A fluorescent yellow toner including a core comprising a first solvent yellow 160-incorporated amorphous polyester; a second solvent yellow 160-incorporated amorphous polyester; wherein the first amorphous polyester and the second amorphous polyester are different; and a crystalline polyester; a shell disposed over the core, the shell comprising at least one amorphous polyester; wherein the toner provides printed images having an L* value of greater than 90, an a* value of from about less than ?40 to about ?20, and a b*value of greater than 75. A process of printing the fluorescent yellow toner.

An electrographic printer includes an image carrier configured to receive ink capsules onto the surface of the image carrier. The image carrier is configured to transfer the ink capsules to a medium. The ink capsules comprise an ink having a viscosity in a range of about 100 cP to about and 100,000 cP and an encapsulant layer surrounding the ink. A roller configured to compress the ink capsules onto the medium such that the encapsulant layer ruptures and the ink adheres to the medium.

A toner includes a plurality of first particles and a plurality of second particles. The first particles and the second particles each include a core and a shell layer covering a surface of the core. The cores of the first particles contain a binder resin and a colorant. The cores of the second particles contain a releasing agent. A standard deviation of a volume-based particle size distribution of the toner is no greater than 1.28. An area ratio of regions of the cores of the second particles that are occupied by the releasing agent in a cross-sectional image of the second particles is at least 50%. A number ratio of the second particles is at least 5% and no greater than 25% relative to a total number of the first particles and the second particles.

An electrostatic charge image developing toner set includes a white toner that includes white toner particles containing a core and a coating layer which does not contain a coloring agent and a colored toner that includes colored toner particles containing a core and a coating layer which does not contain a coloring agent, wherein with respect to a difference between an average equivalent circle diameter [Rw1] of the cores (W.sub.in) in the white toner particles and an average equivalent circle diameter [Rw2] of the white toner particles [Rw2Rw1], and a difference between the average equivalent circle diameter [Rc1] of the cores (C.sub.in) in the colored toner particles and the average equivalent circle diameter [Rc2] of the colored toner particles [Rc2Rc1], a relationship of the following Expression (1) is satisfied:
[Rw2Rw1]<[Rc2Rc1](1).

The magenta toner for developing electrostatic images includes colored resin particles containing a binder resin and a magenta colorant, and an external additive. A volume average particle diameter of the colored resin particles is from 5.5 m to 7.0 m. The external additive contains silica particles. The silica particles contain at least silica particles A having a number average particle diameter of from 5 nm to 30 nm and silica particles B having a number average particle diameter of from 31 nm to 100 nm; wherein a total content of the silica particles is from 0.5 part by mass to 4.5 parts by mass, with respect to 100 parts by mass of the colored resin particles. A liberation rate of the silica particles calculated by a specific liberation rate measuring method is in a range of from 2.2% to 9.5%.

An electrostatic charge image developing toner includes toner particles including a particulate toner matrix and an external additive adhering to a surface of the particulate toner matrix. The particulate toner matrix includes a crystalline polyester resin. The external additive includes silica particles. The silica particles are secondary particles including primary particles having a diameter in the range of 30 to 90 nm. The secondary particles have an average circularity in the range of 0.25 to 0.50. The secondary particles have an average aspect ratio of 3.0 or more.

An image forming apparatus includes an image bearing member, a developing device, and an intermediate transfer member. The developing device includes a toner container containing a toner. The intermediate transfer member is charged to 3.0 nC/g or less in terms of absolute value at the surface thereof. The toner particles include a surface layer, and the brightness histogram of the toner particles has two local maximums P1 and P2 and a local minimum between P1 and P2. P2 is derived from the organosilicon polymer. P1 lies in a brightness range of 20 to 70, and P2 lies in a brightness range of 130 to 230. The number of pixels of P1 and the number of pixels of P2 are each 0.50% or more relative to the total number of pixels. The total numbers of pixels A1, AV, and A2 each in a specific brightness range satisfy specific relationships.

A process includes forming an emulsion comprising a monomer and a colorant, the colorant further including an anionic functional group and a lipophilic counter ion, and polymerizing the monomer to form a latex, the latex includes polymer nanoparticles having the colorant dispersed therein.

Cores of toner particles contain a non-crystalline polyester resin, a carnauba wax, and a crystalline polyester resin (polymer of monomers including alcohol, carboxylic acid, styrene-based monomer, and acrylic acid-based monomer) having an SP value ((cal/cm.sup.3).sup.1/2) of at least 10 and no greater than 11. Shell layers each include a resin film mainly constituted by a complex of resin particles having a glass transition point of at least 50 C. and no greater than 100 C. A Ru-dyed ratio of the toner particles in a state in which no external additive is present is at least 50% and no greater than 80%. An intensity of an absorbency peak around a wavenumber of 701 cm.sup.1 is at least 0.0100 and no greater than 0.0250. Surface adsorption forces (F.sub.A: coated regions, F.sub.B: exposed regions) satisfy 0 nN<F.sub.A, 50 nNF.sub.B70 nN, and 35 nNF.sub.BF.sub.A65 nN.

The present disclosure relates generally to a method to make a chemically prepared toner that employs a crash cooling process. In particular, the crash cooling process involves the addition of a toner slurry having a temperature between 70 C. and 90 C. to an equivalent amount of cold water having a temperature between 5 C. and 20 C. Polyester and styrene acrylic toners as well as polyester core shell toners having a borax coupling agent between the toner core and toner shell made from this cooling process results in an improvement to the amount of toner waste, thereby achieving a higher toner usage efficiency for an electrophotographic printing system.