告)日：2008-10-16

申请号：JP2007284536

申请日：2007-10-31

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： DOSHODA HIROSHI ,  ADACHI KATSUMI ,  KAGAWA TOSHIAKI

IPC: G03G21/00

Abstract: PROBLEM TO BE SOLVED: To provide a new ozone removal device which is different from an ozone decomposing filter or a heating source.
SOLUTION: A color laser printer 100 is provided with a first exhaust duct 21 for exhausting ozone generated by a charging units 103a to 103d, etc., inside a housing 20 to the outside of the housing 20. The first exhaust duct 21 is therein provided with a catalytic honeycomb filter 205 for ozone gas treatment and an ion emitting unit 203 for emitting negative ions into an atmosphere. Most of an ozone gas component in air flowing in the first exhaust duct 21 is decomposed and/or absorbed by the catalytic honeycomb filter 205 for ozone gas treatment. Furthermore, the residual ozone gas component is decomposed by the negative ions generated by the ion emitting unit 203.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供与臭氧分解过滤器或加热源不同的新的臭氧去除装置。 解决方案：彩色激光打印机100设置有第一排气管道21，用于将壳体20内的充电单元103a至103d等产生的臭氧排出到壳体20的外部。第一排气管道21 在其中设置有用于臭氧气体处理的催化蜂窝过滤器205和用于将负离子排放到大气中的离子发射单元203。 在第一排气管21中流动的空气中的大部分臭氧气体成分被用于臭氧气体处理的催化蜂窝过滤器205分解和/或吸收。 此外，残留的臭氧气体成分由离子发射单元203产生的负离子分解。版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008191342A

公开(公告)日：2008-08-21

申请号：JP2007024786

申请日：2007-02-02

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAGAWA TOSHIAKI

IPC: G03G15/20 ,  F16C13/00

CPC classification number: G03G15/2057

Abstract: PROBLEM TO BE SOLVED: To make a resin layer hard to peel off from an elastic layer in a fixing roller to be applied to an image forming apparatus of a high process speed. SOLUTION: The fixing roller includes: a metal core; the elastic layer that is formed on the circumference of the metal core and is made of an elastic material; and the resin layer which is formed on the circumference of the elastic layer and made of fluorinated resin. In this configuration, the thickness of the resin layer is set to be ≥40 μm, When a limit peeling temperature obtained by performing a predetermined peeling test is defined as Tr(°C) and the temperature of the fixing roller when fixing processing is executed is defined as Tc (°C), Tr≥Tc+60 or Tr≥Tc+75 is satisfied. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：使树脂层难以从定影辊中的弹性层剥离，以施加到处理速度高的图像形成装置。 解决方案：定影辊包括：金属芯; 所述弹性层形成在所述金属芯的圆周上并且由弹性材料制成; 以及形成在弹性层的周围并由氟化树脂制成的树脂层。 在该结构中，将树脂层的厚度设定为≥40μm，当通过进行规定的剥离试验得到的极限剥离温度定义为Tr（℃），并且在进行定影处理时定影辊的温度 定义为Tc（℃），Tr≥Tc+ 60或Tr≥Tc+ 75。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007298773A

