Patent Number: 7,784,788

Title: Sheet stacking apparatus, sheet processing apparatus, and image forming apparatus

Abstract: A first tray has notches allowing second-tray arms to pass therethrough, and arm-receiving recesses in which respective first-tray arms are received. With such a plurality of sheet stacking trays that are movable vertically, a large stack of sheets can be removed efficiently, whereby a highly productive system is provided.

Inventors: Fukatsu; Yasuo (Abiko, JP), Kato; Hitoshi (Toride, JP), Ishikawa; Naoki (Kashiwa, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: B65H 39/10 (20060101)

Expiration Date: 8/31/12018