for Samsung 6545 drum chip 1.ZHONO make it 2.version difference 3.toner & drum chip needed 4.same origianl chip page yield Paperworld 2013 Frankfurt am MainDate: January 26-29,2013Booth NO.: 3.1 hall, A52Choose ZHONO,become splendid! Compatible new toner cartridge chip for Samsung 6545 drum unit1. Original Place: ZHONO made it2. Color: mono toner cartridge chip3. Version: toner chip: EXP, DOM, ...