TransAct 153SRJ11-BLACK 9.5 LPS 153, Impact Printer Black Media sizes supported: Paper Roll (One-Ply): Width: 82.5 mm (3.25 in.) or optional 76 mm (3 in.) Diameter: 89 mm (3.5 in.) Length Per Roll: 73.1 m (240 ft.) One-Ply Maximum Thickness: .11 mm (.0045 in.) Paper Roll (Two-Ply): Width: 82.5 mm (3.25 in.) Diameter: 89 mm (3.5 in.) Length Per Roll: 38.1 m (125 ft.) Maximum Thickness Per Ply: .09 mm (.0035 in.) Paper Roll (Three-Ply, not for use with Model 151 with Auto-Cut): Width: 82.5 mm (3.25 in.) Diameter: 89 mm (3.5 in.) Length Per Roll: 26 m (85 ft.) Maximum Thickness Per Ply: .25 mm (.01 in.) Ribbons: 3-4.5 Million Character Life Ithaca or Genuine Oki Snap-on Ribbon Cassette (Black or Purple) Interface: Bi-Directional Serial (9-pin) Dimensions: 6.75 W x 11.3 D x 5.6 H Weight: 6.5 lbs. (2.95 Kg)