Once installed, your small office printer will need to be fed and watered regularly with ink and paper, so working out the ongoing cost of both is a good way to start comparing the long-term running costs for different printers.
When it comes to ink, rather than focusing on the upfront cost of printer cartridges, the more important metric is the cost-per-page (CPP), calculated by dividing the price of the printer cartridge by the number of pages it will print.
While the upfront ticket price for laser cartridges may be higher than inkjet cartridges, you may well find that the cost-per-page is lower.
Finally, you need to factor in the ongoing cost of buying paper. This can add up quickly, especially when calculated on an annual basis over several years. Remember that a printer capable of double-sided printing uses less paper and as such can help save on paper costs.