Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTsuguhiro Yoshida, Koji An
Life of this patent
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Abstract
An image forming apparatus includes a first detector for detecting a temperature of an environment, a fixing unit for fixing a toner image, a second detector for detecting a temperature of the fixing unit and a controller for controlling the fixing unit based on a detecting result of the second detector. The controller performs comparison of a first temperature estimated based on a detecting result of the first detector and a second temperature based on the detecting result of the second detector after completion of a heating operation of the fixing unit and executes a dew condensation removal operation in which a dew condensation in the image forming apparatus is removed in a case in which the second temperature is lower than the first temperature.
Claims6
An image forming apparatus for forming an image on a recording material, the image forming apparatus comprising:
- a first temperature detector that detects a temperature of an environment where the image forming apparatus is installed;
- a fixing unit configured to fix a toner image formed on the recording material by heating and pressurizing;
- a second temperature detector that detects a temperature of the fixing unit;
- and
- a control unit configured to control the fixing unit based on a detecting result of the second unit temperature detector,
- wherein the control unit performs comparison of a first temperature estimated based on a detecting result of the first temperature detector and a second temperature based on the detecting result of the second temperature detector after completion of a heating operation of the fixing unit and executes a dew condensation removal operation in which dew condensation in the image forming apparatus is removed in a case in which the second temperature is lower than the first temperature,
- wherein the fixing unit includes a heating member, a first rotatable member in contact with the heating member and heated by the heating member, and a second rotatable member configured to form a nip portion with the first rotatable member, and
- wherein the second temperature detector detects the temperature of any of the heating member, the first rotatable member, and the second rotatable member.
Dependencies are inferred from the claim text.