Patent ID: 8852743

Claim:
An electro-conductive member for electrophotography, comprising: an electro-conductive mandrel; and an electro-conductive layer, wherein: the electro-conductive layer comprises a binder resin having, in a molecule thereof, a sulfo group or a quaternary ammonium group as an ion exchange group, and an ion opposite in polarity to the ion exchange group; wherein: the binder resin comprises any structure selected from the group consisting of structures represented by a chemical formula (1)-1 and a chemical formula (1)-2, and any structure selected from the group consisting of structures represented by a chemical formulae (2)-1 to a chemical formula (2)-3; and wherein: the binder resin has a molecular structure preventing occurrence of a matrix-domain structure based on the binder resin in the electro-conductive layer: —(CF 2 ) m — Formula (1)-1 —(CF 2 —CF 2 —O) n — Formula (1)-2 —(CH 2 —CH 2 —O) p — Formula (2)-1 —(CH 2 —CHCH 3 —O) q — Formula (2)-2 —(CH 2 —CH 2 —CH 2 —CH 2 —O) r — Formula (2)-3 in the formula (1)-1, m represents an integer of 2 or more and 20 or less, in the formula (1)-2, n represents an integer of 5 or more and 50 or less, in the formula (2)-1, p represents an integer of 1 or more and 25 or less, in the formula (2)-2, q represents an integer of 1 or more and 15 or less, and in the formula (2)-3, r represents an integer of 1 or more and 12 or less.