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：US20230254424A1

公开(公告)日：2023-08-10

申请号：US18161727

申请日：2023-01-30

Applicant: CANON KABUSHIKI KAISHA

Inventor： KEISUKE MOGI ,  YUMA INUI

IPC: H04N1/00

CPC classification number: H04N1/00724 ,  H04N1/00615 ,  H04N1/00689 ,  H04N1/00692 ,  H04N1/00726 ,  H04N1/00737 ,  H04N1/00716

Abstract: An identification apparatus includes a guide member defining a guide path, a scanning portion that scans the sheet inserted in the guide path, a first detection portion disposed upstream of the scanning portion in an insertion direction of the sheet in the guide path that detects presence/absence of the sheet, and a second detection portion disposed downstream of the scanning portion in the insertion direction in the guide path and detects presence/absence of the sheet. The identification apparatus is configured to start measurement of a surface property of the sheet by the scanning portion in response to a change in a detection result of one of the first detection portion or the second detection portion, and complete the measurement in response to a change in a detection result whichever of the first detection portion or the second detection portion not used in determining the start of the measurement.

公开(公告)号：US20240288814A1

公开(公告)日：2024-08-29

申请号：US18655156

申请日：2024-05-03

Applicant: CANON KABUSHIKI KAISHA

Inventor： KEISUKE MOGI ,  HISASHI TSUKIJIMA ,  YOSHIYA NUMATA ,  MASAKI MAENO

IPC: G03G15/00 ,  G03G15/16

CPC classification number: G03G15/5054 ,  G03G15/1615

Abstract: The image forming apparatus forms a test chart on an image bearing member, the test chart including a plurality of test images including a first test image of a first density and a second test image formed at a position different from a position of the first test image in a conveying direction of a recording medium, the second test image having a second density different from the first density. The image forming apparatus transfers the test chart to the recording medium with a transfer roller and controls the rotation velocity of the transfer roller when the recording medium passes through a transfer portion based on a result of reading the test chart on the recording medium with a reading unit.

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：US20240357046A1

公开(公告)日：2024-10-24

申请号：US18763885

申请日：2024-07-03

Applicant: CANON KABUSHIKI KAISHA

Inventor： KEISUKE MOGI ,  YUMA INUI

IPC: H04N1/00 ,  G03G15/00

CPC classification number: H04N1/00737 ,  G03G15/502 ,  G03G15/5025 ,  G03G15/5029 ,  G03G15/60 ,  G03G15/607 ,  G03G2215/00616 ,  G03G2215/00637 ,  G03G2215/00738 ,  G03G2215/00742 ,  G03G2215/00751

Abstract: An identification apparatus includes a guide member defining a guide path, a scanning portion that scans the sheet inserted in the guide path, a first detection portion disposed upstream of the scanning portion in an insertion direction of the sheet in the guide path that detects presence/absence of the sheet, and a second detection portion disposed downstream of the scanning portion in the insertion direction in the guide path and detects presence/absence of the sheet. The identification apparatus is configured to start measurement of a surface property of the sheet by the scanning portion in response to a change in a detection result of one of the first detection portion or the second detection portion, and complete the measurement in response to a change in a detection result whichever of the first detection portion or the second detection portion not used in determining the start of the measurement.

公开(公告)号：US20230236535A1

公开(公告)日：2023-07-27

申请号：US18190688

申请日：2023-03-27

Applicant: CANON KABUSHIKI KAISHA

Inventor： KEISUKE MOGI ,  HISASHI TSUKIJIMA ,  YOSHIYA NUMATA ,  MASAKI MAENO

IPC: G03G15/00 ,  G03G15/16

CPC classification number: G03G15/5054 ,  G03G15/1615

Abstract: The image forming apparatus forms a test chart on an image bearing member, the test chart including a plurality of test images including a first test image of a first density and a second test image formed at a position different from a position of the first test image in a conveying direction of a recording medium, the second test image having a second density different from the first density. The image forming apparatus transfers the test chart to the recording medium with a transfer roller and controls the rotation velocity of the transfer roller when the recording medium passes through a transfer portion based on a result of reading the test chart on the recording medium with a reading unit.