Siemens Aktiengesellschaft

Alban Nusser

Helmut Naeser

A device for inking an electrostatic charge image with toner particles in a xerographic unit is disposed adjacent to an information carrier on which the electrostatic charge image is carried so as to form a developing gap above the charge image. The device has a toner feed channel and a toner discharge channel which are surrounded by an excitation layer for electrostatic charging of the toner particles by triboelectricity. A plurality of multiphase electrodes are disposed adjacent to the device in the area of the feed and discharge channels, the electrodes being supplied with multiphase alternating voltage for generating a nonhomogeneous self-propagating electric field for delivery and withdrawal of the toner particles. A single phase alternating voltage is applied in the area of the developing gap for generating an electric field which presses the toner particles against the information carrier.

Device for inking an electrostatic charge image with toner particles

A preheating saddle for elevating the temperature of a recording carrier upstream of a fixing station in an electrostatic copier or printer. The saddle has heating elements disposed therein in such a manner as to supply the greatest quantity of heat at the upstream end of the saddle while maintaining a constant temperature along the length of the saddle.

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Freising, Germany

Alban Nusser