The Keys on the Control Panel Do Not Function
Perform one of the following solutions according to the cause.
<Cause 1 > Here is data remaining in the memory. (The 
Job indicator is on.)
Solution | Press [  ] ( Online) to place the printer offline, and then select [Form Feed] in the Reset menu. |
<Cause 2> The keylock function is enabled. (The "Pi" alarm sounds when the key is pressed and <Key locked.> appears in the display.)
Solution | Disable the keylock function from the Remote UI. Contact the printer administrator. |