Fixing apparatus and image-forming device
AssigneeRicoh Company, Ltd.
InventorMasahiko Satoh
Life of this patent
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Abstract
A fixing apparatus for fixing a visible image, including a first rotating device for rotatably fixing a visible image transferred on a medium from a transfer device which develops an electrostatic latent image formed on a latent image bearing body with a developer, and a second rotating device for rotatably supporting the first rotating device while the first rotating device fixes the visible image on the medium, the second rotating device being positioned to form a transfer pass for the medium with the first rotating device, wherein the developer contains a toner having a volume mean grain size of from 5 to 10 micrometers and a grain size not larger than 5 micrometers accounting for 60 through 80 number percent, and the first rotating device has a surface resistivity between 1×107 through 1×1010 Ω/square.
Claims22
A fixing apparatus for fixing a visible image, comprising:
- a fixing member
- an opposite member formed at an opposite side of said fixing member so as to form a nip between said fixing member and said opposite member, wherein the fixing apparatus uses a toner having a grain not larger than 5 micrometers accounting for at least 60 number percent, wherein a surface resistivity of the opposite member is between 1×107 through 1×1010 Ω/square.
An image-forming device that uses a fixing apparatus, the fixing apparatus comprising:
- a fixing member;
- and
- an opposite member formed at an opposite side of said fixing member so as to form a nip between said fixing member and said opposite member, wherein the fixing apparatus uses a toner having a grain size not larger than 5 micrometers accounting for at least 60 number percent, wherein a surface resistivity of the opposite member is between 1 10 7 through 1 ×10 10 Ω/square.
Dependencies are inferred from the claim text.