How to refill Ricoh Aficio SP C220 C221 C222 C231n C231sf C232sf C311n C312dn C242sf printer

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How to refill Ricoh Aficio SP C220 C221 C222 C231n C231sf C232sf C311n C312dn C242sf............. printer

Please check link below for the video instruction

https://www.youtube.com/watch?v=NXzkfXERJzk