Buy HP - Hewlett Packard C8947A-CARRIAGE_PC_BRD
This pc board attaches on the carriage, it is usually a small pc board that has carrage cable attached to it. For DeskJet 3420
HP - Hewlett Packard
OEM (Original Equipment Manufacturer) - this item is the original item from the manufacturer sold as brand new.
Refurbished is the process of reselling an item that had been in good working order. Refurbished items are dis-assembled and restored to "like new" condition.
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