Patent · US Expired

Apparatus for maintaining an electrophotographic apparatus

US5206685A · kind A · utility

16Cited by
2References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 19, 1992
Grant dateApr 27, 1993
Priority date—
Expiry dateMar 19, 2012

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01L2224/4826
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An apparatus for maintaining an electrophotographic apparatus with at least a photosensitive member comprises a first memory for storing a count value for the number of prints, and a second memory for storing the number of replacements of the first memory when the count value for the number of prints has reached a value based on which a decision is made whether the service life of the photosensitive member is expired. When it is determined that the value stored in the second memory has reached a predetermined value, a user is informed of the maintenance period of other maintenance-requiring components than the photosensitive member.

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