公开(公告)号：US20240393711A1

公开(公告)日：2024-11-28

申请号：US18664415

申请日：2024-05-15

Applicant: CANON KABUSHIKI KAISHA

Inventor： TATSUYOSHI SAKAMOTO ,  TAKAOMI UEZONO

IPC: G03G15/041 ,  B41J2/47 ,  B42C1/12 ,  G03G15/00 ,  G03G15/01 ,  G03G15/04

Abstract: A light source includes a light emitting element, and an optical system that directs light output from the light emitting element to a surface of a photosensitive member. An irradiation amount of light for forming a second electrostatic latent image is larger than an irradiation amount of light for forming a first electrostatic latent image. A position at which a propagation efficiency of light peaks in a scanning direction of the light is located between a center of an image height of the optical system and a surface area in which the second electrostatic latent image is formed out of the surface of the photosensitive member.

公开(公告)号：US20240094667A1

公开(公告)日：2024-03-21

申请号：US18468905

申请日：2023-09-18

Applicant: Canon Kabushiki Kaisha

Inventor： TAKAOMI UEZONO ,  MINORU HAYASAKI ,  TAKAAKI TSURUYA

IPC: G03G15/20

CPC classification number: G03G15/2057

Abstract: A fixing unit includes a rotary member that includes a conductive layer, a magnetic core inserted in an interior space of the rotary member, and an energizing coil that includes a conductor and that is wound helically around a circumference of the magnetic core. In a case where a distance between a first cross section of the conductor in a plane along the longitudinal direction and a second cross section of the conductor in the plane and adjacent to the first cross section in the longitudinal direction is L1 (mm), and a distance between the conductor and the magnetic core in a radial direction orthogonal to the helical axis is L2 (mm), following inequalities are satisfied, L1>0.1 and 0.1

公开(公告)号：US20240393726A1

公开(公告)日：2024-11-28

申请号：US18669763

申请日：2024-05-21

Applicant: CANON KABUSHIKI KAISHA

Inventor： HIROSHI KATAOKA ,  TAKAOMI UEZONO ,  TAKU WATANABE

IPC: G03G15/00

Abstract: An image forming apparatus includes an image forming portion, and a bonding portion including a pressurizing member and configured to bond sheets together. The bonding portion is configured to, in a state in which a succeeding sheet is stacked on a sheet stack that has been bonded in a previous bonding operation, perform a next bonding operation to bond a first surface of an uppermost sheet of the bonded sheet stack to a second surface of the succeeding sheet opposing the first surface. An amount of bonding toner that the image forming portion applies on the first surface per unit area of the first surface is smaller than an amount of the bonding toner that the image forming portion applies on the second surface per unit area of the second surface.