Abstract: An integrated circuit to drive a plurality of fluid actuation devices includes a plurality of memory cells, a select circuit, configuration logic, and control logic. Each memory cell corresponds to a fluid actuation device. The select circuit selects fluid actuation devices and memory cells corresponding to the selected fluid actuation devices. The configuration logic enables or disables access to the plurality of memory cells. The control logic either activates the selected fluid actuation devices or accesses the memory cells corresponding to the selected fluid actuation devices based on a state of the configuration logic.

Abstract: Novel capillary feed marking instruments capable of producing edible colored indicia directly on food substrates and medicaments are disclosed. The marking instruments are used to write or decorate directly on porous and non-porous food substrates in a controlled fashions and without the need to pre-mix colors or handle dyes. Kits comprising a plurality of such marking instruments in various colors and, optionally, edible substances or artistic aids, are also disclosed. The marking instruments of the invention may also be employed in a system for classifying solid, oral medicaments such as pills, tablets or capsules, for identification and easy detection.