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US 5,860,045 AGranted
Image forming method
AssigneeMinolta Co., Ltd.
InventorsMitsutoshi Sakamoto, Hiroshi Sakai
Life of this patent
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Abstract
In an image forming method in which an image is formed through the charging, exposing, developing, transferring, and charge eliminating steps using an amorphous silicon photoreceptor having an amorphous silicon photosensitive layer, an image forming method according to the present invention is so adapted that letting t1 be a time period from the charging step to the developing step and t2 be a time period from the charge eliminating step to the charging step, the value of t2/t1 is not less than one.
Claims14
An image forming method comprising the steps of:
- charging a surface of an amorphous silicon photoreceptor having an amorphous silicon photosensitive layer;
- subjecting the charged amorphous silicon photoreceptor to exposure corresponding to image information, to form an electrostatic latent image;
- supplying toner to the electrostatic latent image from a developing device to perform development, to form a toner image on the surface of the amorphous silicon photoreceptor;
- transferring the toner image onto a transfer member;
- cleaning the toner remaining on the surface of the amorphous silicon photoreceptor after the transfer by a cleaning device;
- irradiating light onto the surface of the amorphous silicon photoreceptor after the cleaning, to eliminate charge remaining on the amorphous silicon photoreceptor;
- and
- repeating the abovementioned steps in sequence, letting t1 be a time period from the charging step to the developing step, and t2 be a time period from the charge eliminating step, to the charging step, t1 and t2 satisfying t2/t1.gtoreq.1, said time period t2 being less than 200 msec.
5 more elements
An image forming method comprising the steps of:
- positively charging a surface of an amorphous silicon photoreceptor having an amorphous silicon photosensitive layer;
- subjecting the charged amorphous silicon photoreceptor to exposure corresponding to image information, to form an electrostatic latent image;
- supplying positively charged toner to the electrostatic latent image from a developing device to perform reversal development, to form a toner image on the surface of the amorphous silicon photoreceptor;
- transferring the toner image onto a transfer member;
- cleaning the toner remaining on the surface of the amorphous silicon photoreceptor after the transfer by a cleaning device;
- irradiating light onto the surface of the amorphous silicon photoreceptor after the cleaning, to eliminate charge remaining on the amorphous silicon photoreceptor;
- and
- repeating the abovemetioned steps in sequence, letting t1 be a time period from the charging step to the developing step, and t2 be a time period from the charge eliminating step to the charging step, t1 and t2 satisfying t2/t1.gtoreq.1, said time period t2 being less than 200 msec.
5 more elements
Dependencies are inferred from the claim text.