Fixing apparatus having a bypass transport path and image forming apparatus including the fixing apparatus
AssigneeCanon Kabushiki Kaisha
InventorYoshimitsu Nakane
Life of this patent
Estimating the term…
Abstract
A fixing apparatus includes a plurality of fixing devices that fix a toner image on a sheet, a bypass transport path which bypasses at least one fixing device among the plurality of fixing devices and which transports the sheet, a main transport path which transports a sheet via the fixing device that the sheet transported by the bypass transport path bypasses, and a heat insulator that prevents heat generated from the fixing device that the sheet transported by the bypass transport path bypasses from being transmitted to the bypass transport path.
Claims19
A fixing apparatus comprising:
- two fixing devices that fix a toner image on a sheet using heat;
- a main transport path that transports the sheet via the two fixing devices;
- a bypass transport path that branches from the main transport path and transports the sheet so that the sheet bypasses one of the two fixing devices;
- and
- a fan that moves air between the bypass transport path and the fixing device that the sheet transported by the bypass transport path bypasses,
- wherein a transporting direction of a part of the main transport path in which the fixing device that the sheet transported by the bypass transport path bypasses is disposed and a transporting direction of the bypass transport path are substantially the same.
A fixing apparatus comprising:
- two fixing devices that fix a toner image on a sheet using heat;
- a main transport path that transports the sheet via the two fixing devices;
- a bypass transport path that branches from the main transport path and transports the sheet so that the sheet bypasses one of the two fixing devices;
- and
- a heat insulator that prevents heat generated from the fixing device that the sheet transported by the bypass transport path bypasses from being transmitted to the bypass transport path.
A fixing apparatus comprising:
- two fixing devices that fix a toner image on a sheet using heat;
- a main transport path that transports the sheet via the two fixing devices;
- a bypass transport path that branches from the main transport path and transports the sheet so that the sheet bypasses one of the two fixing devices;
- a fan that moves air between the bypass transport path and the fixing device that the sheet transported by the bypass transport path bypasses;
- and
- a transport guide which forms the bypass transport path and serves as a portion of a duct for allowing an air stream generated by the fan to pass through.
A fixing apparatus comprising:
- two fixing devices that fix a toner image on a sheet using heat;
- a main transport path that transports the sheet via the two fixing devices;
- a bypass transport path that branches from the main transport path and transports the sheet so that the sheet bypasses one of the two fixing devices;
- and
- a fan that moves air between the bypass transport path and the fixing device that the sheet transported by the bypass transport path bypasses;
- wherein the bypass transport path branches from the main transport path on an upstream side of the fixing device that the sheet transported by the bypass transport path bypasses and merges with the main transport path on a downstream side of the fixing device that the sheet transported by the bypass transport path bypasses.
Dependencies are inferred from the claim text.