MEDIA EJECTION DEVICE, MEDIA PROCESSING DEVICE, AND RECORDING SYSTEM

To eject a media bundle loaded on a first tray to a second tray provided below the first tray while maintaining an aligned state of an end of the media bundle aligned on the first tray.SOLUTION: A media discharge device 30 includes: a first tray 35; a second tray 37 for receiving media P ejected from the first tray; a support unit 39, configured to be displaceable between a retracted position located in the first tray 35 and an advanced position located on the second tray 37 by causing the support unit to advance in an ejection direction from the first tray to the second tray, more from the retracted position, for supporting the medium P; an alignment unit 38, provided at the support unit 39, for aligning a first end E1 which is an upstream end in the ejection direction of the medium P supported by the support unit 39; and a regulating unit 60 displaceable between a regulating position where a movement toward the upstream of the first end E1 of the medium P located at a position of the alignment unit 38 in the ejection direction is regulated and a non-regulating position where a movement is not regulated when the support unit 39 is at the advanced position.SELECTED DRAWING: Figure 10 【課題】第１トレイに積載された媒体束を、第１トレイの下方に設けられる第２トレイに排出する場合に、第１トレイで整合された媒体束の端部の整合状態を維持して第２トレイに排出する。【解決手段】媒体排出装置３０は、第１トレイ３５と、第１トレイから排出される媒体Ｐを受ける第２トレイ３７と、第１トレイ３５内に位置する退避位置と、退避位置よりも第１トレイから第２トレイへの排出方向に進出して第２トレイ３７上に位置する進出位置との間で変位可能に構成され、媒体Ｐを支持する支持部３９と、支持部３９に設けられ、支持部３９に支持される媒体Ｐの排出方向における上流の端部である第１端部Ｅ１を整合させる整合部３８と、支持部３９が進出位置にある場合に、排出方向において整合部３８の位置にある媒体Ｐの第１端部Ｅ１の上流への移動を規制する規制位置と、移動を規制しない非規制位置との間で変位可能な規制部６０とを備える。【選択図】図１０