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1. 发明专利

JP2014085573A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2014085573A
公开(公告)日：2014-05-12
申请号：JP2012235436
申请日：2012-10-25
申请人： Canon Inc , キヤノン株式会社
发明人： IWASAKI ATSUSHI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To improve energy saving performance without extending FPOT.SOLUTION: An image forming apparatus includes: an image forming part A for forming an image on a recording material; and a fixing part B having a rotatable and cylindrical fixing member 20, a heating body 16 for heating the fixing member, and a rotatable pressure member 22 for forming a nip part N together with the fixing member, and heating a recording material P having an image T formed thereon and conveyed by the nip part to fix an image to the recording material. The image forming apparatus supplies electric power to the heating body in a print-standby state, and executes fixing standby control mode for controlling the fixing member to be on standby at a predetermined control temperature. In the fixing standby control mode, the control temperature of the heating body is set to be lower when power consumption of the heating body in the fixing standby control mode is small than when it is large.
摘要翻译：要解决的问题：在不延长FPOT的情况下提高节能性能。图像形成装置包括：用于在记录材料上形成图像的图像形成部分A. 以及具有可旋转且圆筒形的固定构件20的固定部分B，用于加热固定构件的加热体16和用于与固定构件一起形成夹持部分N的可转动的压力构件22，以及加热具有图像T形成在其上并由夹持部分传送以将图像定影到记录材料。图像形成装置在打印备用状态下向加热体提供电力，并且执行用于控制定影构件在预定控制温度下待机的定影待机控制模式。在定影待机控制模式中，当定影待机控制模式中的加热体的功耗比小时，加热体的控制温度设定得较低。

2. 发明专利

JP2009145821A Pressing member, image heating apparatus and image forming apparatus 审中-公开
标题翻译：压力构件，图像加热装置和图像形成装置
公开(公告)号：JP2009145821A
公开(公告)日：2009-07-02
申请号：JP2007325788
申请日：2007-12-18
申请人： Canon Inc , キヤノン株式会社
发明人： SEKIHARA YUKO , HASHIMOTO NORIO , SAKAI HIROAKI , SAKAKIBARA HIROYUKI , IWASAKI ATSUSHI , KISHINO KAZUO , TAKAHASHI MASAAKI , MATSUNAKA KATSUHISA
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a pressing member for forming a nip section for holding and transporting recording material while heating the same by coming into contact with a heating member, the pressing member having excessive rising temperature reduced in an area where the recording material is not passed, having durability and transporting properties for the recording material improved.
SOLUTION: The pressing member 24 forms the nip section N for heating the recording material P while holding and transporting the same by coming into contact with the heating member 22. The pressing member 24 includes a metal core 24d, an elastic layer 24a provided on the metal core, a high temperature conducting elastic layer 24b provided on the elastic layer and with higher heat conductivity than the elastic layer. In addition, at least part of the high temperature conducting elastic layer is in contact with the metal core.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于形成用于保持和传送记录材料的夹持部分的加压部件，同时通过与加热部件接触来加热该夹持部分，在具有过高上升温度的挤压部件中，记录材料不通过，具有改善记录材料的耐久性和传送性能。解决方案：按压构件24形成用于加热记录材料P同时通过与加热构件22接触而保持和传送记录材料P的夹持区N.加压构件24包括金属芯24d，弹性层24a 设置在金属芯上，设置在弹性层上并具有比弹性层高的导热性的高温导电弹性层24b。此外，高温导电弹性层的至少一部分与金属芯接触。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2009031772A Pressure member and image heating apparatus with the pressure member 有权
标题翻译：压力部件和图像加热装置与压力部件
公开(公告)号：JP2009031772A
公开(公告)日：2009-02-12
申请号：JP2008162559
申请日：2008-06-20
申请人： Canon Inc , キヤノン株式会社
发明人： SAKAKIBARA HIROYUKI , HASHIMOTO NORIO , SAKAI HIROAKI , IWASAKI ATSUSHI , SEKIHARA YUKO , KISHINO KAZUO , TAKAHASHI MASAAKI , MATSUNAKA KATSUHISA
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide an image heating apparatus which can suppress temperature rise in a region where recording material does not pass, and to provide a pressure member which is used for the apparatus, stabilizes conveyability, has high durability, high thermal conductivity, and low hardness. SOLUTION: The pressure member includes: a core metal; an elastic layer containing filler, the elastic layer containing filler whose thermal conductivity λ y in the longitudinal direction orthogonal to a recording material conveyance direction is λ y ≥2.5W/(m.k), and whose ASKER-C hardness of the filler is not more than 60 degrees; and a solid rubber elastic layer whose thermal conductivity λ in a thickness direction is not less than 0.16 W/(m.k) and not more than 0.40 W/(m.k). The solid rubber elastic layer is formed on an outer periphery of the core metal and the elastic layer containing the filler is formed on the outer periphery of the solid rubber elastic layer. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以抑制记录材料不通过的区域中的温度升高的图像加热装置，并且提供用于该装置的压力构件，稳定输送性，具有高耐久性，高导热性和低硬度。解决方案：压力构件包括：芯金属; 在与记录材料输送方向正交的纵向的热导率λ y 的弹性层含有填料的弹性层为λ≥2.5W/（mk ），其填料的ASKER-C硬度不超过60度; 以及厚度方向的热导率λ为0.16W /（m·k）以上且0.40W /（m·k）以下的固体橡胶弹性层。固体橡胶弹性层形成在芯金属的外周上，并且在固体橡胶弹性层的外周上形成含有填料的弹性层。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2007298691A Fixing device and image forming apparatus 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2007298691A
公开(公告)日：2007-11-15
申请号：JP2006125869
申请日：2006-04-28
申请人： Canon Inc , キヤノン株式会社
发明人： MAEDA MASAFUMI , IWASAKI ATSUSHI , MAKIHIRA TOMOYUKI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To more surely perform jam processing of a heating nip section with a simple constitution without entailing a cost increase.
SOLUTION: Movable sections (pressure release levers 31a, 31b) which release the pressure contact state of the heating nip section N by a pressurization spring 36 are respectively disposed nearer an upstream side and downstream side of the sheet conveyance direction than the heating nip section N.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了更可靠地以简单的结构进行加热辊隙部的堵塞处理，而不需要增加成本。解决方案：通过加压弹簧36释放加热夹持部N的压力接触状态的移动部（压力释放杆31a，31b）分别设置在片材输送方向的上游侧和下游侧比加热（C）2008，JPO＆INPIT

