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1. 发明专利

JP2008116960A Method of fixing toner in image forming apparatus 审中-公开
标题翻译：在图像形成装置中固定调色剂的方法
公开(公告)号：JP2008116960A
公开(公告)日：2008-05-22
申请号：JP2007285665
申请日：2007-11-02
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： EMOTO SHIGERU , TANAKA CHIAKI , WATANABE SHINKO , YAMADA HIROSHI , SUGIYAMA KOSHIN , YAMASHITA YUJI , WATANABE KAZUTO , TOMITA MASAMI
IPC分类号： G03G9/08 , G03G9/087 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a method of fixing toner by which low-temperature fixability, hot offset resistance, glossiness of color toner and good image quality such as transparency in an OHP can be obtained. SOLUTION: The method of fixing toner uses a belt fixing unit having a fixing roller; a heating roller; an endless fixing belt binding these rollers under tension therebetween; a pressure roller disposed to face the fixing roller intervening the fixing belt; and a fixing heater disposed inside one or both of the pressure roller and the heating roller. The method of fixing includes fixing a toner image on an image fixing material conveyed between the pressure roller and the fixing belt by making the pressure roller to touch at the fixing belt without pressurizing the fixing roller intervening the fixing belt, wherein a spherical toner having a roundness of ≥0.96 and containing a modified polyester resin in resin in the toner is used, and the wax in the toner has such a dispersion diameter that wax particles having 0.1-2 μm occupy ≥70% by number of the total number of all wax particles. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种定影调色剂的方法，通过该调色剂可以获得OHP的低温定影性，耐热粘合性，彩色调色剂的光泽度和良好的图像质量如透明度。解决方案：定影调色剂的方法使用具有定影辊的带固定单元; 加热辊; 在这些辊之间张紧地结合这些辊的环形定影带; 设置成面对定影辊的定影辊的压力辊; 以及设置在所述加压辊和所述加热辊的一个或两者内的定影加热器。定影方法包括：通过使加压辊在定影带上接触而将调色剂图像定影在输送在压力辊和定影带之间的图像定影材料上，而不会使定影带上的定影辊加压，其中，具有使用≥0.96的圆度并且在调色剂中含有树脂中的改性聚酯树脂，并且调色剂中的蜡具有这样的分散直径，即0.1-2μm的蜡颗粒占所有蜡总数的≥70％粒子。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008058992A Image forming method and image forming apparatus 有权
标题翻译：图像形成方法和图像形成装置
公开(公告)号：JP2008058992A
公开(公告)日：2008-03-13
申请号：JP2007280817
申请日：2007-10-29
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE YOICHIRO , SUZUKI MASANORI , SHIRAISHI KEIKO , YAMASHITA MASAHIDE , WATANABE KAZUTO , KATO MITSUTERU
IPC分类号： G03G9/08 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide an image forming method in which the gloss of an image can be changed by the kind of an image and a user's liking, the stable low-gloss image can be obtained while sufficient fixability is given, and the middle-gloss and high-gloss image can be obtained without performing significant fixing condition change, and an image forming apparatus.
