Fixing device and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorsYutaka Naitoh, Yoshikazu Yamazoe, Shigeo Nanno, Osamu Saito, Takuya Etoh
Life of this patent
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Abstract
A fixing device includes a pair of first frames that support an axis of each of a fixing roller and a pressing roller and a pair of second frames arranged in parallel to an axial direction of the fixing roller to connect the first frames to each other. The second frames include cover portions that cover an upper peripheral surface and a lower peripheral surface of the rollers. A coupling member couples the cover portions to each other and has a bridge structure between the cover portions.
Claims16
A fixing device comprising:
- a fixing roller that applies heat to a recording medium on a conveyor path;
- a pressing roller that is opposed to the fixing roller across the conveyor path and extends parallel to an axial direction of the fixing roller;
- a casing that houses the fixing roller and the pressing roller in a rotatable manner;
- a pair of first frames that support an axis of each of the fixing roller and the pressing roller;
- a pair of second frames arranged in parallel to the axial direction such that the first frames are connected to each other via the second frames;
- a first cover portion that is arranged on one of the second frames and covers an upper peripheral surface of at least one of the fixing roller and the pressing roller;
- a second cover portion that is arranged on another one of the second frames and covers a lower peripheral surface of at least one of the fixing roller and the pressing roller;
- and
- a coupling member that couples the first cover portion to the second cover portion and has a bridge structure from the first cover portion to the second cover portion.
An image forming apparatus comprising a fixing device including
- a fixing roller that applies heat to a recording medium on a conveyor path;
- a pressing roller that is opposed to the fixing roller across the conveyor path and extends parallel to an axial direction of the fixing roller;
- a casing that houses the fixing roller and the pressing roller in a rotatable manner;
- a pair of first frames that support an axis of each of the fixing roller and the pressing roller;
- a pair of second frames arranged in parallel to the axial direction such that the first frames are connected to each other via the second frames;
- a first cover portion that is arranged on one of the second frames and covers an upper peripheral surface of at least one of the fixing roller and the pressing roller;
- a second cover portion that is arranged on another one of the second frames and covers a lower peripheral surface of at least one of the fixing roller and the pressing roller;
- and
- a coupling member that couples the first cover portion to the second cover portion and has a bridge structure from the first cover portion to the second cover portion.
Dependencies are inferred from the claim text.