ELEKTROGRAPHISCHES VERFAHREN UNTER VERWENDUNG VON FLUORESZIERENDEM TONER UND DETEKTOR MIT FILTER ZUR ERZEUGUNG EINES ELEKTRISCHES BILDSIGNALS

摘要

An electrical image signal is produced by an electrographic process including the steps of forming a differential voltage pattern; developing the voltage pattern with a luminescent toner; exciting the developed image to emit radiation; and photoelectrically detecting the emitted radiation to produce an electrical image signal.