SOLUTION: The image forming method comprising holding a recording material between an endless belt and a roller and fixing a toner image formed on the recording material by heat and pressure is characterized by forming the toner image on the recording material by using the toner of 15,000 to 45,000 in weight average molecular weight by GPC, 5 to 15 in weight average molecular weight/number average molecular weight, in which the component of ≥1×10
5 in molecular weight exists at 3 to 15 wt.%, and changing over the gloss of the fixed image by a means of changing over the gloss of the fixed image.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供图像的光泽可以通过图像的种类和用户喜好改变的图像形成方法，可以获得稳定的低光泽图像，同时具有足够的定影性，并且可以获得中等光泽和高光泽图像而不执行显着的固定条件改变，以及图像形成装置。解决方案：包括在环形带和辊之间保持记录材料并通过热和压力固定形成在记录材料上的调色剂图像的图像形成方法的特征在于通过使用调色剂在记录材料上形成调色剂图像通过GPC测定的重均分子量为15,000〜45,000，重均分子量/数均分子量为5〜15，其中分子量≥1×10 5 的成分为3〜 15重量％，并且通过改变固定图像的光泽度来改变固定图像的光泽度。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2006003614A Image forming apparatus, image forming method of same, and process cartridge for image formation 审中-公开
标题翻译：图像形成装置，图像形成方法以及图像形成的处理盒
公开(公告)号：JP2006003614A
公开(公告)日：2006-01-05
申请号：JP2004179669
申请日：2004-06-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： OSHIMA KOICHI , WATANABE KAZUHIKO , WATANABE KAZUTO , TOKUMASU TAKAHIKO , NAKAI HIROSHI , SUZUKI YASUO , TAMOTO NOZOMI , MATSUURA NEKKA , CHIKUSHIYUTSU NOBORU
IPC分类号： G03G21/00 , G03G15/02 , G03G15/08 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus preventing deterioration of a surface of a photoreceptor due to short range discharge in the image forming apparatus adapting an electrifying method by the short range discharge. SOLUTION: The image forming apparatus is provided in which a surface of a body to be electrified 1 is continuously and uniformly coated with necessary quantity of protective substance in a discharge range in a specified electrifying condition during repetition of an image forming process. A coating means consists of a pre-coating means and the coating means, the protective substance is coated on the coating means through the pre-coating means and element percentage [%] of the protective substance existing on the surface of the body to be electrified 1 in the discharge range is ≥ 6.23×10 -3 ×(Vpp-2×Vth)×f/v[%] with the measurement by XPS. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像形成装置，其防止在通过短距离放电适应通电方式的图像形成装置中由于短距离放电而导致的感光体表面的劣化。解决方案：提供一种图像形成装置，其中在重复图像形成处理期间，在指定的通电条件下，在要充电的物体1的表面在指定的通电条件的放电范围内连续均匀地涂覆必需量的保护物质。涂布装置由预涂装置和涂布装置组成，保护物质通过预涂装置涂覆在涂布装置上，并且存在于要带电的身体表面上的保护物质的元素百分数[％] 1在放电范围内通过XPS测量为≥6.23×10 -3 ×（Vpp-2×Vth）×f / v [％]。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005321818A Color toner and image forming method 有权
标题翻译：彩色调色剂和图像形成方法
公开(公告)号：JP2005321818A
公开(公告)日：2005-11-17
申请号：JP2005170425
申请日：2005-06-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KATO MITSUTERU , SUZUKI MASANORI , WATANABE YOICHIRO , YAMASHITA MASAHIDE , WATANABE KAZUTO , SHIRAISHI KEIKO
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To provide a color toner which suppresses occurrence of unevenness and voids in transfer of a solid image, scattered transfer of a thin line portion and halfway untransfer of a thin line portion in the case of a small-particle-diameter color toner, hardly causes surface stain and filming, and is excellent also in durability, and to provide an image forming method.
SOLUTION: In the color toner having a weight average diameter D
4 of 5.0-9.0 μm prepared by adding additives to a base toner comprising a binder resin and a colorant, the weight average diameter D
4 of the toner and an image density D
0.6 after fixing when a coating weight of the toner on a transfer material is 0.60 mg/cm
2 satisfy the expression: D
0.6 =-0.15D
4 +k (2.3≤k≤3.3) and the ratio between the weight average diameter D
4 and the number average diameter D
n is D
4 /D
n ≤1.25.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种彩色调色剂，其抑制了在小图像的情况下固体图像的传输中的不均匀性和空隙的发生，细线部分的散射转移和细线部分的中途转印 - 直径彩色调色剂，几乎不引起表面污渍和成膜，并且耐久性也优异，并提供图像形成方法。解决方案：在通过向包含粘合剂树脂和着色剂的基础调色剂中添加添加剂而制备的重均粒径D 4 5.0-9.0μm的彩色调色剂中，重均粒径D < SB> 4 ，并且当转印材料上的调色剂的涂布重量为0.60mg / cm 2时，固色后的图像浓度D 0.6 满足表达式：D 0.6 = - 0.15D 4 + k（2.3≤k≤3.3），重均直径D 4 并且数均粒径D n 是D 4 / D n ≤1.25。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2005055834A Image forming apparatus, process cartridge, developing apparatus and image formation method 审中-公开
