초록 ▼

A fixing device includes i) two surface moving bodies, at least one of which is driven so that the surface moving bodies come in contact with each other and a nip is formed and ii) a heat source configured to heat at least one of the surface moving bodies. A transfer medium is put in the nip so that

A fixing device includes i) two surface moving bodies, at least one of which is driven so that the surface moving bodies come in contact with each other and a nip is formed and ii) a heat source configured to heat at least one of the surface moving bodies. A transfer medium is put in the nip so that the toner image is heat-fixed on the transfer medium. A separation plate is provided and is configured to remove the transfer medium. Rise of temperature of a head end part, at a side of the surface moving body, of the separation plate is given priority over rise of temperature of other parts of the separation plate.

대표청구항 ▼

The invention claimed is: 1. A fixing device configured to fix a toner image on a transfer medium, comprising: a separation plate configured to remove the transfer medium from a surface moving body, the separation plate including: a guide part configured to guide the transfer medium; and a head end

The invention claimed is: 1. A fixing device configured to fix a toner image on a transfer medium, comprising: a separation plate configured to remove the transfer medium from a surface moving body, the separation plate including: a guide part configured to guide the transfer medium; and a head end part, wherein a plurality of notch parts are provided in the guide part; and wherein one of the notch parts in a center part of the guide part has a width greater than a width of one of the notch parts in an end part of the guide part. 2. The fixing device claimed in claim 1, wherein the head end part is thinner than the guide part. 3. The fixing device as claimed in claim 1, wherein the surface moving body is a fixing belt. 4. A fixing device configured to fix a toner image on a transfer medium, comprising: a separation plate configured to remove the transfer medium from a surface moving body, the separation plate including: a guide part configured to guide the transfer medium; and a head end part, wherein a notch part is provided in the guide part; and a vapor receiving part is provided inside the notch part. 5. The fixing device as claimed in claim 4, wherein the vapor receiving part inclines to a side of the surface moving body. 6. The fixing device as claimed in claim 4, wherein the vapor receiving part is made of a material having a thermal conductivity lower than a thermal conductivity of the guide part. 7. A fixing device configured to fix a toner image on a transfer medium, comprising: a separation plate configured to remove the transfer medium from a surface moving body, the separation plate including: a guide part configured to guide the transfer medium: and a head end part provided in the guide part via a heat insulating material, wherein the head end part is thinner than the guide part. 8. An image forming apparatus, comprising: a fixing device claimed in one of claims 1, 2 and 3 through 4. 9. A fixing device configured to fix a toner image on a transfer medium, comprising: a separation plate configured to remove the transfer medium from a surface moving body, the separation plate including: a guide part configured to guide the transfer medium; and a head end part, wherein a plurality of openings are provided in the guide part; and wherein one of the openings in a center part of the guide part has a width greater than a width of one of the openings in an end part of the guide plate.