The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2003
Filed:
Apr. 17, 2001
Applicant:
Inventors:
Toshiyuki Kabata, Yokohama, JP;
Toshio Fukagai, Numazu, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 5/14 ;
U.S. Cl.
CPC ...
G03G 5/14 ;
Abstract
An image forming apparatus including a photoreceptor including a photosensitive layer on a surface of an electroconductive substrate and a light irradiator configured to irradiate the photoreceptor with a light beam having a wavelength &lgr; represented in units of micrometers and a diameter &phgr; represented in units of micrometers to form a dot latent image on the photoreceptor, wherein a maximum height in a part of a profile of the lower surface of the photosensitive layer in a sampling range of &phgr; is not less than &lgr;/(2n), where n is a refractive index of the photosensitive layer at the wavelength &lgr;.