Double Staple Width Adjustment
You can adjust the double staple width.
This mode can be set when the Staple Finisher-W PRO or Booklet Finisher-W PRO is attached. (See "Staple Finisher-W PRO/Booklet Finisher-W PRO/Puncher Unit-BS/Puncher Unit-BT.")
1.
Press 
(Settings/Registration).
(Settings/Registration).2.
Press [Adjustment/Maintenance] → [Adjust Action] → [Adjust Double Staple Width].
3.
Press [-] or [+] to adjust the staple width → [OK].