Carrier for electrophotographic developer, method for manufacturing, developer, container including the developer, and image forming apparatus using the developer wherein the carrier satisfies the relationship 1.0≦C2/C1≦1.3

A method for manufacturing a carrier for a developer, comprising the steps of:

• providing a resin-coated carrier by coating a surface of a magnetic core material with a coating liquid comprising a resin, wherein the coating liquid has a resin content not less than 10.0% by weight;
• and
• crosslinking the resin while the resin-coated carrier is fluidized, wherein the carrier obtained satisfies the following relationship:
• 1.0≦C2/C1≦1.3
• wherein C1 represents a charge quantity of a developer (1) comprising the carrier and a first toner after the developer (1) is subjected to a frictional charge treatment once, wherein concentration of the first toner in the developer (1) is 3% by weight;
• and C2 represents a charge quantity of a developer (2) comprising the carrier, which has been separated from the developer (1) subjected to the frictional charge treatment, and a second toner, said developer (2) being subjected to a frictional charge treatment once, wherein concentration of the toner in the developer (2) is 3% by weight, wherein said first toner and said second toner can be the same or different.