Patent ID: 6049345
Filing Date: 2000-04-11
Classification: G03G

Abstract:
An image forming apparatus holding toner on a toner holder and forming an image according to externally applied image data, comprising:a toner tank for storing and supplying toner;a toner holder holding an amount of toner supplied from said toner tank;a doctor blade for regulating the amount of toner held on said toner holder and selectively charging said toner according to said externally applied image data, said doctor blade being connected to a voltage supplying means for supplying a voltage for selectively charging said toner to a specific polarity according to said image data;wherein said doctor blade is divided into conductive electrodes corresponding to pixels constituting said image data and being insulated from each other, where said voltage supplying means selectively supplies a voltage to said divided conductive electrodes according to said image data;an opposite electrode provided opposing said toner holder with a sheet in-between and connected to a power source for transferring said selectively charged toner onto a sheet; andwherein said doctor blade has said conductive electrodes corresponding to said pixels inclined to a rotation direction of said toner holder.