Sorry Guys, sometimes i,m broke, cant spend for new cartridges & my 3400 le?

Have to use sometimes refilled printer scanner cartridges and sometimes my printer says that inks too low or cartridge is not compatible " almost always" when it has been refilled. I need to use them, cheaper etc., also my download for 3400 driver program did not download the lexmark imaging centre for to rescan and fix sizes. Where to go again to do a download both same and lexmark imaging centre, please?

ron