ELECTROSTATIC CHARGE MEMBER AND ELECTROSTATIC CHARGE DEVICE

摘要

PROBLEM TO BE SOLVED: To enhance a quiet state by reducing noise in the midst of electrostatic charge operation even when the electrostatic charge operation is executed by impressing a voltage obtained by superimposing an AC voltage on a DC voltage in the case that a contact type electrostatic charge system that a body to be electrostatically charged is electrostatically charged by bringing an electrostatic charge member into contact with the body to be electrostatically charged and impressing the voltage between them is executed. SOLUTION: When the body to be electrostatically charged 5 is electrostatically charged by the contact type electrostatic charge system by bringing the roller-like electrostatic charge member 1 having an elastic layer into contact with the body 5 and impressing the voltage obtained by superimposing the AC voltage on the DC voltage between them, the electrostatic charge member obtained by forming a single or plural ring-like projection parts along in a circumferential direction on the circumference thereof is used as the roller- like electrostatic charge member 1. It is preferable that the height of the ring- like projection part is 3 300μm.