Printhead die assembly

A method for calibrating a printer, the method comprising:

• positioning a first printhead die and a second printhead die back-to-back within a die carrier;
• using a registration pin of the die carrier as a reference point to align nozzles of the first printhead die and the second printhead die such that centers of the nozzles of the first printhead die are spaced a first distance from the reference point provided by the registration pin and such that centers of the nozzles of the second printhead die are offset from the nozzles of the first printhead die, the nozzles of the second printhead die being spaced a second distance, different than the first distance, from the reference point provided by the registration pin;
• and
• fixing the position of the first printhead die and the second printhead die within the die carrier, wherein the nozzles of the first printhead die and the second printed die face in a first direction, wherein the first printhead die and the second printhead die have abutting faces extending in first and second parallel planes and wherein the registration pin extends along an axis parallel to the first direction and parallel to the first and second parallel planes, the registration pin being intersected by the first and second parallel planes.