Printhead assembly having grooves externally exposing printhead die

An inkjet printing device comprising:

• one or more printhead assemblies, each printhead assembly comprising:
• a housing;
• a surface of the housing;
• a well defined within the surface of the housing and adapted to disposal of a printhead die therewithin;
• and,
• one or more grooves within the surface of the housing, the grooves having ends, some of the ends adjacent to the well, the grooves externally exposing the printhead die;
• and,
• logic to control the printhead assemblies to cause the printhead assemblies to eject ink onto media in accordance with an image to be printed onto the media,
• wherein the grooves of each printhead assembly are adapted to increase vapor loss from the printhead die even when the printhead die is capped or otherwise not externally exposed,
• and wherein the grooves of each printhead assembly are situated at non-right angles to sides of the well at which the some of the ends of the grooves are adjacent, the non-right angles being selected so that wiping and capping of the printhead die are unaffected by the grooves.

A method comprising:

• providing a housing of an inkjet printing device printhead assembly, the housing having a surface within which a well is defined, the well adapted to disposal of a printhead die therewithin;
• and,
• forming one or more grooves within the surface of the housing, the grooves having ends, some of the ends adjacent to the well, the grooves externally exposing the printhead die,
• wherein the grooves of each printhead assembly are adapted to increase vapor loss from the printhead die even when the printhead die is capped or otherwise not externally exposed,
• and wherein forming the grooves within the surface of the housing comprises:
• forming the grooves at non-right angles to sides of the well at which the some of the ends of the grooves are adjacent;
• and,
• selecting the non-right angles so that wiping and capping of the printhead die are unaffected by the grooves.