Patent ID: 8794616
Filing Date: 2014-08-05
Classification: G03G

Abstract:
1. A sheet post-processing apparatus comprising: a first unit provided with guide means for guiding a sheet that is sequentially carried in; a second unit provided with first post-processing means for performing post-processing to punch and stamp on the sheet that is sequentially carried out of the first unit; and a third unit provided with a processing tray to load sheets that are sequentially carried out through the second unit, second post-processing means for performing post-processing including width alignment, staple binding and adhesive binding on the sheets in bunch form placed on the processing tray, and a collection tray disposed on the downstream side of the processing tray to store the sheets subjected to the post-processing, wherein the first, second and third units are successively provided parallel in a sheet carrying-out direction, the apparatus further has first coupling means for coupling the first unit and at least one of the second unit and third unit, second coupling means for coupling the second unit and the third unit, and shift inhibiting means for inhibiting shift of the second unit to a first unit side due to release of the second coupling means, the second unit and the third unit are capable of being pulled out in the sheet carrying-out direction with respect to the first unit by releasing the first coupling means, the entire or front side of the second unit is capable of shifting to the first unit side with respect to the third unit by releasing the second coupling means, and the apparatus reserves clearance opened widely between the first unit and the second unit located in a pull-out position, the second unit and the third unit are pulled out in the sheet carrying-out direction by releasing the first coupling means, the second unit and the third unit are stopped in pull-out positions by the shift inhibiting means, and the entire or front side of the second unit released by the second coupling means is capable of shifting to the first unit side after releasing inhibition of the shift inhibiting means.