JP2020050487A5 - - Google Patents

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JP2020050487A5
JP2020050487A5 JP2018182434A JP2018182434A JP2020050487A5 JP 2020050487 A5 JP2020050487 A5 JP 2020050487A5 JP 2018182434 A JP2018182434 A JP 2018182434A JP 2018182434 A JP2018182434 A JP 2018182434A JP 2020050487 A5 JP2020050487 A5 JP 2020050487A5
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Prior art keywords
sheet
feeding
sheet feeding
transport roller
feeding device
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JP2018182434A
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Japanese (ja)
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JP7237505B2 (en
JP2020050487A (en
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Priority to JP2018182434A priority Critical patent/JP7237505B2/en
Priority claimed from JP2018182434A external-priority patent/JP7237505B2/en
Publication of JP2020050487A publication Critical patent/JP2020050487A/en
Publication of JP2020050487A5 publication Critical patent/JP2020050487A5/ja
Priority to JP2023028331A priority patent/JP7487365B2/en
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Claims (9)

シートが積載されるシート積載部と、
前記シート積載部からシートを給送方向に給送するシート給送手段と、
前記シート給送手段によって給送されるシートを第１検知位置において検知する第１検知手段と、
前記給送方向に直交する幅方向において前記第１検知位置より外側で、かつ、前記給送方向において前記第１検知位置と異なる第２検知位置においてシートを検知する第２検知手段と、
前記シート積載部に積載されたシートの前記幅方向の長さに関する情報を取得するサイズ取得手段と、
前記サイズ取得手段によって取得した情報に基づいて前記シート給送手段を制御する制御手段と、を備え、
前記制御手段は、
前記シート給送手段が先行シートの給送を開始した後、前記第１検知手段及び前記第２検知手段の少なくとも一方がシートを検知している状態からシートを検知していない状態に変化した場合に後続シートの給送を開始する第１モードと、
前記シート給送手段が先行シートの給送を開始した後、前記第２検知手段の検知結果に関わらず、前記第１検知手段がシートを検知している状態からシートを検知していない状態に変化した場合に後続シートの給送を開始する第２モードと、を含む複数のモードのいずれかを実行可能であり、
第１サイズのシートを給送する場合に前記第１モードを実行し、前記第１サイズのシートより前記幅方向の長さが短い第２サイズのシートを給送する場合に前記第２モードを実行する、
ことを特徴とするシート給送装置。 The seat loading section where the seats are loaded and
A sheet feeding means for feeding a sheet from the seat loading portion in the feeding direction, and a sheet feeding means.
The first detecting means for detecting the sheet fed by the sheet feeding means at the first detecting position, and
A second detection means that detects the sheet at a second detection position that is outside the first detection position in the width direction orthogonal to the feeding direction and different from the first detection position in the feeding direction.
A size acquisition means for acquiring information on the length of the sheet loaded on the sheet loading unit in the width direction, and
A control means for controlling the sheet feeding means based on the information acquired by the size acquisition means is provided.
The control means
When at least one of the first detecting means and the second detecting means changes from a state in which the sheet is detected to a state in which the sheet is not detected after the sheet feeding means starts feeding the preceding sheet. In the first mode to start feeding the subsequent seats,
After the sheet feeding means starts feeding the preceding sheet, regardless of the detection result of the second detecting means, the state in which the first detecting means detects the sheet is changed to the state in which the sheet is not detected. It is possible to execute one of a plurality of modes including a second mode in which the feeding of the succeeding sheet is started when the change occurs.
The first mode is executed when the first size sheet is fed, and the second mode is executed when the second size sheet whose length in the width direction is shorter than that of the first size sheet is fed. Run,
A sheet feeding device characterized by that. 前記シート積載部に前記幅方向に移動可能に設けられ、前記シート積載部に積載されたシートの前記幅方向の位置を規制する規制板をさらに備え、
前記サイズ取得手段は、前記規制板の位置を検知するセンサである、
ことを特徴とする請求項１記載のシート給送装置。 The seat loading portion is further provided with a regulating plate that is movably provided in the width direction and regulates the position of the seat loaded on the seat loading portion in the width direction.
The size acquisition means is a sensor that detects the position of the regulation plate.
The sheet feeding device according to claim 1, wherein the sheet feeding device is characterized in that. 前記シート給送手段は、シートを搬送する搬送ローラと、前記搬送ローラに当接し、前記搬送ローラによって搬送されるシートを分離する分離部材とを含み、
前記第２検知手段は、前記幅方向から見て前記搬送ローラ及び前記分離部材の少なくとも一方と重なる位置にある、
ことを特徴とする請求項１又は２に記載のシート給送装置。 The sheet feeding means includes a transport roller for transporting the sheet and a separating member that comes into contact with the transport roller and separates the sheets transported by the transport roller.
The second detecting means is located at a position where it overlaps with at least one of the transport roller and the separating member when viewed from the width direction.
