摘要:
The present invention provides a lubricant coater including an applying member for applying a lubricant powder on a surface of an image bearing member, wherein the lubricant powder contains paraffin as a main component, and the lubricant coatability of the applying member is controlled such that a maximum thickness of a lubricant film formed on the image bearing member, which is obtained after the lubricant powder is continuously applied on the surface of the image bearing member for 120 minutes, is 0.25 μm or less.
摘要:
A process cartridge includes a protective agent, a photoconductor, a charging unit, a development unit, a cleaning unit, and an application unit. The protective agent includes paraffin as main component. The photoconductor has a surface including polycarbonate applied with the protective agent. The development unit develops a latent image on the photoconductor. The cleaning unit removes materials remaining on the photoconductor. The application unit applies the protective agent to the surface of photoconductor. One peak in a given binding energy range is used to determine a coating condition of the photoconductor coated by the agent. The coating condition is determined by comparing an area ratio A0 before applying the agent and an area ratio A after applying the agent, each of which is an area ratio with respect to a total area of C1s spectrum of the photoconductor. The coating ratio of the photoconductor is computed by (A0−A)/A0×100.
摘要翻译:处理盒包括保护剂,感光体,充电单元,显影单元,清洁单元和应用单元。 保护剂包括石蜡作为主要成分。 光电导体具有包含保护剂的聚碳酸酯表面。 显影单元在感光体上形成潜像。 清洁单元去除光电导体上剩余的材料。 应用单元将保护剂施加到感光体表面。 使用给定结合能范围内的一个峰来确定由该试剂涂覆的光电导体的涂覆条件。 涂覆条件是通过比较施用该试剂之前的面积比A< 0>和涂覆剂之后的面积比A来确定的,每个面积比相对于C1s谱的总面积的面积比 感光体。 光电导体的涂层比例通过(A 0> 0 A> A)/ A> 0×100来计算。
摘要:
A color toner composition including at least toner particles including at least a binder resin; a colorant and a release agent dispersed in the binder resin; and a titania as an external additive, wherein the colorant has an average dispersion particle diameter not greater than 0.5 μm; the release agent and the binder resin are insoluble to each other; the toner particles satisfy the relationship: 0.05≦Dw/D4≦0.4, wherein Dw represents an average dispersion particle diameter of the release agent and D4 represents a weight-average particle diameter of the toner particles; and the titania has a segregation rate of from 0.5 to 5%.
摘要:
A carrier composition, including a particulate magnetic material; and a layer located on a surface of the particulate magnetic material, wherein the layer is formed by heating a mixture containing a metal alkoxide; a resin having a hydroxyl group reacting with the metal alkoxide; and a particulate inorganic material.
摘要:
A toner including a resin and a colorant which is dispersed in the toner and which has an average major particle diameter not greater than about 0.5 &mgr;m, wherein the following relationships are satisfied: Ta≦100 (° C.), and (Tb−Ta)≧7.0 (° C.), wherein Ta represents a temperature at which the toner has a melt viscosity of 50,000 Pa·sec and Tb represents a temperature at which the toner has a melt viscosity of 5,000 Pa·sec.
摘要:
A toner image fixing method for producing a fixed image having good image qualities without hot-offset even when toner having a relatively low fixing temperature is employed by an image forming apparatus having a fixing unit including two fixing members such that an image formed of thermofusible toner on an image supporting material is fixed by heating at a nipped section of the two fixing members, wherein a ratio of a first adhesion constant to a second adhesion constant, .mu..sub.s-b (1)/.mu..sub.s-b (2), of a surface of a fixing member contacting the thermofusible toner image is less than about 8.0. An adhesion constant .mu..sub.s-b (n) is represented by:.mu..sub.s-b (n)=(cos .theta..sub.b -cos .theta..sub.s)/sin .theta..sub.b,wherein n is 1 or 2, .theta..sub.b and .theta..sub.s represent a receding contact angle and a static contact angle of the surface of the fixing member, respectively, which are measured using a liquid having a dipole moment of greater than about 3.0 debye when n is 1 and measured using another liquid having a dipole moment of 0.0 debye when n is 2.
摘要:
An image forming method wherein a toner image on an image carrier is transferred in a first transfer step to an intermediate image transfer element, the transferred toner image on said intermediate image transfer element being subsequently transferred in a second transfer step to a transfer medium. The intermediate image transfer element has a surface whose angle of contact with water is at least 70 degrees and whose position in the triboelectric series is on a positive side with respect to the position of said toner when the toner on the image carrier is negatively charged and on a negative side with respect to the position of the toner when the toner on the image carrier is positively charged.
摘要:
A protective layer forming device including: a protective agent block containing a metal soap, a protective agent supplying unit configured to supply a protective agent onto a photoconductor, and a pressing unit configured to press the protective agent supplying unit against the protective agent block, wherein the protective agent supplying unit is rotated while being pressed against the protective agent block by the pressing unit, so that the protective agent block is micronized to make the protective agent in the form of fine powder, and the protective agent in the form of fine powder is supplied onto the photoconductor, thereby forming a protective layer on the photoconductor, and wherein the protective agent in the form of fine powder has a particle diameter of 200 μm or smaller and contains protective agent particles of 20 μm to 200 μm in an amount of 1% by mass to 70% by mass.
摘要:
An electrophotographic image forming apparatus including an image bearing member which is a rotatable photoconductor containing an organic photoconductive layer on a conductive cylindrical support, a latent electrostatic image forming unit configured to charge the image bearing member to form a latent electrostatic image thereon, and a developing unit configured to develop the latent electrostatic image on the image bearing member with a developer to form a visible image, wherein the thickness of the organic photoconductive layer monotonically decreases or increases along the rotational axis from one end to the other end, wherein the developing unit includes a development sleeve for bearing and transferring the developer to a developing region, and wherein a development gap is formed between the image bearing member and the development sleeve, and becomes narrower from one end where the organic photoconductive layer is thicker to the other end where the organic photoconductive layer is thinner.
摘要:
A protective agent for an image bearing member of an image forming apparatus. The protective agent is applied onto a surface of the image bearing member and includes a hydrophobic organic compound (A), an inorganic fine particle (B), and an inorganic lubricant (C).