I have just junked all the inkjets at work because by the time you taking into account the pain in the backside factor to do with ink etc they are all expensive as hell.
A lesson learnt the hard way .....
The rule of thumb is that you never, ever use inkjets in a business context unless your line of business is one of the exceptions...e.g graphic design. I don't care if you're a one man band or a large corporate.... inkjets don't have a place in the vast majority of workplaces.
People who set up business IT infrastructure on the cheap just by looking at short-term costs of acquisition will find it coming back to bite them in the backside.