摘要:
A toner composition having toner particles comprising a gel latex, a high Tg latex, a wax, and a colorant. The gel latex is present in an amount of from about 3 weight percent to about 30 weight percent of the toner composition, the high Tg latex is present in an amount of from about 50 weight percent to about 95 weight percent of the toner composition, the wax is present in an amount of from about 2 weight percent to about 40 weight percent of the toner composition, and the colorant is present in an amount of from about 1 weight percent to about 25 weight percent of the toner composition.
摘要:
A replenisher material of toner particles and carrier particles, wherein a replenisher ratio of the toner particles to the carrier particles in the replenisher is determined as a function of at least one property of the developer and at least one operational property of an apparatus for developing an electrostatic latent image recorded on an image receiving member, and wherein the apparatus includes a housing defining a chamber having a supply of developer comprised of toner particles and carrier particles therein, a donor member spaced from the image receiving member and adapted to transport toner particles of the developer from the chamber to a development zone adjacent the image receiving member, at least one wire positioned in the development zone between the image receiving member and the donor member, a voltage supply for electrically biasing the at least one wire during a developing operation with a current to detach toner particles from the donor member, forming a cloud of toner particles in the development zone, and developing the latent image with toner particles from the cloud, and at least one dispenser for dispensing replenisher comprised of toner particles and carrier particles into the chamber, wherein a replenisher ratio of the toner particles to the carrier particles in the replenisher is determined as a function of at least one property of the developer and at least one operational property of the apparatus. The replenisher ratio is preferably determined as a function of the tribo stability of the developer in a non-replenishment mode of the apparatus and/or as a function of the conductivity of the developer in a non-replenishment mode of the apparatus.
摘要:
Included is an emulsion aggregation toner formulation having at least one latex and a combination of at least two waxes, wherein one wax is a synthetic wax, and another wax is a natural wax, and further including a developer containing a carrier and the just-described toner.
摘要:
A toner that includes at least one polyester resin wherein the amount of free polyvalent acid monomer in the polyester resin is less than 4 mg/gram, and wherein the percentage of the at least one polyester resin with a Mw less than 1500 is less than about 10%.
摘要:
A toner composition having toner particles comprising a gel latex, a high Tg latex, a wax, and a colorant. The gel latex is present in an amount of from about 3 weight percent to about 30 weight percent of the toner composition, the high Tg latex is present in an amount of from about 50 weight percent to about 95 weight percent of the toner composition, the wax is present in an amount of from about 2 weight percent to about 40 weight percent of the toner composition, and the colorant is present in an amount of from about 1 weight percent to about 25 weight percent of the toner composition.
摘要:
A process for toner preparation includes forming toner particles by mixing an emuslion comprising at least binder resin and a colorant, aggregating the toner particles, and blending external additives with the toner particles in a blender to form a toner, wherein the blender has a blend intensity of from about 90.5 to about 100.5 W/lb, a specific blend energy of from about 20.3 to about 35.3 W-h/lb and a blender loading density of from about 0.25 to about 0.55 lb/L.
摘要:
A developer of a mixture of carrier particles and toner particles containing at least one binder, at least one colorant, and optionally one or more additives, has a triboelectric value of from 35 to 60 &mgr;C/g, a charge distribution (Q/D) of from −0.5 to −1.0 fC/&mgr;m and the distribution is substantially unimodal and possesses a peak width of less than 0.5 fC/&mgr;m, preferably less than 0.3 fC/&mgr;m, and a conductivity of the developer ranges from 1×10−11 to 10×10−15 mho/cm as measured at 30 V. The carrier particles of the developer preferably have an average particle diameter of 65 to 90 microns and a size distribution wherein 2.0% or less of a total number of carrier particles have a size less than 38 micrometers. The ratio of carrier volume median diameter to toner volume median diameter is about 10:1. The developer finds particular use in devices utilizing hybrid scavengeless development. Use of a developer with such properties in a hybrid scavengeless development apparatus enables images to be achieved with properties similar to that achieved in offset lithography.
摘要翻译:载体颗粒和含有至少一种粘合剂,至少一种着色剂和任选的一种或多种添加剂的调色剂颗粒的混合物的显影剂的摩擦电压值为35至60μC/ g,电荷分布(Q / D) 为-0.5至-1.0 fC / mum,分布基本上为单峰,峰值宽度小于0.5 fC / mum,优选小于0.3 fC / mum,显影剂的电导率为1×10-11至10x10 -15mho / cm。显影剂的载体颗粒优选具有65至90微米的平均粒径,其中载体颗粒总数的2.0%或更小的尺寸小于38的尺寸分布 微米。 载体体积中值直径与调色剂体积中值直径的比例为约10:1。 开发人员发现在使用混合型无风险开发的设备中特别有用。 在具有这种特性的显影剂中使用具有这种特性的混合扫描装置能够以与胶版印刷法相似的性质来实现图像。
摘要:
A toner that includes at least one polyester resin wherein the amount of free polyvalent acid monomer in the polyester resin is less than 4 mg/gram, and wherein the percentage of the at least one polyester resin with a MW less than 1500 is less than about 10%.
摘要:
Image recording device comprising a development system including toner particles comprising a gel latex, a high Tg latex, a wax, and a colorant, and a fuser member, such as a fluoropolymer coated fuser member, which produces images having improved document offset, vinyl offset and half-tone rub properties.
摘要:
Magnetic toner compositions, conductive developer compositions, and methods for producing images in a hybrid jumping development system, more specifically, in a magnetic ink character recognition system, are disclosed. The developer compositions contain coated magnetic toner particles and coated carrier particles. The toner compositions include a resin, colorant, wax, magnetic component, and surface additives of coated silica, titania, and zinc stearate.