Liquid discharge head, head module, and liquid discharge apparatus

A head module comprising:

• a plurality of liquid discharge heads including a plurality of nozzle substrates, respectively;
• and
• a plurality of cover members joined to the plurality of nozzle substrates, respectively, wherein each of the plurality of nozzle substrates including:
• a liquid discharge surface;
• a plurality of nozzles arranged in a nozzle arrangement area on the liquid discharge surface and configured to discharge liquid from the liquid discharge surface;
• and
• a continuous recess surrounding the nozzle arrangement area on the liquid discharge surface,
• the nozzle arrangement area having a liquid repellency with respect to the liquid,
• an inside of the recess being lyophilic to the liquid and provided with an adhesive, and
• wherein each of the plurality of cover members is joined to one of the plurality of nozzle substrates with the adhesive such that the nozzle arrangement area is exposed.