公开(公告)号：US20180017912A1

公开(公告)日：2018-01-18

申请号：US15401513

申请日：2017-01-09

Applicant: S-PRINTING SOLUTION CO., LTD.

Inventor： Seung-jun LEE

IPC: G03G15/20

CPC classification number: G03G15/2028 ,  G03G15/2053 ,  G03G2215/2035

Abstract: A belt type fixing apparatus includes a fixing belt, a fixing roller disposed to face the fixing belt, a nip forming member that is disposed inside the fixing belt and presses the fixing belt to the fixing roller to form a fixing nip, first and second regulating surfaces that are provided at opposite ends of the nip forming member and restrict an axial movement of the fixing belt, and first and second guide surfaces that are provided inside the fixing belt and guide rotation of the fixing belt. The first regulating surface and the second regulating surface include at least one regulating step portion which is not in contact with one end of the fixing belt, respectively. The first guide surface and the second guide surface include at least one guide step portion which is not in contact with an inner surface of the fixing belt, and the at least one regulating step portion and the guide step portion are formed to be staggered from each other.

公开(公告)号：US20180284668A1

公开(公告)日：2018-10-04

申请号：US15646534

申请日：2017-07-11

Applicant: S-Printing Solution Co., Ltd.

Inventor： Sun-hyung LEE ,  Sung-woo KANG ,  Ji-su PARK ,  Sea-chul BAE ,  Gil-jae YOU ,  Seung-jun LEE ,  Young-hoon HAN

IPC: G03G15/20

CPC classification number: G03G15/2028 ,  G03G21/1647

Abstract: A fusing apparatus and an image forming apparatus includes: a fusing belt; a pressing roller pressed to the fusing belt to form a nib part and rotating the fusing belt; a bushing guiding an edge of the fusing belt; and a ring member rotatably coupled to the bushing and in contact with the edge of the fusing belt that rotates to rotate together with the fusing belt, wherein a first frictional force generated between the edge of the fusing belt and the ring member is larger than a second frictional force generated between the bushing and the ring member.