What do you mean they changed the font?
If you printed a 3 page document on one printer and then reprinted page 3 on the new printer, you could see the difference. The HP salesman was confused that we weren't happy with this wonderful new machine and couldn't believe anyone could see the difference in fonts, let alone CARE about it. Back then in the dark ages, the way to get another font was to buy a cartridge that went in the printer. I eventually found one that had some newfangled fancy font AND the basic Courier one. I mentioned this in a comment and decided to share my pain since law firms and printing have come up here lately. And clearing the print queue when users thought sending the document 5 times would help. I don't know if they continued to buy cartridges for new printers as they got them.