AUTOMATIC HIGH AND LOW LIMIT TONER DISPENSER CONTROL
Original Publication Date: 1980-Dec-31
Included in the Prior Art Database: 2004-Apr-02
Xerox Disclosure Journal
In controling the toner concentration of a two-component developer material in a xerographic copier, it is known that an electrical control signal which is proportional to the toner concentration can be generated by allowing developer to flow between a pair of conductive transparent plates to which a DC potential has been applied and monitoring the light transmitted between the plates using a photocell. It is also known that this signal may be used to control the operation of the toner disperser which adds toner powder to the developer material. An improved method for controling the operation of a toner dispenser using signals from this type of sensing device is described in this disclosure.