Is it a ink miser or guzzler?
My wife and I find our current printer Brother MFC 240c seems to require ink replacements more often even though we rarely use it. It's cost too much to replace the cartridge and it seems that if you replace one the others need to be replaced too, about $80 each time. Something to do with cycle and maintenance time wired into the firmware. Similar to my smart car informing me it's time for a oil change but with the printer, it will not print until you change one or all ink cartridges.