Patent ID: 7762539

Claim:
An image formation apparatus comprising an original reading section disposed above a main body of the image formation apparatus, a paper feed section disposed under the main body of the image formation apparatus, a printing section disposed between the original reading section and the paper feed section, a sheet post-processing apparatus and an ejecting section disposed in a space portion of the main body of the image formation apparatus, the space portion formed by the original reading section, the printing section and the paper feed section, said sheet post-processing apparatus comprising a cooling fan located on a front side of said sheet post processing apparatus and a stapling mechanism section located on an air path of the cooling fan, wherein the stapling mechanism section has a driving means for controlling travel from a standby position in the vicinity of the cooling fan to a position at a back side of the sheet post-processing apparatus to a predetermined stapling position for executing stapling processing at the time of the stapling processing, the cooling fan includes means for operating the fan while the stapling mechanism section is moved by said driving means to the back side of the sheet post-processing apparatus during the time of operation of the image formation apparatus, and the stapling mechanism section is moved by said driving means to the predetermined stapling position for execution of stapling processing at the time of the stapling processing.