(19)
(11) EP 2 161 135 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.05.2010 Bulletin 2010/18

(43) Date of publication A2:
10.03.2010 Bulletin 2010/10

(21) Application number: 09179904.9

(22) Date of filing: 28.02.2008
(51) International Patent Classification (IPC): 
B41J 2/175(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(62) Application number of the earlier application in accordance with Art. 76 EPC:
08003712.0 / 2039520

(71) Applicant: Brother Kogyo Kabushiki Kaisha
Nagoya-shi, Aichi 467-8561 (JP)

(72) Inventors:
  • Hattori, Shingo
    Nagoya-shi Aichi 467-8562 (JP)
  • Nakamura, Hirotake
    Nagoya-shi Aichi 467-8562 (JP)

(74) Representative: Prüfer & Partner GbR European Patent Attorneys 
Sohnckestrasse 12
81479 München
81479 München (DE)

   


(54) Ink cartridge, set of ink cartridges, and ink cartridge determination system


(57) An ink cartridge includes a first signal blocking portion configured to selectively prevent a first signal from passing therethrough or to alter a path of the first signal. The ink cartridge also includes a second signal blocking portion configured to selectively prevent a second signal from passing therethrough or to alter a path of the second signal. The second signal blocking portion has a thickness determinative of whether the second signal blocking portion prevents the second signal from passing therethrough or alters the path of the second signal at a time that the first signal blocking portion initially prevents the first signal from passing therethrough or alters the path of the first signal.
















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