An Oki laser printer needs a genuine Oki 42931603 transfer belt to function properly. The Oki 42931603 transfer belt collects the toner from the image drum to process it in layers before transferring it to the print media in a single stroke. The Oki 42931603 transfer belt is an important component in the laser print process that can affect the quality of images on plain and speciality paper. With an Oki 42931603 belt, the machine can print at high speed while reducing errors and poor print outs. Constructed from the highest quality materials, this dependable and original Oki 42931603 transfer assembly belt works reliably in your laser printer for approximately 100,000 pages. This genuine Oki 42931603 replacement transfer unit is a comprehensive product that is easy to install.