It all depends where it is kept. As carts have a breather hole somewhere they are prone to evaporation- thus the ink thickens- thus - jet failure in Epsons in particular- in warm conditions. Thermal ink jets[Head in Cart] If when not in use keep in a snap shut poly bag wirth some damp tissue and in the fridge. Epson type and others that are merely 'tanks' with head in machine - once in use keep then in use with regular printing of full a colour page so that dry out does not occur.
I reckon that's what did for my last Canon printer. Buying compatibles, cheaper if you bought 2 or more of each, so ended up using less than perfectly fresh ink and eventually blocked the printed head irreparably.
Sticking to Canon with the replacement machine for the time being. (we're printing less anyway since the kids ar hardly ever at home anymore)