Canon printers use small, spongy pads to absorb excess ink that accumulates while printing and cleaning the print heads. When these pads are saturated, the printer will notify you with an error message such as "Ink Absorber Full." Some models display a series of flashing lights that you must...
I found that the absorber pads, however, under the resting place of the 240 & 241 ink cartridges were held in place by a rectangular rubber cup that doesn't come out. After some fiddling, I realized that the rubber cup doesn't come out but the rather hard pads they held came out eas...