A liquid droplet forming method is used with an apparatus that includes a liquid jet recording head having a plurality of blocks of thermal elements, each of which blocks includes a plurality of the thermal elements arranged on a substrate at a pitch of at least ten thermal elements per millimeter, with...http://www.google.de/patents/US6264297?utm_source=gb-gplus-sharePatent US6264297 - Liquid jet recording using a multi-part drive signal sequentially applied to plural blocks of thermal elements
