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1. 发明专利

JP2000267502A ROTARY DRUM DEVICE AND IMAGE FORMING DEVICE 失效
公开(公告)号：JP2000267502A
公开(公告)日：2000-09-29
申请号：JP7093899
申请日：1999-03-16
申请人： FUJI XEROX CO LTD
发明人： NIIKURA MAKOTO
IPC分类号： G03G21/00 , F16C13/00 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To keep the rotary driving load of an image carrier at a low level and to obtain an image of high quality by constituting a device so that 1st and 2nd rotary shafts may be moved relatively in a linear direction linking between the rotational centers of the shafts. SOLUTION: A rotational center line of an image carrier is aligned with the rotational center line of a driven gear 2a, and the rotational center of the driven gear 2a, the rotational center of an idler gear 3a and the rotational center of a driving motor output gear 10a are arranged on a straight line in a vertical direction. The rotary shaft with the driven gear 2a fixed is supported by a housing with high rigidity. The idler gear 3a is fixed on an idler gear bracket 33a which is controlled by a pair of slide guides 34a for the idler gear as a control means so that the bracket 33a may be moved in only the vertical direction (linear direction linking the axial centers of the gears), but, not moved in a horizontal direction, and the gear 3a is fitted while being energized by a spring 35a as an elastic body in the vertical direction by a fixed pressure with reference to the driven gear 2a.

2. 发明专利

JPH08286479A WET COLOR IMAGE FORMING DEVICE 失效
公开(公告)号：JPH08286479A
公开(公告)日：1996-11-01
申请号：JP9346695
申请日：1995-04-19
申请人： FUJI XEROX CO LTD
发明人： NIIKURA MAKOTO
IPC分类号： G03G15/06 , G03G15/10 , G03G15/11
摘要： PURPOSE: To efficiently eliminate background soiling by the use of a simple inexpensive construction by providing a specific wire auxiliary developing electrode at a position nearer to an image carrying rotary body between a liquid developer supplying position and the side before a developing region. CONSTITUTION: The wire auxiliary developing electrode 10 is disposed in a range from where a liquid developer 9 supplied from nozzles 44 comes into first contact with the surface of the image carrying rotary body (photoreceptor) 1 to before the electrode 10 is affected by a developing electric field by a roll- like electrode 50 in the developing region. As the wire conductive member 10a of the developing electrode 10, at least one or more metallic wires are used and an auxiliary developing bias having a potential for moving the toner of the developer 9 to the image part of an electrostatic latent image on the photoreceptor 1 and further, a background part as well by electrophoresis is applied. Therefore, unwanted toner heaping and sticking on the edge part of the image part due to edge development is prevented and further, the toner is never pushed to the side of the background part by the flowing of a dispersion liquid, etc.

3. 发明专利

JPH08211746A LIQUID DEVELOPING DEVICE 失效
公开(公告)号：JPH08211746A
公开(公告)日：1996-08-20
申请号：JP1528595
申请日：1995-02-01
申请人： FUJI XEROX CO LTD
发明人： MACHIDA YOSHINORI , SHOJI YOSHIO , UCHIUMI SHINICHI , SHIGEHIRO KIYOSHI , USUI SATOSHI , NIIKURA MAKOTO , IDA AKIHIRO
IPC分类号： G03G21/10 , G03G15/06 , G03G15/10
摘要： PURPOSE: To obtain simple and compact constitution and to sufficiently clean a plate like developing electrode by sucking a liquid developer remaining on the surface of the developing electrode with a recovering pump through a slit. CONSTITUTION: The inside of the housing 49 of a liquid developing device 48Y is provided with the plate like developing electrode 62 disposed in a position facing the surface of a photoreceptor drum 42, a slit nozzle 66 for supplying the liquid developer to the gap 64 between the drum 42 and the electrode 62, a recovering roll 68 confronted with the drum 42 in a part nearer to the downstream side than the plate like developing electrode 62 and a scraping member 70 abutted on this roll. Then, a shutter 80 opened/closed by the on and off of a clutch is provided in the communicative part of a developer reservoir part 71 and the slit nozzle 66. further, a slit opening 72a is formed on the surface of the electrode 62 and the developer remaining on the surface of the electrode 62 is sucked/removed by the recovering pump connected to an opening 72b on one end of a slit groove 72.