The sheet feeding device according to claim 1 or 2. 前記シート給送手段は、前記給送方向において前記搬送ローラより上流に設けられ、前記シート積載部から前記搬送ローラへ向けてシートを繰り出す繰り出しローラを含み、
前記第１検知位置は、前記給送方向において前記搬送ローラ及び前記分離部材のニップ位置より下流に設定され、前記第２検知位置は前記ニップ位置より上流に設定される、
ことを特徴とする請求項３に記載のシート給送装置。 The sheet feeding means includes a feeding roller provided upstream of the transport roller in the feeding direction and feeding the sheet from the sheet loading portion toward the transport roller.
The first detection position is set downstream from the nip position of the transport roller and the separation member in the feeding direction, and the second detection position is set upstream of the nip position.
The sheet feeding device according to claim 3, wherein the sheet feeding device is characterized in that. 前記シート給送手段は、シートを搬送する搬送ローラと、前記搬送ローラに当接し、前記搬送ローラによって搬送されるシートを分離する分離部材と、前記給送方向において前記搬送ローラより上流に設けられ、前記シート積載部から前記搬送ローラへ向けてシートを繰り出す繰り出しローラと、を含み、 The sheet feeding means is provided with a transport roller for transporting the sheet, a separating member that comes into contact with the transport roller and separates the sheet transported by the transport roller, and upstream from the transport roller in the feeding direction. , A feeding roller for feeding the sheet from the sheet loading portion toward the transport roller, and the like.
前記第１検知位置は、前記給送方向において前記搬送ローラ及び前記分離部材のニップ位置より下流に設定され、前記第２検知位置は前記ニップ位置より上流に設定される、 The first detection position is set downstream from the nip position of the transport roller and the separation member in the feeding direction, and the second detection position is set upstream of the nip position.
ことを特徴とする請求項１又は２に記載のシート給送装置。 The sheet feeding device according to claim 1 or 2. 前記第１検知位置は、前記幅方向に関して、シート給送装置が給送可能なシートの中で前記幅方向の長さが最も短いシートが通過する位置に設定される、
ことを特徴とする請求項１乃至５のいずれか１項に記載のシート給送装置。 The first detection position is set at a position in the width direction through which the sheet having the shortest length in the width direction passes among the sheets that can be fed by the sheet feeding device.
The sheet feeding device according to any one of claims 1 to 5 , wherein the sheet feeding device is characterized. 前記シート給送手段からシートを受け取って搬送するシート搬送手段を備え、
前記シート搬送手段が先行シートを搬送し、かつ、前記シート給送手段が後続シートを搬送している状態において、前記シート搬送手段の搬送速度が前記シート給送手段の搬送速度より大きく設定されている、
ことを特徴とする請求項１乃至６のいずれか１項に記載のシート給送装置。 A sheet transporting means for receiving and transporting a sheet from the sheet feeding means is provided.
In a state where the sheet transporting means is transporting the preceding sheet and the sheet feeding means is transporting the succeeding sheet, the transporting speed of the sheet transporting means is set to be higher than the transporting speed of the sheet feeding means. Yes,
The sheet feeding device according to any one of claims 1 to 6 , wherein the sheet feeding device is characterized. 請求項１乃至７のいずれか１項に記載のシート給送装置と、
前記シート給送装置によって給送されるシートから画像情報を読み取る読取手段と、を備えた、
ことを特徴とする画像読取装置。 The sheet feeding device according to any one of claims 1 to 7.
A reading means for reading image information from a sheet fed by the sheet feeding device.
An image reader characterized by this. 請求項１乃至７のいずれか１項に記載のシート給送装置と、
シートに画像を形成する画像形成手段と、を備えた、
ことを特徴とする画像形成装置。 The sheet feeding device according to any one of claims 1 to 7.
Equipped with an image forming means for forming an image on a sheet,
An image forming apparatus characterized in that.
JP2018182434A 2018-09-27 2018-09-27 Sheet feeding device, image reading device and image forming device Active JP7237505B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2018182434A JP7237505B2 (en) 2018-09-27 2018-09-27 Sheet feeding device, image reading device and image forming device
JP2023028331A JP7487365B2 (en) 2018-09-27 2023-02-27 SHEET FEEDING DEVICE, IMAGE READING DEVICE, AND IMAGE FORMING APPARATUS

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JP2018182434A JP7237505B2 (en) 2018-09-27 2018-09-27 Sheet feeding device, image reading device and image forming device

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JP2020050487A JP2020050487A (en) 2020-04-02
JP2020050487A5 true JP2020050487A5 (en) 2021-11-04
JP7237505B2 JP7237505B2 (en) 2023-03-13

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4057859B2 (en) 2002-08-09 2008-03-05 株式会社東芝 Paper sheet take-out device
JP5514761B2 (en) 2011-03-29 2014-06-04 京セラドキュメントソリューションズ株式会社 Sheet feeding apparatus and image forming apparatus
JP6666025B2 (en) 2015-06-10 2020-03-13 キヤノン株式会社 Sheet feeding apparatus, reading apparatus using the same, and image forming apparatus

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