摘要:
A toner manufacturing method is provided. The toner manufacturing method includes a step of adhering fine resin particles whose volume average particle size is 5% or more and 17% or less of a volume average particle size of toner base particles, to surfaces of the toner base particles; and a step of plasticizing the toner base particles and the fine resin particles by adding mechanical impact thereto while spraying lower alcohol, and fusing the fine resin particles to the surfaces of the toner base particles to form a plurality of projections of the fine resin particles, on the surfaces of the toner base particles. Surface coverage of the surfaces of the toner base particles with the projections is 10% or more and 50% or less.
摘要:
A capsule toner that a blocking resistance is improved without harming a low temperature fixation property, and a method of manufacturing the same are provided. A capsule toner includes a toner base particle containing a binder resin and a colorant, and a resin coating layer containing a crystalline polyester resin and an amorphous resin, the resin coating layer coating a surface of the toner base particle.
摘要:
The resin coated carrier is used with a toner in which an external additive having an average primary particle size of 50 nm or more is added to a toner particle, and has a carrier core and a resin coating layer on the surface of the carrier core. In the resin coated carrier, the following expression (1) is satisfied: 0.5≦−log {(A/C)/(B/C)}≦2.5 (1) wherein A represents a volume resistance value (Ω/cm) of the resin coated carrier in an electric field of 1000 V/cm that is obtained by conducting a stirring test, B represents a volume resistance value (Ω/cm) of the resin coated carrier in an electric field of 1000 V/cm before the stirring test, and C represents a volume resistance value (Ω/cm) of the carrier core in an electric field of 1000 V/cm.
摘要翻译:树脂涂布载体与调色剂一起使用,其中平均一次粒径为50nm以上的外部添加剂添加到调色剂颗粒中,并且在载体芯的表面上具有载体芯和树脂涂层。 在树脂被覆载体中满足以下表达式(1):0.5≦̸ -log {(A / C)/(B / C)}≦̸ 2.5(1)其中A表示体积电阻值(& cm),通过进行搅拌试验而得到的电场为1000V / cm的树脂被覆载体的B,表示在1000V / cm 2的电场中的树脂被覆载体的体积电阻值(& cm,并且C表示载体芯在1000V / cm的电场中的体积电阻值(& R g / cm)。
摘要:
A developer of the present invention includes a toner and a carrier. The toner contains a charge control agent, and the carrier has on its surface a coating layer to which a charge control agent and electrically conductive particles are added. All of constituent elements of one of the charge control agent of the toner and the charge control agent of the carrier are contained in constituent elements of the other one of the charge control agents. With the configuration, the developer of the present invention is capable of stably maintaining a toner charge amount and outputting high-quality images for long periods.
摘要:
A carrier of the present invention is used in a developer including a toner which includes at least a binder resin and an organic colorant, and the carrier has a core and a coating formed on the surface of the core, the coating including (i) a charge control agent for controlling a charge whose polarity is the same as a polarity of a charge controlled by a charge control agent included in the toner, and (ii) a conductive particles. The use of the carrier of the present invention enables: prevention of decrease in the charging amount of the toner which includes at least a binder resin and an organic colorant; and formation of a stable, high-resolution, high-quality image which has very few image defects such as a photographic fog.
摘要:
A carrier of the present invention is used in a developer including a toner which includes at least a binder resin and an organic colorant, and the carrier has a core and a coating formed on the surface of the core, the coating including (i) a charge control agent for controlling a charge whose polarity is the same as a polarity of a charge controlled by a charge control agent included in the toner, and (ii) a conductive particles. The use of the carrier of the present invention enables: prevention of decrease in the charging amount of the toner which includes at least a binder resin and an organic colorant; and formation of a stable, high-resolution, high-quality image which has very few image defects such as a photographic fog.
摘要:
The resin coated carrier is used with a toner in which an external additive having an average primary particle size of 50 nm or more is added to a toner particle, and has a carrier core and a resin coating layer on the surface of the carrier core. In the resin coated carrier, the following expression (1) is satisfied: 0.5≦−log {(A/C)/(B/C)}≦2.5 (1) wherein A represents a volume resistance value (Q/cm) of the resin coated carrier in an electric field of 1000 V/cm that is obtained by conducting a stirring test, B represents a volume resistance value (Ω/cm) of the resin coated carrier in an electric field of 1000 V/cm before the stirring test, and C represents a volume resistance value (Ω/cm) of the carrier core in an electric field of 1000 V/cm.
摘要翻译:树脂涂布载体与调色剂一起使用,其中平均一次粒径为50nm以上的外部添加剂添加到调色剂颗粒中,并且在载体芯的表面上具有载体芯和树脂涂层。 在树脂涂布载体中,满足以下表达式(1):0.5A / C)/(B / C)}其中A表示在1000的电场中树脂涂布载体的体积电阻值(Q / cm) V / cm,B表示搅拌试验前的1000V / cm的电场中的树脂被覆载体的体积电阻值(Ω/ cm),C表示体积电阻值( 在1000V / cm的电场中的载体芯的Ω/ cm 2。
摘要:
In an ink-jet head device, a main tank, a sub tank and an ink-jet head are mounted in this order in a carriage, with the main tank placed at the top. The main tank, sub tank and ink-jet head are connected to one another by a three-way ink conduit. At a junction of the ink conduit is disposed a three-way switching valve, which selectively switch a path connecting the sub tank to the main tank and a path connecting the sub tank to the ink-jet head, without causing the ink-jet head and the main tank to communicate with each other. As a result, an ink-jet head device and an ink-supplying method are realized, in which the ink-jet head can maintain suitable negative pressure and in which consumption of ink is reduced.
摘要:
An image blur correcting unit allows the optical axis of a lens system to coincide with the center of an imager, thus correcting an image blur. The unit includes a stationary member and a holder member. The holder member holds either one of the elements of the lens system or the imager and moves relative to the stationary member in a first direction and a second direction, the first and second directions being orthogonal to each other in a plane orthogonal to the optical axis. The unit further includes a first guide section and a second guide section for guiding the holder member in the first and second directions during movement, and a driving section moving the holder member in the first and second directions. The one of the elements of the lens system or the imager is disposed outside an area surrounded by the first and second guide sections.
摘要:
The image forming apparatus include: a resistance detection section (14) for measuring a volume resistivity of a two component developer (11) on a surface of a developer bearing member (12); a resistance memory section (16) for storing therein a preset volume resistivity; a resistance comparison section (15) for comparing the volume resistivity of the two component developer (11) which has been measured by the resistance detection section (14) with the preset volume resistivity stored in the resistance memory section (16); and a control section (17) for carrying out a process for replacing the two component developer or carrier if the volume resistivity of the two component developer (11) is lower than the preset volume resistivity.