HP LaserJet Envelope Feeder Auto document feeder (ADF) HP Color LaserJet Enterprise M607 M608 M609 LaserJet Enterprise M607 M608 M609 75 sheets BlackWhite Business Automatically print envelopes so you can focus on real business needs. Make envelope printing an easy part of business productivity with this feeder that holds up to 75 envelopes. Add a second feeder for a total capacity of 150 envelopes. Help improve productivity and reduce printer interaction by eliminating the need to manually load envelopes. Simplifying business mailings by printing envelops quickly and efficiently with this feeder that holds 75 envelopes. Add two HP Envelope Feeders and print up to 150 professional looking envelopes at a time.