It is rather easy to keep an inkjet printer from gunking up if you buy a set of refillable cartridges, fill them with a 50/50 mix of demineralized water and inkjet cleaning fluid, install them and run a cleaning cycle after you finished a printing session. No ink in the nozzle means no gunk. This trick also works well for cleaning nozzles, since the cleaning fluid is a surfactant and it breaks up clumps of dried pigment better than just a stream of ink.