Abstract: Apparatus for depositing fluid on a substrate in a predetermined design. A two-part die assembly is used in the apparatus and includes a die plate and a feed plate bonded together having at least one lateral fluid distribution channel therein. The die plate has a recess in a first surface thereof corresponding with the predetermined design and passage means therethrough connecting a second surface thereof with said recess to deliver fluid into said recess. The feed plate bonded thereto also has passage means therethrough to deliver fluid into said passage means of the die plate. The two-part die assembly is adapted to be releasably secured to a support means by, preferably, double-sided adhesive tape.

Abstract: A fluid injector unit, functioning as a pump-type injector unit through cooperation between an upper and lower press platen, being easily disassembled into a minimum number of parts for cleaning. Disengagement of a unitary assembly comprising a piston collar for supporting a main piston through biasing means therefor from a housing member containing a pump chamber results in easy access to those parts requiring cleaning without disassembly of parts external to fluid passages which do not require cleaning.

Abstract: An improved printing apparatus and method utilizes a plurality of compressible injector units to apply ink of different colors to the face surface of a printing plate disposed at an inking station. After the injector units have been compressed to apply ink to the face surface of the printing plate, a transfer roller is moved across the surface of the printing plate. The transfer roller is then moved from the inking station to a printing station and applies ink received from the face surface of the printing plate to sheet material at the printing station.