Our OPC's from Korea have been proven stable and consistent in quality in the past years and can compete on quality with any other A-brand OPC manufacturer. No matter which toner you use. Consider our flat rate with MOQ of 300pcs, one price for all OPC's for use in DR2000/2100/3000/3100/3200/6000/7000, covering 98% of all popular OPC's currently in the market. Contact us at info@citbv.com for your personal flat rate.