... Clean thoroughly 2. Remove the residual ink stain 3. Prevent blocking the version Three-Color Ink Cylinder CleanerTechnique Parameters:Brand: Three-colorModel ... 4. Wait about 15 minutes, now the cleaner is become ink color, use the special stainless steel brush brush it reciprocatingly ... amount of residue, you can repeat the procedure 2, 3, 4, brush it a few times, you will get a all cleaned-up roller ...