Apparatus for forming image

Application Number: 00108992
Application Date: 2000.05.26
Publication Number: 1278077
Publication Date: 2000.12.27
Priority Information: 1999/5/27 JP 147729/99
International: G03G15/14;H04N1/405
Applicant(s) Name: Ricoh K. K.
Inventor(s) Name: Sakamoto Koji;Sawayama Noboru
Patent Agency Code: 11105
Patent Agent: yang wu
Abstract The image forming apparatus sets various conditions for the inside of the apparatus so that the diameter of a toner image per pixel on a photoreceptor 1a is 20 [mu]m or more but 50 [mu]m or less. In order to facilitate flying of the toner of an image transferred to the surface of transfer paper 100, the apparatus adapts a structure having a transfer means that includes: an intermediate transfer belt 51 as a primary transfer member; an intermediate transfer device 5 as a primary transfer means for transferring the toner image on the photoreceptor 1a onto the intermediate transfer belt 51; and a transfer roller as a secondary transfer means for transferring the toner image on the intermediate transfer belt 51 onto the transfer paper 100. Thus, it can obtain a smooth image in which roughness is restricted, in an image forming apparatus that obtains stable image quality by adapting a binary process.