SYSTEM FUER DIE STEUERUNG DER TONERABGABE.

摘要

An apparatus in which the dispensation of toner particles used to form a highlight colour document is controlled. The percentage of the document arranged to have highlight colour portions thereon is determined, and a first signal corresponding thereto generated. A second signal corresponding to the rate of toner particle usage per document is transmitted. A third signal corresponding to the total number of documents being reproduced is produced. The first, second and third signals are multiplied to generate a control signal corresponding to the required dispense rate for the toner particles to form the highlight colour portions of the copies of the document.