Patent · US Expired

Color image forming apparatus and control method thereof

US6738594B2 · kind B2 · utility

18Cited by
2References
37Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 15, 2002
Grant dateMay 18, 2004
Priority date
Expiry dateNov 15, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/0112
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

When a transfer and conveyance belt mechanism has already started moving and a recording sheet has just passed through a cyan color photoreceptor drum, photoreceptor drums for cyan, magenta and yellow colors have not yet abutted on the transfer and conveyance belt. Then, only when the recording sheet has passed through the yellow color photoreceptor drum, the photoreceptor drums for cyan, magenta and yellow abut transfer and conveyance belt at the same time.

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