A little off-topic, but one of the most common reasons for replacing an inkjet printer is blocked nozzles. A tip that I picked up a few years ago is that glass cleaner can be very effective in unblocking the nozzles - Run the nozzles forward and back a few times over some blotting paper or kitchen towel soaked in glass cleaner.
This is NOT recommended for routine cleaning, but it has worked for me in reviving two old inkjet printers that would otherwise have been thrown away.