Ricoh ZIP RIP UC6 GOLD PRINT CONTROLLER 120/240 VOLTS, 50/60 HERTZ–WORKS GREAT!! This unit works in various models of ricoh, savin, gestetner, lanier, and standard digital duplicators. I will list out the Ricoh and Standard models for use in Ricoh JP1235, JP3000, JP4500, JP5500, JP8500 Standard SD350, SD370, SD420, SD450, SD650. You will need to know how to hook the unit up and have the board in your machine to work. Thanks and good luck.