Printhead Identification Systems and Methods

A method, comprising:

• storing, in a memory, a test command defining a test pattern corresponding to an array of effector element activation states;
• at a controller connected with the memory, transmitting the test command to an interface configured to connect the controller with an installed effector assembly from a plurality of possible effector assembles including at least a first effector assembly and a second effector assembly, the installed effector assembly being one of (i) the first effector assembly having a first array of effector elements, or (ii) the second effector assembly having a second array of effector elements, the second array being different from the first array;
• at the controller, detecting whether effector elements of the installed effector assembly are activated according to the test command;
• and
• at the controller, identifying the installed effector assembly as either the first effector assembly or the second effector assembly based on the detection.