Patent · US Active

Protective layer setting unit, process cartridge, and image forming apparatus using same

US7734242B2 · kind B2 · utility

9Cited by
2References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 7, 2008
Grant dateJun 8, 2010
Priority date
Expiry dateJul 7, 2028

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2221/1609
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A protective layer setting unit includes a protective agent and an application unit configured to apply the protective agent to an image carrying member in a manner sufficient to satisfy equations (1) and (2). A surface condition of the image carrying member is determined by an applied-agent amount index “X” and an agent coating ratio “Y,” and a ratio of “X/Y” is set to 0.020 or less after applying the protective agent for 120 minutes.applied-agent amount index X=Sb/Sa  (1)agent coating ratio Y=(A0−A)/A0×100(%)  (2).

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