公开(公告)号：US20200087100A1

公开(公告)日：2020-03-19

申请号：US16694247

申请日：2019-11-25

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Eiji FUKASAWA ,  Su Yeon KIM ,  Jae Hyun SHIN ,  Jung Kyu PARK

IPC: B65H45/18 ,  B65H45/04 ,  B65H29/12

Abstract: A sheet folding apparatus including a folding roller, a positioning member, a push member, and a shift member. The folding roller including a pair of rollers to rotatably engage with each other to form a folding nip. The positioning member to support a first end of a printing medium which is fed along a folding path and to arrange the printing medium in an initial folding location. The push member to move to an insertion location to push the printing medium on the folding path into the folding nip, and to move to a retreat location. The shift member, located at an exit of the folding nip, to selectively guide the printing medium to a guide path to return the printing medium having passed through the folding nip to the folding path, the guide path being provided around at least one of the pair of rollers.

公开(公告)号：US20200148499A1

公开(公告)日：2020-05-14

申请号：US16631085

申请日：2018-03-12

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jae Hyun SHIN ,  Jung Kyu PARK ,  Eiji FUKASAWA ,  Soo Bok LEE ,  DongSun JUNG

IPC: B65H45/18 ,  B65H45/16

Abstract: A sheet folding device includes a folding path, a folding roller including at least two rollers that engage with each other to form a folding nip and rotate, a folding blade to be movable to an insertion location at which at least one sheet of paper on the folding path is pushed into the folding nip, and to a retreat location escaping from the folding path, a guide member to move along with the folding blade, located at at least one side of the folding blade, and to push the paper towards the folding roller when the folding blade is moved to the insertion location and an elastic member to apply elasticity to the guide member towards the folding roller.