4. 发明专利

JPS62254163A COLOR IMAGE FORMING DEVICE 失效
公开(公告)号：JPS62254163A
公开(公告)日：1987-11-05
申请号：JP9909486
申请日：1986-04-28
申请人： FUJI XEROX CO LTD
发明人： NIIKURA MAKOTO
IPC分类号： G03G15/01 , G03B15/16
摘要： PURPOSE:To obtain an image with excellent color balance by heating a form before each transfer process. CONSTITUTION:A noncontacting type fixing device 11 is a heating type fixing device composed of, for example, a flash fixing device, etc., and the form is heated before the 1st transfer process to vaporize water in the form previously, so that the form contacts a photosensitive drum 4 almost without deforming. A yellow developing device 6-1 transfers a powder image of yellow to the form firstly by a transfer device 14 composed of a bias power source, etc. Then, a magenta developing device 6-2 performs development and the form to which the powder image of yellow is transferred as mentioned above is a little heated for fusion again by; the noncontacting type fixing device 11 through the rotation of a transfer drum 7 prior to the transfer of the 2nd powder image. At this time, the form is heated previously, so it seldom deforms.

5. 发明专利

JPS62254159A COLOR IMAGE FORMING DEVICE 失效
公开(公告)号：JPS62254159A
公开(公告)日：1987-11-05
申请号：JP9909386
申请日：1986-04-28
申请人： FUJI XEROX CO LTD
发明人： NIIKURA MAKOTO
IPC分类号： G03G15/01 , G03G15/00 , G03G21/16
摘要： PURPOSE:To constitute and arrange a module accurately and extremely easily by assembling, and attaching and detaching the module on the basis of the driving shaft of a photosensitive drum positioned accurately on a main body side in advance. CONSTITUTION:The drum shaft 15 of the photosensitive drum 2 is fixed at a specific position of the rear surface frame 15 of a main device body through two ball bearings 17 and a drum pivotal support member 16, and coupled with a driving motor 18. In this case, the distance between drum shafts of drums by colors and the accuracy of the parallelism are secured by the fitting of the drum shafts 15 to the main body frame to enable a laser optical system to be positioned on the basis of the drum shafts 15. Further, the photosensitive drum 2 is fitted to the front surface frame and rear surface frame 21 of an image formation module 12 through a ball bearing 17 and a drum support member 25.

6. 发明专利

JPS60205559A FIXING DEVICE OF ELECTROPHOTOGRAPHIC COPYING MACHINE AND THE LIKE 失效
公开(公告)号：JPS60205559A
公开(公告)日：1985-10-17
申请号：JP6291984
申请日：1984-03-30
申请人： FUJI XEROX CO LTD
发明人： NIIKURA MAKOTO
IPC分类号： G03G15/20
摘要： PURPOSE:To enable easy and rapid mounting and dismounting of a heat roll by arranging a heat roll sliding member superior in heat resistance and sliding performance on a fixing frame. CONSTITUTION:A pressure roll 1 and a pair of upper and lower heat rolls 2 are fixed to the fixing frames 3, 3' by using bearings 4, 4' between them. At that time, the bearings 4, 4' a little larger in outside diameter than the shafts of the heat rolls 2 are used, and the fixing holes 5, 5' to be formed through the frames 5, 5' for fixing the bearings 4, 4' are formed so as to match the outer diameters of the bearing 4, 4'. The lower parts of the fixing holes 5, 5' are provided with notches 6, 6' and the sliding member made of ''Teflon'' resin or the like, superior in heat resistance and slidability are arranged on these notches 7, 7'.

