SPECIFICATIONS 1, Vertical Firing Capability 2, Highly Readable Bar Codes and Images 3, Simply Ink Supply 4, Easy for Customer to Maintain 5, Highly Reliable 6, Temperature Monitoring Capability 7, Provides Area for External Heating Element 8, Oil and Solvent ink Capabilities SEIKO SPT 255 PRINTHEAD 35PL/12PL Technology: Drop On Demand Piezo Active Nozzles: 254 Native Resolution: 180 dpi Active Print Swath: 1.4 in (35.7mm) Drop Volume: 35 pl Firing Frequency: 8.01 Khz Linear Print Speed: 22.24 in/sec (0.565 m/sec) Interface Proprietary Parallel: I/F Temperature Range: 15 - 60 Degrees C Dimensions: 3.37in W x 3.25 in H x .87 in D 85.6 mm W x 82.55 mm H x 22.09mm D Weight :.0044 lb . ( 200g )