The Ricoh SP C840 Transfer Unit (408037) is a replacement transfer component for the SP C840DN and SP C842DN printers. It is also listed as a transfer guide, identifying its role in the printer’s image-transfer system.
Ricoh specifies a declared yield of 200,000 for this unit. This provides a reference for its intended service interval in the supported printer models. The distributor listing identifies the package quantity as one piece.