EXTERIOR hp Color 9850mfp 3. Remove the 2 dust filters 1 [2] and the ozone fil- ter 3 [3] from the filter replacement duct [1]. [1] [3] [2] 4. Reinstall the above parts following the removal steps in reverse. Note: • When reinstalling the ozone filter 1, be care- ful not to snap or fracture it. • When reinstalling the dust filter 1, be sure to press it against the stopper section [4] of the filter replacement duct. III DIS./ASSEMBLY [4] 3-4