Patent ID: 7866784

Claim:
A diagnostic probe assembly for a tester which is used to diagnose printhead integrated circuits, the probe assembly comprising: a support assembly; a controller board mounted on the support assembly and having a processor configured to generate signals for testing a printhead integrated circuit; a routing board mounted on the support assembly and in operative signal communication with the controller board, the routing board configured to multiplex the generated signals for respective dies of the printhead integrated circuits; a probe interface mounted on the support assembly and in operative signal communication with the routing board, the probe interface configured for relaying the multiplexed test signals to and from the respective dies; in which the probe interface includes an adaptor board having a converter for converting the signals to printhead integrated circuit electrical signals; and wherein the routing board includes board connectors for receiving the controller board and adaptor board, the routing board having power circuits for supplying said controller and adaptor boards with electrical power.