My wife makes greeting cards and currently uses a canon 6250 printer which we find excellent but costly on ink. We have tried the external ink supply systems but they fail reasonably quickly, air keeps getting in the lines even if fitted by "experts". We bought a brother printer but quickly found out they don't like 200gsm paper which she uses. The brother printer was also fitted with an external ink supply which was supposedly the one to use with those systems. Getting frustrated here. Need a printer that can print around 100 sheets per day on single sided glossy a4. Really don't want to spend more than $500 but will consider anything. Thanks in advance.