(19)
(11) EP 1 434 109 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION

(48) Corrigendum issued on:
22.09.2004 Bulletin 2004/39

(43) Date of publication:
30.06.2004 Bulletin 2004/27

(21) Application number: 03029881.4

(22) Date of filing: 29.12.2003
(51) International Patent Classification (IPC)7: G03G 15/08
(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: 26.12.2002 JP 2002376250
05.02.2003 JP 2003027904

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

(72) Inventors:
  • Sano, Junichi
    Ohta-ku Tokyo 143-8555 (JP)
  • Sekine, Takeyoshi
    Ohta-ku Tokyo 143-8555 (JP)

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

   


(54) Developing apparatus with two regulating blades


(57) A two-component developing apparatus includes a developer carrier (15), a first regulating member (17), a developer container (16), a toner container (19), and a developer stirring member (30). The developer carrier (15) is configured to carry and transfer the two-component developer including a magnetic carrier. The first regulating member (17) is configured to regulate an amount of the two-component developer carried and transferred by the developer carrier (15). The developer container (16) is configured to receive the developer removed by the first regulating member (17). The toner container (19) is configured to supply toner to the developer carrier (15). The developer stirring member (30) is configured to carry and stir the developer between the first regulating member (17) and a second regulating member (23). The second regulating member (23) includes a support member (40) on one end side of the second regulating member (23) in its longitudinal direction to which greater amount of the developer is supplied than to another end side of the second regulating member (23).