公开(公告)日：2007-11-15

申请号：JP2006127057

申请日：2006-04-28

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： SHINKAWA KOJI ,  KAGAWA TOSHIAKI ,  SAKUWA TORU

IPC: G03G21/10 ,  G03G15/00 ,  G03G15/02 ,  G03G21/00

Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of solving a problem on the deterioration of image quality caused by oozing-out of contaminant from an electrifying roller by coping therewith on the image forming apparatus side, and coping therewith by using an existent member without providing a large-scaled device which can not evade cost rise. SOLUTION: An environment monitor part 35 uses a temperature and humidity detection sensor 33 detecting temperature and humidity to monitor environment in the apparatus, a stopping time monitor part 34 monitors time when the rotation of the photoreceptor is stopped, and a number-of-rotating times calculation part 32 calculates the number of rotating times necessary for removing substance oozing out from the electrifying roller 2 and adhering to the photoreceptor by rotating the photoreceptor is calculated based on monitored results by both monitor parts 34 and 35. A photoreceptor driving control part 31 rotates the photoreceptor for the calculated number of rotating times before image forming. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 解决的问题：提供一种图像形成装置，其能够解决由图像形成装置侧通过与充电辊渗出的污染物的渗出引起的图像质量的劣化的问题，并且通过 使用现有的成员，而不提供不能避免成本上升的大规模设备。 环境监测部35使用检测温度和湿度的温度和湿度检测传感器33来监视装置中的环境，停止时间监视部分34监视感光体的旋转停止时的时间， 旋转时间计算部32基于监视部34和35的监视结果，计算从充电辊2除去渗出物质并通过旋转感光体粘附于感光体所需的旋转次数。 在图像形成之前，控制部件31使感光体旋转计算出的旋转次数。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007298771A

公开(公告)日：2007-11-15

申请号：JP2006127051

申请日：2006-04-28

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： SAKUWA TORU ,  SHINKAWA KOJI ,  KAGAWA TOSHIAKI

IPC: G03G15/02

CPC classification number: G03G15/0216 ,  G03G15/5033

Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of scratches on a photoreceptor and an electrifying roller, regarding an image forming apparatus wherein the photoreceptor that is rotated at high speed is electrified by the electrifying roller.
SOLUTION: The photoreceptor 3 provided in an electrophotographic image forming apparatus is rotationally driven at the high speed so that the circumferential velocity may be ≥225 mm/second. The electrifying roller 21 is driven-rotated in contact with the photoreceptor 3, so as to electrify the photoreceptor 3. In this case, the surface pressure M at the contact part of the photoreceptor 3 with the electrifying roller 21 is set to be >0.8 g/mm
2 and ≤3.5 g/mm
2 .
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了防止在感光体和带电辊上产生划痕，关于其中高速旋转的感光体由充电辊带电的图像形成装置。 解决方案：设置在电子照相图像形成装置中的感光体3以高速旋转驱动，使得圆周速度可以≥225mm/秒。 带电辊21与感光体3接触地被驱动旋转，从而使感光体3通电。在这种情况下，感光体3与充电辊21的接触部分的表面压力M设定为> 0.8 g / mm 2 和≤3.5g / mm 2 。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007248655A

公开(公告)日：2007-09-27

申请号：JP2006069982

申请日：2006-03-14

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： YAMANA SHINJI ,  ASAKURA KENJI ,  KAGAWA TOSHIAKI

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/2016 ,  G03G2215/2019

Abstract: PROBLEM TO BE SOLVED: To achieve an external belt heating type fixing device in which thermal damage to an endless belt and the surface of a fixing member and image irregularities are restrained.
SOLUTION: The fixing device 40 is equipped with: a fixing roller 60 and a pressure roller 70 holding and conveying recording paper P so that unfixed toner on the recording paper P may be fixed on the recording paper P by heat and pressure; two supporting rollers 81a and 81b; the endless belt 83 laid across the supporting rollers 81a and 81b and also coming into contact with the surface of the fixing roller 60; and heater lamps 82a and 82b provided inside the supporting rollers 81a and 81b. When the heat capacity of the heater lamps 82a and 82b is defined as C1, the heat capacity of the supporting rollers 81a and 81b is defined as C2, and the heat capacity of the endless belt 83 at a part where it comes into contact with the supporting rollers 81a and 81b is defined as C3, they satisfy relation; (C2+C3)/C1≥2.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了实现对环形带的热损伤和定影构件的表面以及图像不规则性的外部带式加热型定影装置的实现。 解决方案：定影装置40配备有：定影辊60和压力辊70，其保持和传送记录纸P，使得记录纸P上的未定影调色剂可以通过热和压力固定在记录纸P上; 两个支承辊81a和81b; 环形带83横跨支撑辊81a和81b并且也与定影辊60的表面接触; 以及设置在支承辊81a，81b内的加热灯82a，82b。 当加热器灯82a和82b的热容量被定义为C1时，支撑辊81a和81b的热容量被定义为C2，并且环形带83在与其接触的部分处的热容量 支撑辊81a和81b被定义为C3，它们满足关系; （C2 + C3）/C1≥2。 版权所有（C）2007，JPO＆INPIT