(19)
(11) EP 2 592 483 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.09.2016 Bulletin 2016/39

(43) Date of publication A2:
15.05.2013 Bulletin 2013/20

(21) Application number: 12184257.9

(22) Date of filing: 13.09.2012
(51) International Patent Classification (IPC): 
G03G 15/04(2006.01)
 G03G 15/043(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 15.09.2011 JP 2011202400
31.08.2012 JP 2012191982

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

(72) Inventors:
  • Ishikawa, Naoichi
    Saitama-ken, 340-0802 (JP)
  • Iwasaki, Takeshi
    Saitama-ken, 340-0802 (JP)
  • Ogawa, Yuya
    Saitama-ken, 340-0802 (JP)
  • Komura, Taro
    Saitama-ken, 340-0802 (JP)

(74) Representative: Schwabe - Sandmair - Marx 
Patentanwälte Rechtsanwalt Partnerschaft mbB Joseph-Wild-Straße 20
81829 München
81829 München (DE)

   


(54) Writing device, image forming apparatus, and writing method


(57) In an embodiment, a writing device receives a binary signal in accordance with image data, and writes an image based on the signal. The writing device includes a multiple-value unit (300) and a writing unit (500). The multiple-value unit (300) outputs a multiple-value signal based on the received binary signal. The number of the multiple values is an integral multiple of the binary. The writing unit (500) writes a binary image having a lager resolution than the image data based on the multiple-value signal.







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Search report