SHEET STACKING DEVICE

摘要

A sheet stacking device (77) is provided with a sheet discharge platform (76) on which image forming sheets (P), which have been subjected to heating and drying processing after images are formed using ink, are stacked; and a nozzle (162) that blows air to a side surface of a sheet bundle in a horizontal direction. Air is blown to the sheet bundle stacked on the sheet discharge platform (76) while the height of the sheet discharge platform (76) is adjusted by a sheet discharge platform raising and lowering device (100) so that a gap is formed between the sheets in the vertically middle portion of the sheet bundle. According to the sheet stacking device (77), a plurality of image forming sheets (P) can be efficiently cooled on the sheet discharge platform. Accordingly, the occurrence of blocking can be suppressed.

主权项

1. A sheet stacking device comprising:
a sheet discharge platform where sheets, which have been subjected to heating and drying processing after images are formed using ink liquid, are conveyed and stacked; a blowing mechanism that includes a nozzle having an opening, a whole surface of the opening being positioned so as to face a portion on a side surface of a sheet bundle stacked on the sheet discharge platform below an upper portion of the sheet bundle by a distance corresponding to a predetermined number of sheets, and the nozzle blowing air to the side surface of the sheet bundle via the opening; and a height adjustment mechanism that changes the position of the sheet discharge platform relative to the nozzle in a vertical direction according to a height of the sheet bundle.