Fusing unit and image forming apparatus having the same
View Patent ↗A fusing unit and an image forming apparatus includes a housing, a fusing belt disposed inside the housing and a pressing roller forming a nip with the fusing belt, and a receiving portion disposed to face the fusing belt at a position spaced downwardly apart from the fusing belt in a gravity direction.
1. A fusing apparatus, comprising:
a housing;
a fusing belt disposed inside the housing;
a pressing roller forming a nip with the fusing belt; and
a receiving portion disposed to face the fusing belt at a position corresponding to both ends of the fusing belt and spaced downwardly apart from the fusing belt in a gravity direction.
2. The fusing apparatus of claim 1 , wherein the receiving portion includes a first receiving portion to receive lubricant that flows from a first end of the fusing belt and a second receiving portion to receive lubricant that flows from a second end of the fusing belt.
3. The fusing apparatus of claim 1 , wherein the receiving portion includes an impregnation member.
4. The fusing apparatus of claim 3 , wherein the impregnation member includes a fabric material.
5. The fusing apparatus of claim 4 , wherein the fabric is felt.
6. A fusing apparatus, comprising:
a housing;
a fusing belt disposed inside the housing;
a pressing roller forming a nip with the fusing belt; and
a receiving portion disposed to face the fusing belt at a position spaced downwardly apart from the fusing belt in a gravity direction, the receiving portion including an impregnation member; and
a mounting groove formed on a surface of the housing, the impregnation member being mounted in the mounting groove.
7. A fusing apparatus, comprising:
a housing;
a fusing belt disposed inside the housing;
a pressing roller forming a nip with the fusing belt;
a support frame configured to support the fusing belt;
a guide bushing disposed between the fusing belt and the support frame, wherein a first side of the guide bushing is to contact the fusing belt and a second side of the guide bushing is to contact the support frame; and
a bucket disposed to face the fusing belt at a position spaced downwardly apart from the fusing belt in a gravity direction and extending below the support frame in the gravity direction to a distance apart from the fusing belt, and having a space formed at a position corresponding to an end of the fusing belt to receive fluid.
8. The fusing apparatus of claim 7 , wherein each of the support frame, the guide bushing, and the bucket is provided as a pair.
9. The fusing apparatus of claim 7 , wherein an impregnation member is disposed inside the bucket.
10. The fusing apparatus of claim 9 , wherein the impregnation member includes a fabric material.
11. The fusing apparatus of claim 10 , wherein the fabric is felt.
12. The fusing apparatus of claim 7 , further comprising a guide groove formed on a surface of the support frame,
wherein a first end of the guide groove is opened toward at least one of the fusing belt and the guide bushing and a second end of the guide groove is connected to the bucket.
13. The fusing apparatus of claim 12 , wherein the first end of the guide groove is wider than the second end of the guide groove.
14. A fusing apparatus, comprising:
a housing;
a fusing belt disposed inside the housing;
a pressing roller forming a nip with the fusing belt;
a receiving portion disposed to face the fusing belt at a position spaced downwardly apart from the fusing belt in a gravity direction;
a pressing bracket disposed inside the fusing belt; and
a lubricant applied between the pressing bracket and the fusing belt.
15. The fusing apparatus of claim 14 , wherein the lubricant comprises a base oil and a gelling agent.
16. An image forming apparatus, comprising:
a main body; and
a fusing apparatus disposed inside the main body, the fusing apparatus including:
a housing,
a fusing belt disposed inside the housing,
a pressing roller forming a nip with the fusing belt, and
a receiving portion disposed to face the fusing belt at a position corresponding to both ends of the fusing belt and spaced downwardly apart from the fusing belt in a gravity direction.
17. The image forming apparatus of claim 16 , wherein the receiving portion includes a first receiving portion to receive lubricant flowing from a first end of the fusing belt and a second receiving portion to receive lubricant flowing from a second end of the fusing belt.
18. The image forming apparatus of claim 16 , wherein the receiving portion includes an impregnation member.
19. An image forming apparatus, comprising:
a main body; and
a fusing apparatus disposed inside the main body, the fusing apparatus including:
a housing,
a fusing belt disposed inside the housing,
a pressing roller forming a nip with the fusing belt,
a support frame to support the fusing belt;
a guide bushing disposed between the fusing belt and the support frame, wherein a first side of the guide bushing is to contact the fusing belt and a second side of the guide bushing is to contact the support frame, and
a bucket disposed to face the fusing belt at a position spaced downwardly apart from the fusing belt in a gravity direction and extending below the support frame in the gravity direction to a distance apart from the fusing belt, and having a space formed at a position corresponding to an of the fusing belt to receive fluid.
20. The image forming apparatus of claim 19 , further comprising a guide groove formed on a surface of the support frame,
wherein a first end of the guide groove is opened toward at least one of the fusing belt and the guide bushing and a second end of the guide groove is connected to the bucket.