FJS-W301 is the favored choice for fax application, which is the best replacement for OEM products. PERFORMANCE CHARACTERISTICS High standard capacity MATT printout Security foundation USE FOR Use for a variety of fax machines, such as Panasonic, Brother,Sharp,Philips,etc RIBBON SPECIFICATIONS Description Technical Specification Color Black Base Film Polyester Film Base Film Melting Point 256-265 Ink Thickness 6μ Base Film Thickness 4.5μ First Layer 0.5μ Back Coating 0.2μ Ribbon Thickness 11.2μ±0.2μ Ink Melting Point 72±2