标题翻译：图像形成装置，处理盒，开发装置和图像形成方法
公开(公告)号：JP2005055834A
公开(公告)日：2005-03-03
申请号：JP2003289337
申请日：2003-08-07
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE KAZUTO , NARIMI SATOSHI , TAMAKI SHINJI , HATORI SATOSHI , KATO TSUTOMU , MIZUISHI HARUJI , TANIGAWA TETSUO , TANZAWA SETSU
IPC分类号： G03G9/10 , G03G9/09 , G03G9/107 , G03G9/113 , G03G15/01 , G03G15/08 , G03G21/16 , G03G21/18
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus, process cartridges, developing devices and an image formation method which prevent an erroneous exchange by a worker on the process cartridges or developing devices of a plurality of colors and which makes stock management and manufacture costs low. SOLUTION: Only a carrier C is housed in a developing section 23 of a new process cartridge 20 so that a plurality of process cartridges corresponding to toners T of a plurality of colors are made common. Toners T in a plurality of colors are supplied from a toner supply section 32 to the developing section 23 after the new process cartridge 20 is installed in an installing section of the apparatus main body. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像形成装置，处理盒，显影装置和图像形成方法，其防止工作人员对处理盒或多种颜色的显影装置进行错误交换，并使库存管理并制造成本低。解决方案：只有载体C被容纳在新的处理盒20的显影部分23中，使得与多种颜色的调色剂T相对应的多个处理盒是共同的。在新的处理盒20安装在装置主体的安装部分中之后，将多种颜色的调色剂T从调色剂供应部分32供应到显影部分23。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2004070291A Developer and image forming device 审中-公开
公开(公告)号：JP2004070291A
公开(公告)日：2004-03-04
申请号：JP2003160247
申请日：2003-06-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUURA ATSUKA , NAKAZATO YASUFUMI , WATANABE KAZUTO , TARUMI NORIYOSHI
IPC分类号： G03G9/08 , G03G5/147 , G03G9/087 , G03G15/02 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developer which suppresses the deterioration in image quality arising from the latent image unsharpness by adhesion of fine conductive particles, an image forming device, and a process cartridge. SOLUTION: The developer holding the relation Σr 2 xn1(r)Σr 2 xn2(r)>2.0 when the number of insulative particles included in the developer having a grain size(r) among these particles in the grain size below about ≤0.1 μm is defined as n1(r) and the number of the conductive particles having a grain size(r) among these particles as n2(r), and Σr 2 xn1(r)Σr 2 xn2(r)>2.247 in the grain size below 0.6 μm, is provided, and the image forming device and process cartridge using this developer are provided. COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2004062114A Image forming apparatus 审中-公开
公开(公告)号：JP2004062114A
公开(公告)日：2004-02-26
申请号：JP2002224240
申请日：2002-07-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MATSUURA ATSUKA , WATANABE KAZUTO
IPC分类号： G03G9/10 , G03G5/04 , G03G9/09 , G03G15/02 , G03G15/08 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To reduce the adhesion of magnetic particles to an intermediate transfer member of an image forming apparatus including the electrostatic charge to be implanted by a magnetic brush and the intermediate transfer member. SOLUTION: The image forming apparatus has the following relational expression: βx ¾Vc¾xä¾vopc-vim¾xN/vim+k} xk 2 /6 among the moving speed vim [m/sec] of the intermediate transfer belt 24 in a transferring section, the moving speed vopc [m/sec] of the image carrier 11, the contact width N [m] in the moving direction where the image carrier 11 and the belt 24 come into contact with each other, an electrostatic charge potential Vc [V], the true specific gravity ρd[kg/m 3 ] of a developing carrier, the grain size Lc [m] of the magnetic particles, the grain size Ld [m] of the developing carrier, the concentration Wt [wt%] of toners, the electrostatic charge quantity qt [C/kg] of the toners, the electrostatic capacity β [F/m 2 ] per unit area of the image carrier 1, and the contact width k [m] at which the two-dimensional projection shape of the magnetic particles comes into electrical contact with a circumscription line. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2004029134A Method for manufacturing electrophotographic photoreceptor, electrophotographic photoreceptor manufactured by the method, electrophotographic apparatus using the same, and process cartridge for electrophotographic apparatus 有权
