公开(公告)号：US10551775B2

公开(公告)日：2020-02-04

申请号：US16138467

申请日：2018-09-21

Applicant: HP PRINTING KOREA 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 ,  G03G21/16

Abstract: A fusing apparatus for an image forming apparatus includes a fusing belt which rotates, a bushing guiding the fusing belt, a ring member rotatably coupled to the bushing and in contact with the fusing belt so as to rotate together with the fusing belt, and a sliding guide member, provided between the ring member and the sidewall of the bushing and at least partially disposed above a central axis of the fusing belt. The sliding guide member slidably supports the ring member and protrudes from the sidewall of the bushing such that a continuous gap is provided from a bottom of the sliding guide member to a bottom of the sidewall of the bushing.

公开(公告)号：US10324402B2

公开(公告)日：2019-06-18

申请号：US15401513

申请日：2017-01-09

Applicant: HP PRINTING KOREA CO., LTD.

Inventor： Seung-jun Lee

IPC: G03G15/20

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.