Employee was trapped in Step 1,2 Aggl Shop elevator at 8:00AM. The employee called the control room and MEI was called to repair the elevator. The main gate and Em. svcs were not notified until 850AM. The employee left the elevator unharmed at approximately 9:06 AM. The elevator failure was caused by a door control issue that appears to have frozen. MSHA was notified at 9:14 am