MAGNETIC CARRIER, TWO-COMPONENT DEVELOPER AND IMAGE FORMING METHOD
First Claim
1. A magnetic carrier comprising magnetic carrier particles, each magnetic carrier particle containing at least a magnetic core particle and a resin;
- the magnetic carrier having a resistivity of from 1.0×
106 Ω
·
cm or more to 1.0×
1010 Ω
·
cm or less at an electric-field intensity of 1.0×
103 V/cm as found by measuring dynamic impedance;
electric-field intensity E(109) at which the resistivity of the magnetic carrier comes to 1.0×
109 Ω
·
cm being 2.0×
104 V/cm or less, and electric-field intensity E(108) at which the resistivity of the magnetic carrier comes to 1.0×
108 Ω
·
cm being from 5.0×
103 V/cm or more to 2.8×
104 V/cm or less; and
the electric-field intensity E(108) and the electric-field intensity E(109) being in a ratio, E(108)/E(109), of from 1.0 or more to 5.0 or less.
1 Assignment
0 Petitions
Accused Products
Abstract
A magnetic carrier having magnetic carrier particles each containing at least a magnetic core particle and a resin; the magnetic carrier having a resistivity of from 1.0×106 Ω·cm or more to 1.0×1010 Ω·cm or less at an electric-field intensity of 1.0×103 V/cm as found by measuring dynamic impedance; electric-field intensity E(109) at which the resistivity of the magnetic carrier comes to 1.0×109 Ω·cm being 2.0×104 V/cm or less, and electric-field intensity E(108) at which the resistivity of the magnetic carrier comes to 1.0×108 Ω·cm being from 5.0×103 V/cm or more to 2.8×104 V/cm or less; and the electric-field intensity E(108) and the electric-field intensity E(109) being in a ratio, E(108)/E(109), of from 1.0 or more to 5.0 or less.
79 Citations
9 Claims
-
1. A magnetic carrier comprising magnetic carrier particles, each magnetic carrier particle containing at least a magnetic core particle and a resin;
-
the magnetic carrier having a resistivity of from 1.0×
106 Ω
·
cm or more to 1.0×
1010 Ω
·
cm or less at an electric-field intensity of 1.0×
103 V/cm as found by measuring dynamic impedance;electric-field intensity E(109) at which the resistivity of the magnetic carrier comes to 1.0×
109 Ω
·
cm being 2.0×
104 V/cm or less, and electric-field intensity E(108) at which the resistivity of the magnetic carrier comes to 1.0×
108 Ω
·
cm being from 5.0×
103 V/cm or more to 2.8×
104 V/cm or less; andthe electric-field intensity E(108) and the electric-field intensity E(109) being in a ratio, E(108)/E(109), of from 1.0 or more to 5.0 or less. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification