Device and method for aligning printheads

A method for adjusting printheads (2) relative to one another, the printheads each including a nozzle plate (4) having multiple nozzles (3) for printing, and having at least one round hole (13) and/or at least one elongated hole (14) in the nozzle plate for manufacturing and/or assembly purposes, characterized in that multiple printheads (2) are inserted into an assembly template (16) for multiple printheads (2), wherein for each printhead (2) at least one counterpart is provided, preferably in the form of a pin (17, 18), that fits exactly into at least one round hole (13) and/or at least one elongated hole (14) in the corresponding nozzle plate (4) in such a way that each pair of round hole counterpart and/or elongated hole counterparts (17, 18) engages with the corresponding round holes and elongated hole (13, 14) in the nozzle plate (4), so that the nozzles (3) of all printheads (2) are aligned with one another in the desired manner, and the printheads (2) that are adjusted relative to one another in this way are then screwed onto the printhead retaining plate (5) or affixed in some other way before the assembly template (16) is removed.