FWIW, a normal thermal fax roll works fine in the 9866 printer (as used with 98x0 'calculators'). I have no idea if it puts more wear on the printhead than the genuine HP paper (HP used to make that sort of claim, I wonder how much of it was to sell their own paper :-)), but it's fine for the amount of use such a printer is likely to get today. It also works fine in the 2761, and I should perhaps tell you a little story about that. As you probably know, European paper is 210mm wide, US paper is 216 mm wide. I wnet to one branch of a well-known chain of stationery shops in London and they only had 210mm fax rolls. I bought one and found I could just get the 2761 to print on it if I positioned it just right (so that the head didn't move off the edge of the paper and then snarl up as it moved back). So I went out the garage and made a couple brss disks of the right thichness to fit over the paper roll spindle and hold the roll in the right place. It works fine. But boy was I annoyed when I went to another branch of the same chop and found they also sold 216mm wide rolls.... -tony