7. 发明专利

JPS5945462A Electrophotographic copying machine 失效
标题翻译：电脑复印机
公开(公告)号：JPS5945462A
公开(公告)日：1984-03-14
申请号：JP15512282
申请日：1982-09-08
申请人： Fuji Xerox Co Ltd
发明人： NIIKURA MAKOTO
IPC分类号： G03G21/00 , G03G15/20
CPC分类号： G03G15/2064
摘要： PURPOSE:To prevent electrical accidents and the damage of connecting instruments, by providing a switch which turns on and off a power source in accordance with a fixing device which fixes an apparatus, which consumes a high electric power, in a copying machine and cutting off the power supply automatically when the apparatus is removed. CONSTITUTION:In the state where a lever 12 is turned up to press a pressure roll 3 to a heat roll 1, a magnet 15 approaches a magnet reed switch 16, and the switch 15 is set to the operation state; and if the temperature of the roll 1 is lower than a set value, an AND circuit is operated, and its output is sent to a solid-state relay, and the relay contact is closed to supply electric power to a heater 2, and the roll 1 is heated, and thus, fixation is possible. When the temperature of the roll 1 exceeds the set value, and AND circuit is made unoperated, and the relay contact is opened, and the power supply to the roll 1 is stopped automatically. When the lever 12 is turned down to separate the roll 3 from the roll 1, the switch 16 is made unoperated, and the power supply to the roll 1 is stopped automatically; and in this state, even if a connector in a power supply circuit of the heater 2 is attached or detached, the damage is prevented because of no current.
摘要翻译：目的：为了防止电气事故和连接仪器的损坏，通过提供一种根据固定装置打开和关闭电源的开关，其将消耗高功率的装置固定在复印机中并切断当设备取出时，电源自动供电。构成：在杆12向上转动以将加压辊3压向加热辊1的状态下，磁体15接近磁簧簧开关16，开关15被设定为运转状态。如果辊1的温度低于设定值，则AND电路动作，将其输出送到固态继电器，继电器触点闭合，向加热器2供电，辊1被加热，因此固定是可能的。当辊1的温度超过设定值时，AND电路不工作，继电器触点断开，并且对卷1的电源自动停止。当杆12向下转动以将卷3与卷1分离时，开关16不工作，并且对卷1的电力供应自动停止; 并且在该状态下，即使加热器2的电源电路中的连接器被安装或拆卸，也由于没有电流而防止损坏。

8. 发明专利

JPS6134573A Heat-fixing device of electrophotographic copying machine, etc. 失效
标题翻译：电子复印机的热固定装置等
公开(公告)号：JPS6134573A
公开(公告)日：1986-02-18
申请号：JP15674584
申请日：1984-07-26
申请人： Fuji Xerox Co Ltd
发明人： NIIKURA MAKOTO
IPC分类号： G03G15/20
CPC分类号： G03G15/206
摘要： PURPOSE:To improve the thermal efficiency of an entire heat-fixing device, by forming a pressure roller paired with a heat roller by covering the surface fo a heat pipe with an elastic member high in thermal conductivity and positioning the pressure roller below the heat roller. CONSTITUTION:When power supply is turned on, a heater 1 lights and heats up a heat roller 2. During a fixing operation, the heat roller 2 and a pressure roller 3 are turned under a pressure-contacted condition and, when the rollers 2 and 3 rotate, a solvent 4 contained in the heat pipe 5 of the roller 3 thoroughly wets the inner wall of the heat pipe 5 and the heat pipe 5 sufficiently exerts its capability as a heat pipe. When fixing a small-sized paper for example, the temperature at the end sections of the roller 2 where the paper does not pass through is absorbed by the solvent 4 and occurrence of an abnormally high temperature is prevented and the heat energy absorbed by the solvent 4 is transferred to the paper passing section of the roller 2 so as to rise the temperature at the paper passing section. Therefore, operations are made to improve the fixing efficiency through an elastic member 6.
摘要翻译：目的：为了提高整个热定影装置的热效率，通过用热传导率高的弹性部件覆盖热管的表面形成与加热辊成对的压力辊，并将加压辊定位在加热辊的下方。构成：电源接通时，加热器1点亮并加热加热辊2.在定影操作期间，加热辊2和加压辊3在压力接触状态下转动，并且当辊2和 3旋转时，包含在辊3的热管5中的溶剂4彻底润湿热管5的内壁，并且热管5充分发挥其作为热管的能力。当例如固定小型纸时，纸张不通过的辊2的端部处的温度被溶剂4吸收，并且防止发生异常高温并且由溶剂吸收的热能 4被传送到辊2的纸张通过部分，以便提高纸张通过部分的温度。因此，通过弹性部件6进行固定效率的提高。

