Hi there. The message on your printer is referring to the waste ink collection pads within the printer that absorb ink expelled during head cleaning etc. At a pre determined amount of printer usage the printer is shut down and requests service of the waste ink pads to prevent possible problems from ink spills from overflow. The Warning is not based on any actual measurement of ink level just on a usage estimate. The actual waste ink pads are not a user replaceable item as they sit deep in the printer and it requires a major strip to replace. This is because the waste ink pads are considered to normally last the life expectancy of the printer and Canon assume most users will replace the printer before or when full. There a 2 choices to bring the printer back to working. The first is to have the pads replaced and the warning cleared by a technician or service center (Approx about $100) or to reset the waste ink warning and continue as is and monitor the printer for any ink leaks. In truth i have never seen one leak but the potential is there. There is a front panel button routine that will usually clear the warning if you want to try the reset and continue approach.
Thanks very much, I'll try the front panel button routine to reset and continue.
( Since the printer uses a lot of ink, I installed a black and white copier to get copies from the computer and internet-But the Canon is very handy to make a few copies now and then)
So please send me a copy of the procedure.
Ok. The sequence is very important so it can take a couple of tries to get it 100% right.