Lexmark X6100 Button Monitor.? Background task installed by the drivers for the Lexmark X6100 multifunction printer/scanner/copier.? This background task monitors the X6100 for activity and interacts with? LXBFBMGR? above for operations involving the PC (e.g. scan to e-mail).? Also, for large copy jobs it relays the current copy count back to? LXBFBMGR? so you can view it on your PC.