Patent ID: 7771010

Claim:
An apparatus for printing, the apparatus comprising: a first plurality of printing cartridges comprising at least three cartridges; a carrier for mounting the first plurality of printing cartridges, wherein the first plurality of printing cartridges are disposed on the carrier in a first and a second group of printing cartridges, wherein the cartridges comprising each group are distributed on the carrier in a two dimensional pattern such that at least two cartridges disposed in each pattern and that print abutting segments of a line along a first dimension are separated in a second dimension by a third cartridge and wherein the pattern in which the cartridges of the first group are distributed is substantially identical to the pattern in which the cartridges of the second group are distributed; a media transport for moving a substrate parallel to the second dimension; and wherein the maximum number of cartridges separating any two cartridges that print abutting line segments is less than half of the number of the first plurality of printing cartridges.