PAPER CONVEYING DEVICE AND IMAGE FORMING DEVICE

• Main Author: OURA JUNICHI
• Format: Patent
• Language: English; Japanese
• Published: 18.07.2019
• Subjects: CINEMATOGRAPHY; CONVEYING; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; HOLOGRAPHY; MAGNETOGRAPHY; PACKING; PERFORMING OPERATIONS; PHOTOGRAPHY; PHYSICS; STORING; TRANSPORTING

To provide a paper conveying device which corrects displacement of the width direction of paper accurately.SOLUTION: A paper conveying device comprises: a roller member which nips paper at a predetermined position and carries the paper by rotating; a driving part which drives the roller member in the width direction; an edge sensor which detects an edge of the paper in an edge detection position which is a position on the lower side of the paper conveying direction compared with the predetermined position and is a position on one side of the width direction; and a control part which stops rotation of the roller member and corrects a position of the width direction of the paper on the basis of an output value of the edge sensor when a conveying amount of the paper from the predetermined position has reached an object conveying amount. The control part increases the object conveying amount when the paper is the special paper compared with a case that the paper is not the special paper.SELECTED DRAWING: Figure 10 【課題】用紙の幅方向の位置ズレを正確に補正する。【解決手段】用紙搬送装置は、所定位置で用紙をニップし、回転することにより、用紙を搬送するローラー部材と、ローラー部材を幅方向に駆動する駆動部と、所定位置よりも用紙搬送方向の下流側の位置であって幅方向の一方側の位置であるエッジ検知位置において用紙のエッジを検知するためのエッジセンサーと、所定位置からの用紙の搬送量が対象搬送量に到達したとき、ローラー部材の回転を停止させ、エッジセンサーの出力値に基づき用紙の幅方向の位置を補正する制御部と、を備え、制御部は、用紙が特殊紙である場合、用紙が特殊紙でない場合よりも、対象搬送量を大きくする。【選択図】図１０