公开(公告)号：JP2004029134A
公开(公告)日：2004-01-29
申请号：JP2002181558
申请日：2002-06-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUZUKI YASUO , ARIGA TAMOTSU , WATANABE KAZUTO , YOSHINO MASAKI
IPC分类号： G03G5/05 , G03G5/14 , G03G5/147
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method capable of giving high coating quality with low-cost space-saving manufacturing facilities, giving good image quality at a low cost and environmentally superior to a conventional coating method because a large amount of an organic solvent is not used. SOLUTION: In an electrophotographic photoreceptor having at least a photosensitive layer, the photosensitive layer is formed on an electrically conductive support by spraying a coating liquid by an ink jet method. In a photoreceptor having at least a photosensitive layer and an intermediate layer, the intermediate layer is formed as above. In a photoreceptor having at least a photosensitive layer and a protective layer, the protective layer is formed as above. A piezo system is preferably adopted as the ink jet method. COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2006010966A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2006010966A
公开(公告)日：2006-01-12
申请号：JP2004186736
申请日：2004-06-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： OGAWA TAKESHI , SUZUKI YASUO , WATANABE KAZUTO , YOSHINO MASAKI , YASUTOMI HIROSHI , YOSHII MASAKO
IPC分类号： G03G21/14 , B41J2/44 , G03G5/047 , G03G15/04 , G03G15/043 , H04N1/036 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To obtain a proper writing position at low cost in an image forming apparatus using a photoreceptor having a structure in which a charge generating layer is formed as minute regions in a dispersed dot shape. SOLUTION: A prescribed pattern 1 obtained by developing a luminescent pattern emitted from a plurality of LDs is formed on the photoreceptor having a structure in which a charge generating layer is formed as minute regions in a dispersed dot shape and the pattern 1 is measured by a P sensor 210. Density values measured by the P sensor 210 are input into an LD determination section 109, where an LD used for output is determined. A prescribed pattern 2 is formed on the photoreceptor and this pattern 2 is measured by the P sensor 210. Density values measured by the P sensor 210 are input into a delay quantity determination section 108, where a delay quantity used for output is determined. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：在使用具有其中形成电荷产生层的结构的感光体作为分散点形状的微小区域的图像形成装置中，以低成本获得适当的写入位置。解决方案：通过显影从多个LD发射的发光图案获得的规定图案1形成在具有其中形成电荷产生层的结构的感光体上，作为分散点形状的微小区域，并且图案1是由P传感器210测量。由P传感器210测量的密度值被输入到LD确定部分109中，其中确定用于输出的LD。在感光体上形成规定的图案2，并通过P传感器210测量图案2.由P传感器210测量的密度值被输入延迟量确定部分108，其中确定用于输出的延迟量。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2004219959A Image forming apparatus 审中-公开
公开(公告)号：JP2004219959A
公开(公告)日：2004-08-05
申请号：JP2003010307
申请日：2003-01-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE KAZUTO , NAKAMURA ISAO
IPC分类号： B41J29/38 , G03G21/00 , G03G21/02 , G03G21/18 , G06F3/12
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of calculating expenses that each of users shares for every process cartridge. SOLUTION: The image forming apparatus is equipped with a plurality of process cartridges 10 which each support at least one means selected out of an electrostatic charging means, a developing means, and a cleaning means integrally with an image carrier and can be loaded in and unloaded from an image forming device main body, and can print according to a command from a terminal 1 on a network as a host device. The apparatus is equipped with pixel number calculating means 4 and 5 which calculate the number of pixels of image information in a print command from the terminal 1 on the network and a storage means 7 for storing as data toner consumptions of the process cartridges 10 based upon the print command for every user which stores data for every user ID of the terminal 1 on the network. COPYRIGHT: (C)2004,JPO&NCIPI

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