ABSTRACT
Liquid development of electrostatic images was first demonstrated independently by Met calfe (1955) and by Mayer (1957). Since then a large number of liquid toner based electrostatographic processes have been developed and turned into products. The electrographic and electrophotographic processes and their individual steps have been well described in several books, including those of Schaffert (1975), Williams (1984), and Schein (1988).
