approach to the induction of a latent electrostatic image, and fremkaldermateriale for use in the pursuit of this approach.

摘要

1312844 Electro-photography XEROX CORP 30 June 1970 [1 July 1969] 31601/70 Heading G2H A liquid developer containing 15-60% colorant suspended in an insulating liquid is applied from a doctored applicator, having a uniform pattern of raised and depressed portions, in non- electrophoretic manner (i.e. without particle separation). The applicator may have a pattern of 100-300 demarcations/inch, may be a cylindrical roll having a single or triple spiral groove pattern, may be doctored with a polyurethane doctor blade, and may have a potential of the same amount and polarity as the charged areas of the imaging surface. Primary and secondary liquid vehicles, colorants, and dispersants are specified.