(19)
(11) EP 1 510 879 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION

(48) Corrigendum issued on:
18.05.2005 Bulletin 2005/20

(43) Date of publication:
02.03.2005 Bulletin 2005/09

(21) Application number: 04020435.6

(22) Date of filing: 27.08.2004
(51) International Patent Classification (IPC)7: G03G 15/00, G03G 21/00
(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 PL PT RO SE SI SK TR
Designated Extension States:
AL HR LT LV MK

(30) Priority: 29.08.2003 JP 2003307090
31.10.2003 JP 2003373030
20.10.2003 JP 2003358850

(71) Applicant: Ricoh Company, Ltd.
Tokyo 143-8555 (JP)

(72) Inventor:
  • Kosuge, Akio
    Tokyo 143-8555 (JP)

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

   


(54) Image forming apparatus and process cartridge


(57) An image forming apparatus (1; 200; 201; 630) including at least one image bearing member (5; 100); at least one charging device (14) configured to charge a surface of the at least one image bearing member; and at least one developing device (10; 430; 521, 522, 523, 524) configured to develop an electrostatic latent image on the surface of the at least one image bearing member with a developer including a toner to form a toner image thereon, wherein the surface of the image bearing member has a friction coefficient of from 0.10 to 0.30. The image forming apparatus can include a lubricant applicator (15) configured to apply a lubricant (16) to the image bearing member.
Alternatively, the outermost layer (505) of the image bearing member can include a lubricant.