SHEET DETECTING DEVICE, SHEET POSTPROCESSING DEVICE AND IMAGE FORMING DEVICE HAVING IT

摘要

PROBLEM TO BE SOLVED: To detect a sheet even when a thin sheet with low stiffness such as a second original drawing is not conveyed to a predetermined position. SOLUTION: In this sheet detecting device 20, one detecting means 24 detects actuations of a plurality of sheet actuating members 21 and 22 that are arranged in the sheet conveying direction and are actuated by being pressed by a sheet.