5. 发明专利

JP2007199485A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2007199485A
公开(公告)日：2007-08-09
申请号：JP2006018964
申请日：2006-01-27
申请人： Canon Inc , キヤノン株式会社
发明人： IWASAKI ATSUSHI
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that can suppress wrinkling and improve a throughput as to a heated material whose length is relatively small as compared with the length of a heating body. SOLUTION: The image forming apparatus has a heating device 14 which heats the heated material P while clipping and conveying by a nip part N and a feeding device 19 which feeds the heated material to the heating device. Further, the image forming apparatus has a control means 71 of controlling heating of heating bodies 91a and 19b that the heating device has and timing of feeding of the heated material by the feeding device. The control means varies an illumination time ratio of a heating duty of a first heating body that the heating device has and a heating duty of a subordinate heating body generating heat subordinately to the first heating body according to the size of the heated material. Further, the control means determines the timing of feeding of the heated material by the feeding device according to a temperature distribution along the lengths of the first heating body and subordinate heating body orthogonal to the heated material conveying direction. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种能够抑制皱纹的图像形成装置，并且提高与加热体的长度相比长度相对较小的加热材料的生产量。解决方案：图像形成装置具有加热装置14，加热装置14通过夹持部分N和将加热材料供给到加热装置的进给装置19进行夹持和输送来加热加热的材料P. 此外，图像形成装置具有控制装置71，该控制装置71控制加热装置91a和19b的加热，以及由加料装置供给被加热材料的正时。控制装置根据加热材料的尺寸，改变加热装置所具有的第一加热体的加热功率和从属加热体的加热负荷与第一加热体产生热量的照明时间比。此外，控制装置根据沿着与被加热材料输送方向正交的第一加热体和次级加热体的长度的温度分布，确定供给装置供给加热材料的时间。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2007047405A Fixing device and image forming apparatus 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：JP2007047405A
公开(公告)日：2007-02-22
申请号：JP2005231000
申请日：2005-08-09
申请人： Canon Inc , キヤノン株式会社
发明人： SAKAI HIROAKI , TAKAMI HIROSHI , IWASAKI ATSUSHI
IPC分类号： G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a fixing device and an image forming apparatus having superior quality by improving the flicker level, even if the printing speed is increased.
SOLUTION: In the image forming apparatus, having a thermal pressure fixing device provided with a plurality of heater and independent driving circuits, at least one heater is driven with prescribed power, and the other heaters perform temperature adjustment control. The current flowing through the heaters is varied in only the heaters used for the temperature control, thereby improving flickers.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使提高打印速度，通过提高闪烁水平来提供具有优良品质的定影装置和图像形成装置。解决方案：在具有设置有多个加热器和独立驱动电路的热压固定装置的图像形成装置中，至少一个加热器以规定的功率驱动，另一个加热器进行温度调节控制。流过加热器的电流仅在用于温度控制的加热器中变化，从而改善闪烁。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006071894A Fixing device 有权
标题翻译：固定装置
公开(公告)号：JP2006071894A
公开(公告)日：2006-03-16
申请号：JP2004254282
申请日：2004-09-01
申请人： Canon Inc , キヤノン株式会社
发明人： IWASAKI ATSUSHI , SAKAI HIROAKI , KATO AKIRA , MAKIHIRA TOMOYUKI , MAEDA MASAFUMI
IPC分类号： G03G15/20
CPC分类号： G03G15/2042
摘要： PROBLEM TO BE SOLVED: To prevent cracking of a heated body and improve in fixing property when a film heat type fixing device runs away, when small-sized paper is passed, etc.
