Patent · US Active

Image forming apparatus containing color shading correction and bias correction of intermediate transfer belt

US8139991B2 · kind B2 · utility

0Cited by
1References
9Claims
0Family size

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Key dates

Filing dateNov 26, 2008
Grant dateMar 20, 2012
Priority date
Expiry dateOct 30, 2030

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/0161
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A bias correction is carried out before a color registration correction is carried out so as to stabilize the running state of an intermediate transfer belt, thereafter the bias correction ceases and the color registration correction is carried out.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.