Electrostatic Page Printer Using a Thermal Trans-Fix Station and a Thin-Wall Electrostatic Drum
Original Publication Date: 1987-Apr-01
Included in the Prior Art Database: 2005-Feb-01
We have demonstrated the feasibility of an electrostatic printer using a thin-wall aluminum image drum which is coated with a dialectic (Fig. 1) and which, due to its low material volume, has low thermal capacity. The toned image is applied to the drum by conventional means; however, conductive toner can be used because transfer is not performed electrostatically. The use of conductive toners allows magnestylus technology to be incorporated. This technology uses a magnetic conductive toner which is deposited on the dielectric surface by an array of styli in the development nip which are used to selectively induce charge in the toner. The toner is transported to the nip and controlled there by a conventional magnetic core, as shown in Fig. 1.