Sheet stacking apparatus and image forming system

    公开(公告)号:US10124977B2

    公开(公告)日:2018-11-13

    申请号:US15359755

    申请日:2016-11-23

    摘要: A sheet stacking apparatus including a control portion is configured to execute: a first mode in which the control portion causes a bundle forming portion to form a bundle of sheets including a sheet supported by a first placement portion and a sheet placed on a second placement portion; and a second mode in which a downstream end portion of a bundle of sheets formed in the second mode is positioned upstream of a downstream end portion of a bundle of sheets to be formed in the first mode, and wherein the control portion sets a maximum number of sheets constituting a bundle of sheets which the control portion causes the bundle forming portion to form in the second mode to be smaller than a maximum number of sheets constituting a bundle of sheets which the control portion causes the bundle forming portion to form in the first mode.