Patent ID: 7922299

Claim:
An ink jet print head comprising a print head matrix, the matrix having a plurality of nozzles for bubble formation and expulsion, said nozzles opening onto a print side surface of said matrix, the matrix further comprising a plurality of local reservoirs, wherein each of said local reservoirs is configured to supply ink to nearby ones of said nozzles at atmospheric pressure by capillary action, wherein said capillary action is unaided by compression, said local reservoirs opening onto an ink supply surface of said matrix and such that each one of said local ink detaining storage reservoirs supplies ink from said ink supply surface to a single respective one of said nozzles wherein said matrix is arranged into a substantially rectangular printing area dimensioned to give simultaneous printing coverage of standard sized printing media upon being placed substantially over said standard sized printing media, and arranged for said printing on said standard sized printing media during a period of unchanged relative displacement between said print head and said printing media.