Bruised by Denverites’ post-pandemic reluctance to return to offices, Ink Coffee has gone from a 16-location success story with $5 million in annual revenue to a bankrupt company of four cafes that could soon be sold for $300,000 — a price some see as “artificial.” “The COVID-19 pandemic turned off its business like a light switch,” its lawyers say. Ink began in 1994 when a self-described ski bum named Keith Herbert returned from Italy, where he’d learned to make coffee, and began selling it from a steel cart in Aspen.