The AG4 is a super premium wax/resin ribbon developed to perform in applications that need extra mechanical resistance but at a much lower price than a full resin quality. This ribbon is very versatile, performing well on most uncoated papers as well as glossy and synthetic materials. It will withstand heat up to 110 ºC (230 ºF) and has a blackness of 1.7 (ODR). The AG4 is also available in metallic white. As with all Toshiba ribbon products its superior back coating offers the very best in printhead protection.