Lanier LD335c constantly asking for black toner when the toner is still full

SOURCE: Full Waste Toner Bottle in Lanier LD040

Hello sir; I believed you talking about LD045, am I right? In this model it doesn't have waste toner bottle, the only place you can clean is imaging transfer unit, after you cleanup the message will be disappear.

SOURCE: lanier LW324 waste toner bottle full

Open the machine and to the right under the drum you should see the the black powder (toner) going down into container the right lower side  cover must come off. probably a service call will be needed