Charging device and image forming apparatus

A charging apparatus for charging a member to be charged which has a surface layer having a volume resistivity of 1x109-1x1014 OMEGA cm; a charging member contactable to the member to be charged to electrically charge the member to be charged, the charging member being supplied with a voltage having...

Full description

Saved in:
Bibliographic Details
Main Author CHIGONO; YASUNORI
Format Patent
LanguageEnglish
Published 07.03.2000
Edition7
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:A charging apparatus for charging a member to be charged which has a surface layer having a volume resistivity of 1x109-1x1014 OMEGA cm; a charging member contactable to the member to be charged to electrically charge the member to be charged, the charging member being supplied with a voltage having an AC voltage component; wherein e time constant tau (sec) of the member to be charged and the charging member, a frequency f (Hz) of the AC voltage component, and an effective voltage VAC (V) of the AC voltage component, satisfy:2VAC{1-exp(-+E,fra 1/2+EE f/ tau )}/{1+exp(-+E,fra 1/2+EE f/ tau )}</=50.
Bibliography:Application Number: US19980140405