Please follow the below mentioned step by step procedure to resolve the issue.
Press the menu/enter button on the machine
Press the arrow mark(>) button once to select Fax functions , and then press menu/enter
Press to select Clear saved faxes , and then press menu/enter .
Press menu/enter to confirm deletion.
Now the machine will work normal.
Press the menu/enter button on the machine
Press the arrow mark(>) button once to select Fax functions , and then press menu/enter
Press to select Clear saved faxes , and then press menu/enter .
Press menu/enter to confirm deletion.
Now the machine will work normal.