After replacing the drum unit, keep the front cover open and hold down CLEAR or Stop/Exit button or button located under LED's until all LED's are lit. Release button and make sure drum LED is off, then close cover. If the display asks, "Replace Drum?" 1. Yes 2. No - Press "1". Close the front cover. The counter is reset.
DR-510
After replacing the drum unit, keep the front cover open and hold dow the GO button or button until all LED's are lit. Close the front cover. Release button and make sure drum LED is off. If the display asks, "Replace Drum?" 1. Yes 2. No - Press "1". The counter is reset.