Patent ID: 7125636

Claim:
A toner for use in an image-forming apparatus equipped with an oil-less fixing unit comprising a main heating member and a pressing member, the main heating member gets in contact with an unfixed toner surface on a recording medium and fixes the unfixed toner at a nip part of the main heating member and the pressing member, the main heating member and the pressing member define a boundary surface thereof, and the surface takes a configuration protruding toward the pressing member side, wherein the toner comprises a resin comprising a block polyester and an amorphous polyester, and the toner has an initial relaxation modulus G (t=0.01) (Pa) of the toner at 120° C., in relaxation time of 0.01 (sec), of G (t=0.01) [Pa]≧1.0×10 5 [Pa].