I have an MF754 CDW laser printer. Can anybody help with advice, please? The black toner cartridge has 60% and the 3 colour toners have 40% ink each. When I try and print a document in colour I get a warning about low ink. Is it possible to overide/clear this warning and print a document? If so, how do I do this? I have tried pressing the stop/reset button for a number of different periods, i.e 5 - 10 -20 seconds, without any effect.
