An image forming apparatus includes a first development part provided with an image forming developer containing image forming pigments and image forming macromolecular compound, a second development part provided with a bonding developer containing bonding macromolecular compound, a transfer part t
An image forming apparatus includes a first development part provided with an image forming developer containing image forming pigments and image forming macromolecular compound, a second development part provided with a bonding developer containing bonding macromolecular compound, a transfer part transferring the image forming developer to a surface of a medium, and a fuser part fusing the image forming developer to the medium. 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)
대표청구항▼
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, su
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, anda 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, whereinheating 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, andsolubility 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) 2. The image forming apparatus according to claim 1, wherein the medium is to be folded so that two surfaces facing each other are formed from the surface on which the bonding developer was supplied,the fuser part bonds the two surfaces of the medium through the bonding developer by heating the medium where the image forming developer and the bonding developer were fused. 3. The image forming apparatus according to claim 1, wherein the medium is to be folded so that two surfaces facing each other are formed from the surface on which the bonding developer was supplied,the image forming apparatus further comprises a bonding part that bonds the medium, where the image forming developers were fused, through the bonding developer by heating the medium where the image forming developers and the bonding developer were fused by the fuser part. 4. The image forming apparatus according to claim 1, further comprising: another first development part that is in the same structure as the first development part and containing another image forming pigment that is different from that of the first development part, whereinthe image forming pigment and the another image forming pigment are selected from a yellow pigment, a magenta pigment, a cyan pigment, and a black pigment, andthe bonding developer does not contain any of the image forming pigments for the first development part. 5. The image forming apparatus according to claim 1, wherein a type of the image forming macromolecular compound is different from a type of the bonding macromolecular compound. 6. 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, anda 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, whereinapplied pressure P (kg/cm2) for the bonding developer by the fuser part satisfies a condition expressed by Eq. (3) below, andsolubility parameter δ1 of the image forming macromolecular compound and solubility parameter δ2 of the bonding macromolecular compound satisfy a condition expressed by Eq. (4) below 1.5 kg/cm2≦P≦3.5 kg/cm2 (3)5.8≦|δ1−δ2|≦7.5. (4) 7. The image forming apparatus according to claim 6, wherein the medium is to be folded so that two surfaces facing each other are formed from the surface on which the bonding developer was supplied,the fuser part bonds the two surfaces of the medium through the bonding developer by heating the medium where the image forming developer and the bonding developer were fused. 8. The image forming apparatus according to claim 6, wherein the medium is to be folded so that two surfaces facing each other are formed from the surface on which the bonding developer was supplied,the image forming apparatus further comprises a bonding part that bonds the medium, where the image forming developers were fused, through the bonding developer by heating the medium where the image forming developers and the bonding developer were fused by the fuser part. 9. The image forming apparatus according to claim 6, further comprising: another first development part that is in the same structure as the first development part and containing another image forming pigment that is different from that of the first development part, whereinthe image forming pigment and the another image forming pigment are selected from a yellow pigment, a magenta pigment, a cyan pigment, and a black pigment, andthe bonding developer does not contain any of the image forming pigments for the first development part. 10. The image forming apparatus according to claim 6, wherein a type of the image forming macromolecular compound is different from a type of the bonding macromolecular compound.
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Maeyama, Ryuichiro, Image forming device and method for controlling toner temperature on photoreceptor when a toner image is exposed to light.
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