Ricoh Pro C900 Replacement Manual page 33

11. Turn the machine's main power switch to ON, close the left and right front
covers, and then wait for the machine to warm up.
12. Open the TCRU Display. (See "OPENING THE TCRU DISPLAY".)
13. Press the [Drum Unit] button.
14. Press the [Reset PM Counter] button of the item that is the corresponding color.
15. If a confirmation message appears, press the [Continue] button.
Note: The counter will be reset.
16. When the counter is reset, press the [Confirm] button.
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