If your stamp is not giving a crisp impression, then most of the time it simply needs more ink or a new ink pad. Buy PD-50 One Color Replacement Ink Pad from Engineer Seal Stamps at a reasonable price which works with several Trodat stamp models such as the 5200, 5030, 5430, 5430/L, 5435, 5546, and 5546/PL. It is available in multiple ink color choices and offers thousands of crisp impressions.