TONERS FOR PRODUCING A MULTICOLOUR ELECTROSTATIC IMAGE OF HIGH PRINT DENSITY ON X-Y-PLANE-CONDUCTIVE DIELECTRIC RECORDING MEDIA

摘要

A method of producing a multicolor electrostatic image is provided. The method includes: providing an electrostatic printer having at least one toner station; applying a bias voltage to at least one toner station comprising a liquid toner; providing an x-y-plane-conductive dielectric recording medium; applying an imagewise distribution of charge on a first major surface of the x-y-plane-conductive dielectric recording medium; and intimately contacting the x-y-plane-conductive dielectric recording medium with a liquid toner from the biased toner station, wherein the liquid toner comprises a carrier liquid and toner particles, thereby depositing the toner particles in a pattern corresponding to the surface charge on the x-y-plane-conductive dielectric recording medium to form an imaged surface. The toner particles of at least one toner that is subsequently contacted by another toner are deposited ina thickness sufficient to otherwise provide a 100 %-filled image Reflective Optical Density value selected from the group of about 1.2 to about 1.6 for magenta, about 0.8 to about 1.1 for yellow, about 1.2 to about 1.6 for cyan, about 1.2 to about 1.6 for black, and combinations thereof. The image is applied at a speed of at least about 0.5 inch per second. At least about 50 % of the area of the imaged surface of the x-y-plane-conductive dielectric recording medium is imaged by at least one toner that is subsequently contacted by another toner. The imaged surface has fog of no greater than about 1.5 and cover over of no greater than about 5, both of which are expressed as Delta E* units. Also provided are the toners and a direct print film.