Shake a bag of developer and pour it into the development hopper. Development unit ( “Drum Unit and Development Unit”)Ĩ. If you change the development unit, do the ACC procedure.ī. When the development unit is removed from the drum unit, clean the entrance mylar with a vacuum. Remove it with a watchmaker’s or jeweller’s screwdriver.ĭrum unit and Development Unit Remove the bushing of the development roller at the rear of the PCU ( x 1).Ħ. Note: Remove the toner duct first to avoid breaking it during this procedure.ĥ. The bearing is properly applied with lubricant. Do not touch the bearing after removing the front cover. If you do this, then the machine will reset the PM counter for the drum unit automatically, after you turn the power on again.Ĥ. If you install a new drum unit, set SP 3902-xxx to “1”.

When you attach the new drum unit to the development unit, remove a front cover and a front joint at first.Īnd use them for reassembling the new drum unit and development unit. The new drum unit has a front cover and a front joint. Ricoh Aficio MP C2051 Black Drum Replacement and Developer Unit

Part number for drum ricoh mpc2551