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：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：US20230219776A1

公开(公告)日：2023-07-13

申请号：US18150705

申请日：2023-01-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： SHINGO IWAMI

IPC: B65H3/48 ,  B65H7/16

CPC classification number: B65H3/48 ,  B65H7/16 ,  B65H2801/06

Abstract: A sheet feeding apparatus includes a sheet supporting portion, a sheet feed portion, an air separation unit, and a control unit. The sheet supporting portion supports a sheet bundle. The sheet feed portion performs a sheet feeding operation by abutting against an uppermost sheet of the sheet bundle supported on the sheet supporting portion and feeding the uppermost sheet. The air separation unit performs an air blowing operation of blowing air to a side face of the sheet bundle supported on the sheet supporting portion and separating sheets. The control unit executes a mode of performing the air blowing operation by the air separation unit, stopping the air blowing operation, and then performing the sheet feeding operation by the sheet feed portion in a state where the air blowing operation is stopped.

公开(公告)号：US20240255887A1

公开(公告)日：2024-08-01

申请号：US18426944

申请日：2024-01-30

Applicant: CANON KABUSHIKI KAISHA

Inventor： YUMA INUI ,  SHINGO IWAMI ,  KOJI SUZUKI ,  KEISUKE MOGI

IPC: G03G15/00 ,  B65H37/00 ,  G03G21/20

CPC classification number: G03G15/6573 ,  B65H37/00 ,  G03G21/206 ,  B65H2301/5133 ,  G03G2215/00417

Abstract: A charge eliminating apparatus includes a conveyance path configured to convey a sheet with an image formed thereon by an image forming apparatus, a non-contact charge eliminating device having an ion generation unit configured to generate ions and a control unit configured to control the ion generation unit, the non-contact charge eliminating device being configured to remove charges from the sheet conveyed in the conveyance path in a non-contact state, a surrounding member configured to surround the control unit, a separating portion configured to separate a first space where the control unit is surrounded by the surrounding member and a second space where the ion generation unit is disposed, and a fan configured to generate an air flow in the first space.

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：US20230382669A1

公开(公告)日：2023-11-30

申请号：US18309961

申请日：2023-05-01

Applicant: CANON KABUSHIKI KAISHA

Inventor： SHINGO IWAMI ,  HIROTO KOGA ,  TOSHIFUMI ITABASHI ,  KOZO INOUE ,  HIROYUKI NAKAGAWA

IPC: B65H3/08

CPC classification number: B65H3/08 ,  B65H2405/114 ,  B65H2406/10

Abstract: An image forming apparatus includes an image forming portion, a tray rotatably provided on a side surface of a main assembly and including a stacking surface, a feeding portion; and a blowing fan mounted on the tray and generating air blown to a side end of a sheet in a sheet widthwise direction perpendicular to a feeding direction of the sheet by the feeding portion. The blowing fan is disposed on an opposite side to a side where the sheet is stacked on the stacking surface so that a position of at least a part of the blowing fan with respect to the sheet widthwise direction is overlapped with a position of the stacking surface with respect to the sheet widthwise direction.