From the EFF pages linked to in this discussion and Brahm's first post, it seems only colour laser printers have the watermark. (Also http://seeingyellow.com/ h

From the EFF pages linked to in this discussion and Brahm's first post, it seems only colour laser printers have the watermark. (Also http://seeingyellow.com/ http://seeingyellow.com/). So black and white laser and inkjet should hopefully be fine.