Solve Problems If you have a problem using your WorkForce 600 Series, check these sections for guidance in diagnosing and solving the problem: Checking for Software Updates Problem-solving Tools Problems and Solutions Re-installing Software Getting More Help Note:If the On light is solid green and the display screen goes dark, your WorkForce 600 Series is in sleep mode to save power. This occurs if 13 minutes elapse without a button being pressed. Press any button (except the On button) to wake it up.