The Syahi 2590 is a black solvent ink cartridge for online and handheld thermal inkjet coders, with a 12.7 mm print head. It has a black body, a clear protective clip over the nozzle plate and a label reading Solvent 2590 Black that lists OPP, PP, PET, PE, AL, rubber, glass and metal as print surfaces. The fast-drying black ink is used for MRP, batch number and expiry date coding.