SOLUTION: The fixing device is characterized in that the heated body 73 has a resistance heating element formation region Wh where a resistance heating element 73b is formed on one surface side of a ceramic base material 73a; a heated body support 71 has a heated body seating face region 71a where the heated body is supported in such a way that the heated body is caused to abut on a surface of a fixation nip N perpendicularly to the surface and clamped by the surface and the region 71a, wherein the heated body seating face region 71a has a resistance heating element formation part seating face region Wg which abuts on the heated body 73 to support it within a range wherein at least the resistance heating element formation region Wh is covered; and in the positional relationship in a recording material conveying direction A between the heating element formation region Wh, resistance heating element formation part seating face region Wg and fixation nip N, the resistance heating element formation region Wh is included in the inward sided of the resistance heating element formation part seating face region Wg and the resistance heating element formation part seating face region Wg is included in the inward side of the fixation nip Wn (Wh≤Wg≤Wn).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：当薄膜加热型固定装置脱落时，当小尺寸纸张通过时，为了防止加热体的开裂，并提高定影性。解决方案：定影装置的特征在于因为加热体73具有在陶瓷基材73a的一个表面侧形成电阻加热元件73b的电阻加热元件形成区Wh，加热体支撑件71具有加热体座面区域71a，加热体被支撑，使得被加热体与垂直于表面的表面紧固在固定压区N的表面上并被表面夹紧，区域71a，其中加热体座面区域71a具有电阻加热元件形成部分座面区域Wg，该电阻加热元件形成部分座面区域Wg抵接在加热体73上以将其支撑在至少电阻加热元件形成区域Wh被覆盖的范围内; 并且在加热元件形成区域Wh，电阻加热元件形成部分座面区域Wg和定影压区N之间的记录材料输送方向A的位置关系中，电阻加热元件形成区域Wh包括在电阻的内侧加热元件形成部件座面区域Wg和电阻加热元件形成部件座面区域Wg包括在定影辊隙Wn的内侧（Wh≤Wg≤Wn）中。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2006019159A Heater and image heating device 审中-公开
标题翻译：加热器和图像加热装置
公开(公告)号：JP2006019159A
公开(公告)日：2006-01-19
申请号：JP2004196469
申请日：2004-07-02
申请人： Canon Inc , キヤノン株式会社
发明人： MAKIHIRA TOMOYUKI , SAKAI HIROAKI , MAEDA MASAFUMI , IWASAKI ATSUSHI , TAKAMI HIROSHI , SAKAKIBARA HIROYUKI
IPC分类号： H05B3/10 , G03G15/20 , H05B3/00 , H05B3/16 , H05B3/20
摘要： PROBLEM TO BE SOLVED: To materialize high throughput for each kind of paper by suppressing the temperature rise of a paper non-passing part by changing the resistance value of a heater, and to satisfy fixing property in a paper passing region and prevention of defective images. SOLUTION: This heater has a substrate the longitudinal direction of which is perpendicular to the paper passing direction of a material to be heated, and resistance heating elements 31, 32 on the substrate, and heats a material to be heated. This heater is structured so as to include a region in which the resistance value of the resistance heating element becomes gradually small from a reference position to a longitudinal end part, and another region in which the rate of change of the resistance value is not uniform in the middle of the above region. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过改变加热器的电阻值来抑制纸张不通过部分的温度上升，并且满足纸张通过区域中的定影性能并且防止纸张通过区域中的定影性，从而实现各种纸张的高通量的缺陷图像。解决方案：该加热器的纵向方向垂直于待加热材料的纸张通过方向的基板，以及基板上的电阻加热元件31,32，并加热被加热材料。该加热器构成为包括电阻加热元件的电阻值从基准位置到纵向端部逐渐变小的区域，电阻值的变化率不均匀的区域在上述区域的中部。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2004302214A Image forming apparatus 有权
公开(公告)号：JP2004302214A
公开(公告)日：2004-10-28
申请号：JP2003096044
申请日：2003-03-31
申请人： Canon Inc , キヤノン株式会社
发明人： IWASAKI ATSUSHI
IPC分类号： G03G21/14 , G03G15/20
CPC分类号： G03G2215/00599
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of maximizing throughput without thermally damaging a fixing member. SOLUTION: A sub-thermistor temperature threshold Tth for switching the feed interval of small size paper is decided based on sub-thermistor initial temperature TaO (S1 to S3). A heating body is energized and heated (S4) and the feed of recording material is started (S5) at the feed interval such as the initial value F0 of the feed interval F = 4 seconds (15ppm). The number Cp of continuously passing paper is counted (S6). Every time the number Cp reaches a number-of-paper count threshold Cth, control to switch the threshold Tth from T(n) to T(n+1) is performed (S7 and S8). If the sub thermistor temperature Ta attained when the recording material passes through a fixing device exceeds the threshold Tth, control to switch the feed interval F is performed (S10 and S11). COPYRIGHT: (C)2005,JPO&NCIPI

