You don't. The waste ink container isn't designed to be user-servicable. I have that same printer by the way. The waste ink container is why an inkjet printer won't last a long time. Just to get at the waste container requires taking the printer apart, and I don't even want to think about the kind of mess involved if you were to try to remove the container and clean it out. Trust me, I'm very handy with computers and electronics, and even I wouldn't bother with it. When my waste tank gets filled, I'll get another Canon inkjet printer.
Anyway, if you decide to stick with Canon printers, then you could probably buy one of the MP150 descendants (e.g. MP280 or MG2120) for like $30 bucks on sale. The newer printers print and scan at the same resolutions as the MP150, but they start printing a lot faster. The newer printers are also smaller and refilling the ink is easy, just like the MP150.
Oh, and if you barely need to use colour printing, then I really suggest that you get a Canon monochrome all-in-one laser printer for doing most of your printing.
-You can find places where the toner cartridges are really cheap, so you'll save a lot more money than using an inkjet printer. I can get new, compatible Canon #104 toner cartridges for my old Canon MP4270 laser printer for as low as $22 (Canadian), though the newer laser printer cartridges would cost more.
-You don't have to worry about ink nozzle clogging, especially if you haven't used the printer for a long time.
-The laser printer will print MUCH FASTER.
-You can use cheap, standard 20lb paper without worrying about ink bleeding or spending more money on 24lb inkjet paper.
-You get much more printing done per toner cartridge, compared to a black inkjet cartridge.
· 7 years ago