Claims
- 1. A method of forming color images, said method including the steps of:
- a. forming latent electrostatically balanced, non-developable, full contrast images on a photoreceptor wherein said non-developable images are formed by uniformly charging said photoreceptor and simultaneously selectively exposing with a high resolution raster output scanner said uniformly charged photoreceptor to image information and simultaneously shunting the surface potential of said photoreceptor to zero volts;
- b. using a relatively low resolution raster output scanner, illuminating only a portion of said image receiver whereby only one of said electrostatically balanced images is rendered unbalanced and therefore developable;
- c. developing said only one of said electrostatically balanced images; and
- d. repeating steps b and c for each of said images.
- 2. The method according to claim 1 wherein the resolution of said low resolution raster output scanner is operated in a non-pulsed mode.
- 3. The method according to claim 2 wherein said photoreceptor comprises an overcoat layer adhered to a generator layer which in turn is adhered to a charge transport layer.
- 4. Apparatus for forming images, said apparatus comprising:
- an imaging member;
- means for forming a plurality of latent electrostatically balanced, non-developable, full contrast images on a photoreceptor wherein said non-developable images are formed by uniformly charging said photoreceptor and simultaneously selectively exposing with a high resolution raster output scanner said uniformly charged photoreceptor to image information and simultaneously shunting the surface potential of said photoreceptor to zero volts;
- a relatively low resolution raster output scanner for sequentially illuminating only a portion of said imaging member whereby only one of said plurality of electrostatically balanced images is rendered unbalanced thereby rendering it developable; and
- means for developing each of said plurality of images once each is rendered developable.
- 5. Apparatus according to claim 4 wherein the resolution of said relatively high resolution raster output scanner is in the order of 400 to 600 dots per inch.
- 6. Apparatus according to claim 5 wherein said photoreceptor comprises a relatively thick overcoat layer adhered to a generator layer which in turn is adhered to a charge transport layer.
Parent Case Info
This is a continuation of application Ser. No. 07/987,495, filed Dec. 7, 1992 now abandoned.
US Referenced Citations (13)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0203196 |
May 1986 |
EPX |
Non-Patent Literature Citations (1)
Entry |
Patent Abstract of Japan, vol. 11, No. 58 (P-550) (2505) 21 Feb. 1987. |
Continuations (1)
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Number |
Date |
Country |
Parent |
987495 |
Dec 1992 |
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