10. 发明专利

JP2004045661A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2004045661A
公开(公告)日：2004-02-12
申请号：JP2002201865
申请日：2002-07-10
申请人： Canon Inc , キヤノン株式会社
发明人： IWASAKI ATSUSHI
IPC分类号： G03G21/14 , G03G15/02 , G03G15/04 , G03G15/043 , G03G15/14 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To make preventable a conveying failure and a jam. SOLUTION: In a case where the length of a recording material P calculated by a conveying length calculating section 31 is shorter than a distance required between transfer and fixing, the image forming apparatus sets the timing of the feed of a subsequent sheet so that the subsequent recording material P is not fed to a transfer nip N during a predetermined period t1 while a printing process is performed. At the same time, the apparatus form a distaticization section in such a manner that a bias applied to an electrifying roller 2 is switched to OV electrification control during a predetermined period t2 that is shorter than the time period t1 by only time that corresponds to a distance L1 between the transfer nip and the electrifying roller 2. Laser beam irradiation by an exposure device 3, development bias application to a developing device 4, and transfer bias application to a transfer device 5 are not performed during the period t2 after the destaticization section of the surface of a photosensitive drum 1 faces each image forming section after electrification control was switched. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：防止输送故障和卡纸。解决方案：在由输送长度计算部31计算的记录材料P的长度短于转印和定影所需的距离的情况下，图像形成装置将随后的纸张的进给的定时设定为在执行打印处理期间，在预定时间段t1期间，后续的记录材料P不被馈送到转印辊隙N。同时，该装置形成变形部分，使得施加到带电辊2的偏压在比时间段t1短的预定周期t2期间切换到OV带电控制，只有对应于时间段t1 转印辊隙和带电辊2之间的距离L1。曝光装置3的激光束照射，对显影装置4的显影偏压施加到转印装置5的转印偏压不在去除静电部分感光鼓1的表面在电气化控制切换之后面对每个图像形成部分。版权所有（C）2004，JPO

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