I have been printing on a HP Laserjet 4200 for over 15 years. It has been a work horse for me and my job. (They no longer make this printer) It prints 11 envelopes per minute and has an envelope feeder that holds 75 envelopes. I have tried other HP printers, Lexmark and Konaka Minolta printers but either they break with the volume that I print or they are slower than Christmas and I have to send them back. I print about 3,000 envelopes a month, sometimes more sometimes less. I looked online and there is only an inkjet printer that will do 100 per minute but it is over $6,000. I would be happy with one that will do 25 per minute and under $2000. Anybody have any ideas???