Hi, some of those switches the plunger can be pulled up and it locks into place for service operations. Would you be able to measure a voltage for me? I have several of the long grey hitachi motors that move the carriage timing belt. I am looking for the power wires for the encoder on the motor. The encoder cable has a grey sheath and inside the wire colors are black white red blue. The encoder cable plugs into the logic board in the stand of the printer. Could you measure the voltages on the 4 pins relative to each other to find which colors are +5 and ground? Thanks in advance.