公开(公告)号：US20240255863A1

公开(公告)日：2024-08-01

申请号：US18424608

申请日：2024-01-26

Applicant: CANON KABUSHIKI KAISHA

Inventor： KOJI SUZUKI ,  SHINGO IWAMI ,  RYO AIHARA ,  KAZUYA NUMATA

IPC: G03G15/02 ,  G03G15/20

CPC classification number: G03G15/0266 ,  G03G15/2014

Abstract: A static elimination apparatus includes a conveyance unit to convey a sheet along a conveyance path, a non-contact type static elimination unit to perform static elimination on the sheet without being in contact with the sheet, and first and second guide members. The first guide member includes a contact portion to guide the sheet and a plurality of openings arranged in a sheet widthwise direction perpendicular to a sheet conveyance direction to expose the non-contact type static elimination unit to the conveyance path. The second guide member is disposed to face the first guide member and forms a part of the conveyance path together with the first guide member. The contact portion includes an inclined portion upstream in the sheet conveyance direction. The inclined portion is inclined so that a distance to the second guide member decreases downstream in the sheet conveyance direction.

公开(公告)号：US20240255884A1

公开(公告)日：2024-08-01

申请号：US18424583

申请日：2024-01-26

Applicant: CANON KABUSHIKI KAISHA

Inventor： RYO AIHARA ,  SHIN ONO ,  YUTAKA KAKEHI ,  YASUHARU CHIYODA ,  KEISUKE MOGI ,  SHINGO IWAMI ,  RYOSUKE TSURUGA

IPC: G03G15/00 ,  B65H29/12

CPC classification number: G03G15/6573 ,  B65H29/125 ,  G03G15/5037 ,  B65H2301/5133

Abstract: A charge eliminating apparatus configured to remove charges from a sheet on which an image is formed by a printing apparatus, includes a charge eliminating roller pair including a first charge eliminating roller and a second charge eliminating roller configured to form a nip portion together with the first charge eliminating roller, the charge eliminating roller pair being configured to remove the charges from the sheet in a state of contacting the sheet at the nip portion, a first setting unit configured to set a value of a voltage applied to the charge eliminating roller pair, and a second setting unit configured to set whether to apply the voltage to the charge eliminating roller pair, wherein the second setting unit is configured to set whether to apply the voltage to the charge eliminating roller pair without changing the value of the voltage set by the first setting unit.

公开(公告)号：US20240255883A1

公开(公告)日：2024-08-01

申请号：US18424258

申请日：2024-01-26

Applicant: CANON KABUSHIKI KAISHA

Inventor： SHINGO IWAMI ,  RYO AIHARA ,  RYO NAKANISHI

IPC: G03G15/00 ,  B65H29/12

CPC classification number: G03G15/6573 ,  B65H29/12 ,  B65H2301/5133 ,  G03G2215/00421

Abstract: A static elimination apparatus includes a conveyance unit configured to convey a sheet along a conveyance path, a non-contact static elimination unit arranged above the conveyance path and configured to eliminate static electricity from the sheet in a non-contact state, an upper side guide member arranged to face an upper surface of the sheet and configured to form part of the conveyance path, a lower side guide member arranged to face a lower surface of the sheet and configured to form the conveyance path together with the upper side guide member, a lower side unit in which the lower side guide member is arranged, and an upper side unit in which the non-contact static elimination unit is arranged and that is configured to be rotated upward with respect to the lower side unit to make at least part of the conveyance path exposed.

公开(公告)号：US20240255885A1

公开(公告)日：2024-08-01

申请号：US18424616

申请日：2024-01-26

Applicant: CANON KABUSHIKI KAISHA

Inventor： KEISUKE MOGI ,  SHINGO IWAMI ,  RYO AIHARA ,  TAICHI UCHIDA

IPC: G03G15/00 ,  B65H5/06

CPC classification number: G03G15/6573 ,  B65H5/064 ,  B65H2301/5133

Abstract: A static elimination apparatus includes a conveyance unit to convey a sheet along a conveyance path, a non-contact static elimination unit to eliminate static from the sheet, a first guide member including a contact portion to guide the sheet, and a plurality of openings arranged next to each other in a width direction. The plurality of openings expose the non-contact static elimination unit to a conveyance path. The contact portion includes a plurality of first ribs arranged on one side with respect to a conveyance center, and a plurality of second ribs arranged on the other side with respect to the conveyance center. The plurality of first ribs and the plurality of second ribs are inclined relative to the sheet conveyance direction so that the further downstream in the sheet conveyance direction each rib is, the greater a distance between each rib and the conveyance center is.

公开(公告)号：US20230221665A1

公开(公告)日：2023-07-13

申请号：US18145675

申请日：2022-12-22

Applicant: CANON KABUSHIKI KAISHA

Inventor： RYO AIHARA ,  HISASHI TSUKIJIMA

IPC: G03G15/20

CPC classification number: G03G15/2053

Abstract: An image forming apparatus includes a transfer portion to transfer a toner image to a recording material, a fixing portion having a heating unit and a cylindrical rotary member and to fix the toner image to the recording material, a fixing drive portion to drive the cylindrical rotary member, and a controller. In a case in which images are formed on a plurality of recording materials, the controller controls the fixing drive portion based on a time period from a time when a trailing edge of a preceding recording material passes through the fixing portion to a time when a leading edge of a subsequent recording material passes through the fixing portion so that a second rotation speed of the cylindrical rotary member when conveying the subsequent recording material becomes lower than a first rotation speed of the cylindrical rotary member when conveying the preceding recording material.