Apparatus and method of image forming with a speed controlled transfer member

(19)

(11)

EP 1 431 835 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION

(48)	Corrigendum issued on:
	15.09.2004 Bulletin 2004/38

(43)	Date of publication:
	23.06.2004 Bulletin 2004/26

(21)	Application number: 03029482.1

(22)	Date of filing: 19.12.2003

(51)	International Patent Classification (IPC)⁷: G03G 15/00

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

(30)

Priority:

20.12.2002 JP 2002370036

(71)	Applicant: Ricoh Company, Ltd.
	Tokyo 143 (JP)

(72)	Inventor:
	Kamiya, Takuroh, c/o Ricoh Company, Ltd. Ohta-ku, Tokyo 143-8555 (JP)

(74)	Representative: Schwabe - Sandmair - Marx
	Stuntzstrasse 16 81677 München 81677 München (DE)

(54)	Apparatus and method of image forming with a speed controlled transfer member

(57) An image forming apparatus (1) includes a rotating member (10), a drive mechanism, a scale (70), and a scale reading mechanism (71). The rotating member (10) is configured to carry an image. The drive mechanism is configured to rotationally drive the rotating member (10). The scale (70) is provided around an entire perimeter of a surface of the rotating member (10). The scale reading mechanism (71) is configured to read the scale (70) and arranged in a region where the rotating member is prevented from wavering. A rotating drive of the rotating member (10) is controlled based on information read by the scale reading mechanism (71).