Head module, droplet ejection unit, Image forming apparatus, droplet ejection head positioning jig, and method for manufacturing head module

摘要

A head module includes: a droplet ejection head that has a nozzle surface formed by a plurality of nozzles and ejects droplets through the plurality of nozzles; a support plate to which the droplet ejection head is fixed; and a sub-plate to which the support plates are fixed. When a plurality of the support plates are fixed to the sub-plate, the plurality of the support plates are fixed thereto with the nozzle surfaces of the plurality of droplet ejection heads being disposed on the same plane. Consequently, tilts of the nozzle surfaces of the droplet ejection heads can be prevented.