FORMATION METHOD OF COMPOSED TONER IMAGE AND WRITE APPARATUS USED FOR IT

摘要

PURPOSE: To provide a method for forming two toner images in the single frame of an image structure and a light device used for it. CONSTITUTION: Synthetic toner images composed of a first toner and a second toner are formed on the image structure 1. The electrostatic images of a first polarity are formed on the image structure 1 and toned by the first toner of the first polarity. The image structure 1 is exposed in terms of images so as to form the second electrostatic images of the first polarity. Exposure is performed while performing overlapping on the part of the image structure 1 under first toner images and the electric charge of the first polarity of a photoconductive layer under the first toner images is prevented from repelling the toner and being forced to an area where the second electrostatic images are discharged. The second exposure is performed through the base of the image structure 1 and it is preferable to completely expose the part of electrostatic images under the first toner images. It is convenient to expose the web image structure 1 through the base by a printing head provided in a printer. The printer is provided with the printing head and a positioning bar for placing a lens at an appropriate position from the image structure 1.