| 主权项 |
1. An image forming apparatus for forming an image developer image on a medium that is carried along a medium carrying route, comprising:
at least a first development part that is provided with an image forming developer containing image forming pigments and image forming macromolecular compound, supplying the image forming developer; at least a second development part that is provided with a bonding developer containing bonding macromolecular compound, supplying the bonding developer; a transfer part that transfers the image forming developer supplied from the first development part to a surface of a medium, and also transfers the bonding developer supplied from the second development part to the surface of the medium to which the image forming developer was transferred, and a fuser part that is positioned at a downstream side of the medium carrying route from the transfer part and fuses the image forming developer to the medium by heating the image forming developers transferred by the transfer part, and also fuses the bonding developer with the medium by heating the bonding developer transferred by the transfer part to the surface of the medium where the image forming developer is fused, wherein heating temperature T1 (° C.) for the image forming developer by the fuser part and heating temperature T2 (° C.) for the bonding developer by the fuser part satisfy a condition expressed by Eq. (1) below, and solubility parameter δ1 of the image forming macromolecular compound and solubility parameter δ2 of the bonding macromolecular compound satisfy a condition expressed by Eq. (2) below.
10° C.≦T1−T2≦30° C. (1)5.9≦|δ1−δ2|≦7.4 (2) |
