I kept noticing the ink was running out way too soon so I called Pitney Bowes to ask a question. After repeatedly getting the Philippine on the line where no one could answer my question, I finally learned to insist on asking to be transferred to the US which they woudl do reluctantly. the tech person I spoke with said the ink should last between 500 and 700 letters. I mnetioned that mine ran out after about 45. They sent me a new cartiridge. The same thing happened. I called again and they suggested we try a newer machine which they sent me with a new cartidge. The same thing happened again. I finally concluded the lease is a scam - a ruse to get you to frequently buy expensive ink all the time. I finally cancelled my contract and returned the machine. Two weeks later they charged my credit card for $900 for postage. Go figure! Bottom line - impossible customer service, ink cartirdge rip off - unethical behavior. STAY AWAY!!!