Panasonic KX-FLM652CX Service Manual page 142

KX-FLM652CX
9. Check the toner sensor.......... "TONER LOW", "CHANGE DRUM"
As for the following check, remove the drum from the main body, set it again and close the cover, then perform that check
during initializing operation. Refer to SENSORS AND SWITCHES SECTION (P.185).
CROSS REFERENCE:
SENSORS AND SWITCHES SECTION (P.185)
142