Photoconductor units are such an essential part of your printer, that it is literally impossible for Ricoh laser printers to operate without products like the 407324. This genuine Ricoh 407324 image drum regulates the flow of black toner powder, getting it where it needs to be, for fusing to your paper.With a high page yield of 20,000 prints, the original Ricoh 407324 drum unit rarely needs changing, but even the sturdy components the manufacturer uses, have their limits. You can use this fabulous 407324 photoconductor unit in many different Ricoh laser printers including the SP 3610SF.