(19)
(11) EP 1 253 481 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.02.2009 Bulletin 2009/08

(43) Date of publication A2:
30.10.2002 Bulletin 2002/44

(21) Application number: 02076726.5

(22) Date of filing: 17.04.2002
(51) International Patent Classification (IPC): 
G03G 15/34(2006.01)
G03G 15/08(2006.01)
 G03G 15/00(2006.01)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 27.04.2001 EP 01201550

(71) Applicant: Océ-Technologies B.V.
5914 CC Venlo (NL)

(72) Inventors:
  • van der Meer, René Johannes
    5924 CS Venlo (NL)
  • Nijkamp, Aart
    5911 NL Venlo (NL)

   


(54) Direct imaging process with feed back control by measuring the amount of toner deposited


(57) Image forming device comprising an image forming element (10) moving past an image forming station (12) in which toner (38) is deposited on the surface of the image forming element, said image forming element having at least one electrode (22, 24) extending over a predetermined surface area (20) of the image forming element, characterized by a impedance/capacitance measuring circuit (42) measuring the amount of toner deposited on said predetermined surface area (20) on the basis of a resulting change in the impedance/capacitance of the electrode (22, 24).







Search report