Sheet processing device, sheet output device, laminator, image forming apparatus, and image forming system

A sheet processing device comprising:

• a sheet storage configured to store multiple sheets conveyed in a conveyance direction, the sheet storage including a first storage portion and a second storage portion upstream from the first storage portion in the conveyance direction of the sheets, the first storage portion including:
• a fixed bottom wall;
• a first wall being one side wall of the sheet storage and extending from the fixed bottom wall;
• and
• a second wall being part of another side wall of the sheet storage and extending from the fixed bottom wall, and
• the second storage portion including a third wall continuous to the second wall;
• and
• a sheet displacer limited to a back and forth pivoting movement and configured to:
• displace a preceding sheet of the sheets that are stored in the sheet storage;
• and
• contact an upper end of the preceding sheet to displace the preceding sheet such that the upper end of the preceding sheet moves toward the third wall,
• wherein the sheet displacer is configured to displace the preceding sheet prior to a subsequent sheet of the sheets being conveyed toward the second storage portion,
• wherein the second wall and the third wall are coupled via a bent portion that bends in a manner such that a storage space of the second storage portion is greater than a storage space of the first storage portion, and
• wherein, after the sheet displacer has displaced the upper end of the preceding sheet, the sheet displacer is configured to contact a leading end of the subsequent sheet to guide the leading end of the subsequent sheet to a position below the upper end of the preceding sheet.