MAINTENANCE > 150CHANGING THE TRANSFER BELTWhen the transfer belt reaches the end of its product life, CHANGEBELT UNIT is displayed in the control panel. Transfer belt life isapproximately 80000 sheets, A4 long edge feed. However, thisassumes a standard print job of three sheets. If single sheets areprinted, transfer belt life is reduced.1. Switch off the printer and open the top cover.2. Remove the four image drums and toner cartridges from theprinter.