Sharp MX-3070N Handy Manual page 20

MAINTENANCE
SHARP
Every Every
300K 300K 1K FINISHER [MX-FN28/FN29]:
Clean paper transport rollers.
Clean all sensors.
Replace Staple Unit every 500K staples [0JEAJ011030//]
Replace Saddle Staple Unit 200K staples [0JEAJ011031//]
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