The Neopost AS-150 is small media printer. This machine, designed for small mail centers that need to address, can print coin envelopes as small as 2-1/8 x 4-inches but still run number 9, number 10 and 6 x 9-inch envelopes. The printer is easy to set-up and features a fixed head and four print qualities from 150 to 600 dpi.The AS-150 outputs at 5,500 number 10 envelopes per hour, a fast rate which can handle small- to medium-sized mailings quickly.