Fixing device and image forming apparatus having the same
AssigneesKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
InventorToshihiro Sone
Life of this patent
Estimating the term…
Abstract
A fixing device includes a fixing unit configured to heat a sheet to fix an image on the sheet, a heating unit configured to heat the fixing unit, and a heat conduction unit disposed adjacent to a heated surface of the fixing unit. The fixing unit includes a first region not in contact with the sheet during heating of the sheet and a second region that is in contact with the heated sheet during heating of the sheet and has a temperature lower than the first region as a result of the contact with the sheet during the heating. The heat conduction unit is configured to transfer heat from the first region to the second region.
Claims20
A fixing device, comprising:
- a fixing rotator that heats a sheet to fix an image on the sheet;
- a heater that heats the fixing rotator;
- and
- a heat conductor that includes a first heat conduction member disposed adjacent to a first region of the fixing rotator that is not in contact with the sheet during heating thereof and a second heat conduction member facing a center of the fixing rotator in a width direction thereof and disposed adjacent to a second region of the fixing rotator that is in contact with the sheet during heating thereof, each of the first and second heat conduction members including a base having a plurality of spaces extending along the width direction of the fixing rotator and liquid contained in the spaces.
An image forming apparatus, comprising:
- an image forming device configured to form an image on a sheet;
- and
- a fixing device configured to fix the image on the sheet, wherein
- the fixing device includes:
- a fixing rotator configured to heat the sheet to fix the image;
- a heater configured to heat the fixing rotator;
- and
- a heat conductor that includes a first heat conduction member disposed adjacent to a first region of the fixing rotator that is not in contact with the sheet during heating thereof and a second heat conduction member facing a center of the fixing rotator in a width direction thereof and disposed adjacent to a second region of the fixing rotator that is in contact with the sheet during heating thereof, each of the first and second heat conduction members including a base having a plurality of spaces extending along the width direction of the fixing rotator and liquid contained in the spaces.
Dependencies are inferred from the claim text.