Two superimposed ion current formed images using photoconductive screen gives wider potential range for gradation control in electrophotography
AssigneeKonishiroku Photo Industry Co., Ltd.
InventorsTatsuo Ohta, Sohji Shinozaki, Syusaku Yoshida, Hideo Ohba
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Abstract
A method for forming an electrostatic latent image on an image recording medium includes forming a primary electrostatic latent image on a screen-type photosensitive plate, forming a secondary electrostatic latent image on the image recording material by irradiating the same with a charged particle current passed through the screen-type plate carrying the primary latent image, and correcting the secondary latent image on the recording material by irradiating the same with a charged particle current passed through the screen-type plate carrying the primary latent image.
Claims6
A method for forming an electrostatic latent image of an original on an image recording material comprising the steps of:
- forming a primary electrostatic latent image on a photoconductive layer of a screen-type photosensitive plate;
- forming a secondary electrostatic latent image on the image recording material by irradiating the recording material with a charged particle current passed through the screen-type photosensitive plate carrying the primary latent image;
- and
- correcting the secondary electrostatic latent image on the recording material by irradiating the recording material bearing the secondary latent image with a charged particle current passed through the screen-type photosensitive plate carrying the primary latent image.
A method for forming an electrostatic latent image on an image recording material comprising the steps of;
- forming a primary electrostatic latent image on a photoconductive layer of a screen-type photosensitive plate;
- forming a secondary electrostatic latent image on the image recording material by irradiating the recording material with a charged particle current passed through the screen-type photosensitive plate carrying the primary latent image while applying a primary bias potential to a conductive layer of the screen-type photosensitive plate;
- and
- correcting the secondary electrostatic latent image on the image recording material by irradiating the recording material bearing the secondary latent image with a charged particle current passed through the screen-type photosensitive plate carrying the primary latent image while applying a secondary bias potential to the conductive layer of the screen-type plate.
Dependencies are inferred from the claim text.