Patent · US Expired

Image forming apparatus having relationship between driving gear pitch and scanning line pitch

US5917529A · kind A · utility

6Cited by
5References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 7, 1996
Grant dateJun 29, 1999
Priority date
Expiry dateOct 7, 2016

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N2201/0458
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An image forming apparatus includes an image bearing member; a scanning device for scanning the image bearing member in accordance with image data; driving source for driving the image bearing member; and a gear for transmitting power to the image bearing member from the driving source. The movement pitch of the image bearing member corresponding to a gear pitch of the gear, and a line pitch of a basic matrix for tone gradation printing are sufficiently different to prevent interference fringe of the image.

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