An ink jet printer for printing on a substrate comprising a first print
head outputting ink and defining an ink meniscus; a platen operable to
carry the substrate; a support structure; and a print head mechanism
coupled to the support structure and carrying the first print head. The
print head mechanism moving the first print head relative to the platen.
A controller controls the print head mechanism such that at least one of
a predetermined acceleration and predetermined deceleration of the print
head mechanism is achieved such that the ink meniscus is operably
maintained.