Xerox Phaser 7700 7750 7760 "Close Left Door A" Error

If your Xerox Phaser 7700, 7750, or 7760 is displaying "Close Left Door A" even when the door is closed, you need to check and possibly replace the interlock actuator.

Xerox Phaser 7700,7750,7760 interlock actuator:  Part# - 011E10711.