Abstract: Ink concentrate container, comprising an inner volume, containing ink for liquid electrostatic printing (LEP), the ink comprising a carrier liquid and electrically chargeable toner particles for electrostatic imaging, an outlet, and at least one flexible wall extending along the inner volume, so that ink can be pressed through the outlet out of the inner volume by deforming the flexible wall.

Abstract: The disclosure provides an apparatus that includes a casing having a wall and defining a cavity. The apparatus may also include a first RF feed that feeds RF energy to the cavity at a first frequency range. The apparatus may also include a controller, configured to control RF energy fed into the cavity via the first RF feed. In some embodiments, the wall comprises a frequency selective surface (FSS) that selectively absorbs RF energy at the first frequency range. The controller may control feeding RF energy to the cavity via the first RF to heat at least a portion of the wall to a temperature above a specified lower temperature threshold for a specified period of time.

Abstract: A charge director material for charging a liquid toner, the charge director material comprising (a) nanoparticles of a simple salt and (b) a sulfosuccinate salt of the general formula MAn, wherein M is a metal, n is the valence of M, and A is an ion of the general formula (I) [R1—O—C(O)CH2CH(SO3?)C(O)—O—R2],??(I) wherein each of R1 and R2 is an alkyl group; said charge director material being substantially free of acids of the general formula (I), wherein one or both of R1 and R2 is hydrogen, and if only one of them is hydrogen, the other is an alkyl group,

Abstract: The present disclosure is drawn to compositions and methods for a liquid electrophotographic ink printing. The composition comprises a liquid vehicle; ink particles; and a charge director system, comprising i) a primary charge component, ii) a secondary charge component, and iii) an electrical stability additive; such that the charge director system provides the following ink conductivities: a high field conductivity of about 100 pS/cm to about 500 pS/cm, a low field conductivity of about 20 pS/cm to about 200 pS/cm, a direct charge conductivity less than about 30 pS/cm, and a particle conductivity of at least 100 pS/cm. Additionally, the liquid electrophotographic ink can be formulated for printing from a liquid electrophotographic printer.

Abstract: Toner compositions, treated fluoropolymer particles, methods of making treated fluoropolymer particles, and the like, are disclosed.

Abstract: Ink toners, methods of making ink, and methods of changing viscosity are disclosed.

Abstract: Ink toners, electroink compositions, methods of making ink toners, methods of making electroink compositions, and the like, are described.

Abstract: A charge director material for charging a liquid toner, the charge director material comprising (a) nanoparticles of a simple salt and (b) a sulfosuccinate salt of the general formula MAn, wherein M is a metal, n is the valence of M, and A is an ion of the general formula (I) [R1—O—C(O)CH2CH(SO3?)C(O)—O—R2],??(I) wherein each of R1 and R2 is an alkyl group; said charge director material being substantially free of acids of the general formula (I), wherein one or both of R1 and R2 is hydrogen, and if only one of them is hydrogen, the other is an alkyl group,

Abstract: Ink toners, electroink compositions, methods of making ink toners, methods of making electroink compositions, and the like, are described.

Abstract: Ink toners, methods of making ink, and methods of changing viscosity are disclosed.