Oki ES9476 MFP Hardware Troubleshooting Manual page 75

1.TROUBLESHOOTING FOR THE HARDWARE
5 Fit the staple cartridge into the stapler.
When fitting the staple cartridge, hold the green-labeled portion of the bracket securely so that the bracket will
not move.
Insert the cartridge until it is caught by the latch and fixed with a click.
Close the front cover of the finisher.
6
If the message "Check staple cartridge" remains, repeat the procedure above from steps 1 to 6.
 Inner Finisher
Lift up the control panel and then open the front cover of the finisher.
1
While holding the green lever, move the finisher to the left until it stops.
2
Open the Hole Punch Unit while pushing the green lever.
3
Refilling With Staples 75