I have a Canon Selphy CP900 photo printer and I recently bought new ink cassette refills that stated they were compatible with my printer. I got them home put in the new ink cassette and it keeps reading that the ink cartridge is empty to put a new one in. I’ve powered down the printer and taken the new ink cassette out numerous times and keep getting the error. Can someone please tell me how to fix this?! I am very bummed and would really like to be able to utilize my printer again but haven’t been able to.