Stapling Start Time in the Staple Mode
You can set the time stapling starts after paper is loaded when in the Staple mode.
This mode can be set when the Staple Finisher-AC or Booklet Finisher-AC is attached. (See "Staple Finisher-AC/Booklet Finisher-AC/2/3 Hole Puncher Unit-A/2/4 Hole Puncher Unit-A.")
1.
Press 
(Settings/Registration).
(Settings/Registration).2.
Press [Adjustment/Maintenance] → [Adjust Action] → [Time Until Stapling Starts in Stapler Mode].
3.
Press [-] or [+] to adjust the stapling start time → [OK].