Description: Waste toner reservoir overflow probrem (when the total number of copies is less than 100 thousand sheets) • After E31 is displayed, 1,000 sheets are copied. Or waste toner exceeds 5 g.
Remedy: Replace the waste toner sensor and check for correct operation. Replace the engine board (KP-5061) and check for correct operation.
Code: C7990
Description: Waste toner reservoir overflow probrem (when the total number of copies is 100 thousand sheets or more) • After E31 is displayed, 1,000 sheets are copied. Or waste toner exceeds 5 g.