Our illustration shows a very common variant of the nozzle row arrangement for a scanning machine. A head block contains 2 nozzle rows each, which are equipped with one color and are arranged offset to each other by half a nozzle distance.

The offset head blocks practically double the nozzle rows of the individual colors. The increased number of nozzles can be used to achieve a greater material feed, which in turn leads to greater printing performance. It is also possible to select a better multipassing process and thus increase quality.

In order to achieve the same application sequence in both directions of movement, the individual rows of nozzles have been mirrored, starting from the center of the head blocks, and loaded with ink.

It makes sense to arrange the head blocks in such a way that the nozzle rows overlap somewhat to enable the outputs to be interwoven.

The printing resolution of such an arrangement can be flexibly adjusted in the head running direction and can be an integer multiple of the basic resolution resulting from the nozzle arrangement in the material running direction.

The arrangement has the disadvantage that both head blocks must be moved over the entire printing width for each printing movement.