I cannot get my printer to print envelopes. It prints sheets, and was printing envelopes, but now gives me some message saying the sheet is wrong size for the printer, and wants me to press the reset button. The message always disappears before I ever get the whole thing read. When I push the reset button, the printer will grab the envelop, but it takes about 20 minutes before it runs it all the way through, and then only the return address (and not all of that) prints. I have no instruction book for the printer, even though I bought it new, and it is about 1 year old now. There is ample ink in printer.