MEDIUM DISCHARGE DEVICE

• Main Authors: MIYAGAWA MASAYOSHI, KONDO KATSUYUKI
• Format: Patent
• Language: English; Japanese
• Published: 30.05.2019
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

To provide a medium discharge device capable of preventing a downstream end of a following medium in a conveying direction from being bent due to a contact with an upper surface of a preceding medium on a discharge tray.SOLUTION: A medium discharge device 300 comprises: a discharge roller 329 for discharging a medium; a discharge tray 331 arranged below the discharge roller 329 in the vertical direction and having a mounting surface 331a on which the medium discharged by the discharge roller 329 is placed; and a sheet member 340 formed so as to move forward and backward between a retracted position on an upstream side and an advanced position on a downstream side in an interspace between the discharge roller 329 and the mounting surface 331a. A friction coefficient of the top surface of the sheet member 340 is designed to be equal to or lower than a friction coefficient of the mounting surface 331a. The downstream end of the sheet member 340 as the advanced position is located downstream of a position where the downstream end of the medium discharged in the absence of the sheet member 340 first contacts the top surface of the preceding medium placed on the mounting surface 331a.SELECTED DRAWING: Figure 6 【課題】後続媒体の搬送方向における下流端が排紙トレイ上の先行媒体の上面に当接して折れ曲がることを抑制することができる媒体排出装置を提供する。【解決手段】媒体排出装置３００は、媒体を排出する排出ローラー３２９と、排出ローラー３２９の鉛直方向下方に配置され、排出ローラー３２９により排出される媒体が載置される載置面３３１ａを有する排紙トレイ３３１と、排出ローラー３２９と載置面３３１ａとの間の空間において上流側の退避位置と下流側の進出位置との間で進退可能に構成されたシート部材３４０と、を備える。シート部材３４０の上面の摩擦係数を、載置面３３１ａの摩擦係数以下に設定し、進出位置にあるシート部材３４０の下流端の位置を、シート部材３４０が無い場合に排出される媒体の下流端が載置面３３１ａ上に先行して載置された媒体の上面に最初に接触する位置よりも、下流側に配置する。【選択図】図６