Canon Kabushiki Kaisha

Kaname Yamada

Masahito Ikeda

Takayuki Fukushima

Shinji Kawamura

A sheet feeding apparatus includes a supporting unit, a sheet feeding unit, a separation unit, a moving member, a first sensor, and a control unit. The moving member is configured to move by being pushed by the sheet supported by the supporting unit. The first sensor is configured to detect the sheet based on a position of the moving member. The second sensor is configured to detect the sheet at a position downstream of the separation unit in the feeding direction. The control unit is configured to determine an existence of the sheet supported by the supporting unit based on a detection result of the first sensor, and to control feeding timing at which the sheet feeding unit starts to feed the sheet based on detection results of the first sensor and the second sensor.

Sheet feeding apparatus

A sheet feeding device includes a first supporter supporting a first sheet, a first regulator regulating a position of the first sheet supported by the first supporter in a widthwise direction, a second supporter and a second regulator. The second supporter is provided above the first supporter and support a second sheet, of which a length in the widthwise direction is shorter than that of the first sheet, in a state in which the first supporter supports the first sheet. The second regulator regulates a position of the second sheet in the widthwise direction. A feeder feeds the first sheet and the second sheet in a feeding direction. As viewed in the feeding direction, the second regulator is disposed so that at least a part of the second regulator is overlapped with the first regulator.

Sheet feeding device, image reading device and image forming apparatus

An image reading apparatus for reading image information from a sheet includes a cover unit, a sheet feeding member, a conveying guide, and a reading unit including a transparent member and a reading portion. The cover unit is rotatable between a closed position where the cover unit forms a sheet conveying passage in cooperation with the conveying guide and an open position where the sheet conveying passage is open. In a state in which the cover unit is positioned in the closed position, the transparent member is exposed to an outside of the image reading apparatus by rotation of the conveying guide and the reading unit.

Image reading apparatus and image forming apparatus

A sheet conveying apparatus includes a sheet conveyance section, a roller pair unit, first and second guides, and a movable guide including an upstream portion extending upstream in the sheet conveying direction with respect to the nip portion and a downstream portion extending downstream in the sheet conveying direction with respect to the nip portion. The roller pair unit nips the sheet, warps the sheet in a case where a leading end of the sheet conveyed by the sheet conveyance section comes into contact with the roller pair unit, and conveys the sheet. The first guide opposes a first side of the sheet and guides the sheet. The second guide opposes a second side of the sheet. The movable guide opposes the first side of the sheet and moves in such a manner that the downstream portion of the movable guide moves closer to or away from the second guide.

Sheet conveying apparatus, image reading apparatus, and image forming apparatus

A sheet feeding apparatus includes a tray on which a sheet is to be placed, a feeding roller, a separating portion that forms a separation nip to separate sheets, a rotating member provided between the feeding position and the separation nip in a sheet conveying direction, a first detecting sensor, a second detecting sensor, a driving source, and a control portion. The rotating member rotates by being pushed by a leading end of the sheet. The control portion detects a position of a trailing end of a preceding sheet separated by the separating portion by using the second detecting sensor, and detects presence or absence of a subsequent sheet placed on the tray by using the first detecting sensor. Based on detection results of the first detecting sensor and second detecting sensor, the control portion controls the driving source such that the feeding roller starts to feed the subsequent sheet.

Sheet feeding apparatus, image reading apparatus, and image forming apparatus

An image reading device includes a reading unit to read a sheet image and a turning unit to turn relative to the reading unit. The turning unit includes a conveyance roller to convey a sheet to a reading position, a discharged sheet stacking tray having the read sheet, a discharge roller to discharge the sheet to the discharged sheet stacking tray, and a communication unit to wirelessly receive data from outside the image reading device. Where the sheet is stacked, the discharged sheet stacking tray includes a first region and a second region downstream of the first region. The first region has a sheet regulating portion at a front side of the first region located higher than a bottom face where the sheet is stacked, and the second region does not have the sheet regulating portion. A reading part to read communication unit information is disposed overlapping the second region.

Image reading device and image forming apparatus

An image reading apparatus includes a sheet conveyance unit conveying a sheet through a sheet conveyance path, a cover member supported by the sheet conveyance unit, the cover member being openable with respect to the sheet conveyance unit, and an image reading portion to read an image of the sheet conveyed by the sheet conveyance unit. In addition, a manipulator portion is manipulated to adjust a position of the image reading portion. The sheet conveyance unit can convey a sheet in such a manner that the sheet passes through the sheet conveyance path and the manipulator portion is covered by the cover member in a case where the cover member is positioned at a closed position, and both the sheet conveyance path and the manipulator portion are exposed to outside of the sheet conveyance unit in a case where the cover member is positioned at an open position.

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Nagareyama, Japan

Kaname Yamada