Product Manual

Chapter 3 Error Correction 3-19
3. 2. 2 Upper Frame Unit / Top Cover
(Front Cover Open)
If either Upper Frame Unit or Top Cover is open, the UI screen shows “Door Open”.
Check if the Upper Frame Unit and the Top Cover are closed firmly.
Correct: Both Top Cover / Upper Frame Unit closed firmly
Wrong: Top Cover open Wrong: Upper Frame Unit open
Top Cover
Upper Frame Unit
OK
Push backward
NGNG
Push forward