Patent ID: 7713622

Claim:
A capsule structure comprising: a core agent comprising a fixing solution for fixing a toner to a recording medium, wherein the fixing solution comprises an aliphatic ester held by water in a soluble manner, and having solubility or a swelling property with respect to a resin included in the toner; an inner skin comprising a material insoluble with respect to said core agent; and an outer skin comprising a material having solubility or a swelling property with respect to said core agent, wherein: the aliphatic ester is an aliphatic dicarboxylate dialkoxyalkyl expressed by the following general formula: R 5 (COOR 6 —O—R 7 ) 2 , where: R 5 denotes an alkylene group having a carbon number in a range between 2 and 8; R 6 denotes an alkylene group having a carbon number in a range between 2 and 4; and R 7 denotes an alkyl group having a carbon number in a range between 1 and 4.