Patent · US Expired

Image formation device

US7170543B2 · kind B2 · utility

3Cited by
1References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 3, 2004
Grant dateJan 30, 2007
Priority date
Expiry dateAug 30, 2025

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N2201/04767
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An image formation device changes the rotational rate of a polygon motor, i.e. the main-scanning rate, and selects one of pulse width conversion tables when an image formation is performed multiple times on a single sheet of transfer paper. The changing of the main-scanning rate is for preventing inconsistent sizes between a first recorded image and a second recorded image caused by shrinkage of transfer paper. The pulse width conversion tables allow the pulse widths to be modulated.

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