You want a home office printer that just works when you need it, rather than one that jams every time you print a boarding pass. A good laser printer should last you a decade, which means you are buying this once instead of replacing a cheap inkjet every two years. Look for monochrome models if you only print text, and check the release cycles to see when last year's model drops in price.
Back to school season brings out a lot of office gear discounts, making it a smart time to look. Around $350 covers a solid machine with duplex printing and decent speeds. Let's look at how to map out the purchase so you aren't scrambling to pay for it all at once.
Remember that the intro window is a deadline, not free money, and any remaining balance at the end of the 18 months will trigger standard interest charges.