Browse Prior Art Database

Original Publication Date: 1978-Aug-31
Included in the Prior Art Database: 2004-Mar-31

Publishing Venue

Xerox Disclosure Journal


In an electrophotographic printing machine, a photoconductive surface is charged to a substantially uniform level. There-after, the original document being reproduced is illuminated and the light rays reflected therefrom selectively discharge the charge on the photoconductive surface recording an electrostatic latent image thereon. Conventionally, the electrostatic latent image is developed and transferred to a copy sheet. In systems of this type, the toner particles are dry and not tacky. Alternatively, an intermediate web of material may be interposed between the development system and the photoconductive surface. The toner particles may be developed on the intermediate web in image configuration rather than the photoconductive surface. The intermediate web is then heated and advanced into contact with the copy sheet. Preferably, the toner is heated to about 3400 F. Thereafter, the tacky toner is positioned in contact with the copy sheet and transferred thereto forming a copy of the original document on the copy sheet.