| 摘要 |
Spot on spot color images in a single pass using a light lens copier are enabled. Image exposure is accomplished using light/lens scanning of a multi-color original document together with simultaneous shunting. Using a special photoreceptor configuration and a sequence of image creation steps including the aforementioned simultaneously shunting and exposure step, balanced latent images are formed across the photoreceptor structure. By balanced is meant that latent images exist across both an overcoat layer of the photoreceptor and the rest of the photoreceptor. Such an arrangement precludes development of the image across the overcoat layer if the photoreceptor were to be moved past a development system. Thus, an electrostatic voltmeter used to read the surface potential in the image areas would read zero or near zero volts. Following formation of the a plurality of balanced images, each of the balanced images is, one at a time, caused to become unbalanced prior to its movement past an appropriate development system. Subsequent to the development of each image except for the last one, the imaged area of the photoreceptor is subjected to corona emissions for the purpose of leveling the charge thereon not completely neutralized by development of that images. The unbalancing steps are effected using low resolution exposure devices such as bars or ROS devices. Simultaneous scanning of the original document using a Raster Input Scanner (RIS) provides information which is used by an information processor system for controlling the output of a plurality of low resolution exposure devices.
|