9. 发明专利

JPS60212784A Heating fixing roller of electrophotographic copying machine or the like 失效
标题翻译：电动复印机加热固定辊或类似物
公开(公告)号：JPS60212784A
公开(公告)日：1985-10-25
申请号：JP6866284
申请日：1984-04-06
申请人： Fuji Xerox Co Ltd
发明人： NIIKURA MAKOTO
IPC分类号： G03G15/20
CPC分类号： G03G15/2057
摘要： PURPOSE:To reduce a wear caused by a slide against an inner ring of a bearing, and also to prevent a deformation caused by a collision to other machine parts by performing a surface treatment of an anodic oxidizing method, etc. to the surface of a bearing use journal part, making an Al2O3 film, and increasing the hardness. CONSTITUTION:Before entering into a process for coating a parting agent such as ''Teflon'', etc. to the surface of a paper running part 2, a film 5 of an Al2O3 layer is formed by performing a surface treatment of an anodic oxidizing method, etc. to bearing use journal parts 3, 3', or the surface of its vicinity containing the bearing use journal parts 3, 3', so that the hardness of the surface is increased. In this way, a degree by which the surface of the bearing use journal part is worn due to a slide against an inner ring of a bearing is reduced remarkably, and accordingly, by that portion, a life of a roller itself can be extended, and also, even if the journal parts 3, 3' are made to collide with other machine parts, etc. by a handling mistake, the generation of a state that they are deformed immediately as before can also be suppressed enough.
摘要翻译：目的：为了减少滑动对轴承内圈产生的磨损，并且还通过对阳极氧化方法等进行表面处理来防止与其他机器部件碰撞引起的变形轴承使用轴颈零件，制作Al2O3薄膜，增加硬度。构成：在进行将“特氟隆”等分离剂涂布到纸张运行部2的表面的工序之前，通过进行阳极氧化的表面处理，形成Al 2 O 3层的膜5 方法等，以承载使用轴颈部件3,3'或其附近的表面，其包含轴承使用轴颈部件3,3'，使得表面的硬度增加。以这种方式，由于滑动轴承的内圈滑动使轴承部件的表面磨损的程度显着降低，因此通过该部分可以延长辊本身的寿命，并且即使通过处理错误使轴颈部3,3'与其他机械部件等碰撞，也能够充分抑制它们如前所述立即变形的状态的产生。

10. 发明专利

JPS5944633A Temperature detector of heating roll type fixation device 失效
标题翻译：加热辊式固定装置温度检测器
公开(公告)号：JPS5944633A
公开(公告)日：1984-03-13
申请号：JP15512382
申请日：1982-09-08
申请人： Fuji Xerox Co Ltd
发明人： NIIKURA MAKOTO
IPC分类号： G03G15/20 , G01K7/22 , G01K13/08
CPC分类号： G01K13/08
摘要： PURPOSE:To improve durability, by connecting a conductive member formed as one body on the same face of its sheet, to a temperature detecting element which is made press-contact with the surface of a heating roll through a heat resistance and abration resistance sheet by the elasticity of an elastic member. CONSTITUTION:A polyimide sheet 15 is made to adhere as one body to a plastic made hard substrate 13 superior in an electric insulating property, and two lines of a copper foil pattern 17 are formed on the inside face of the sheet 15 by electric plating, metallizing, etc. An output terminal of a glass enclosed type thermistor and the tip of the pattern 17 are connected electrically. The thermistor 4 is made press-contact by constant pressure through the polyimide sheet 15 to the circumferential face of a heating roll by elasticity of a pressure spring plate material 9 and a silicon sponge 3, by which a circumferential face temperature of the heating roll 8 is detected.
摘要翻译：目的：为了提高耐久性，通过将在其片材的同一面上形成为一体的导电构件连接到通过耐热性和耐磨损片材与加热辊的表面压接的温度检测元件，弹性部件的弹性。构成：将聚酰亚胺片15作为一体粘接到电绝缘性优异的塑料制硬质基板13上，通过电镀在片材15的内面上形成两行铜箔图案17，金属化等。玻璃封闭型热敏电阻的输出端子和图案17的尖端电连接。通过压力弹簧板材9和硅海绵3的弹性使热敏电阻4通过聚酰亚胺片15通过恒定的压力压接到加热辊的周面，由此加热辊8的周面温度被检测到。

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