Confidential
1.3.25 Check fan operation (function code: 78) ..................................................5-40
1.3.26 Display machine log information (function code: 80)................................5-41
1.3.27 Display machine error code (function code: 82)....................................... 5-44
1.3.28 Send communication log information to telephone line
(function code: 87)....................................................................................5-44
1.3.29 Reset counters for periodic replacement parts (function code: 88).......... 5-44
1.3.30 Quit maintenance mode (function code: 99) ............................................5-45
2. OTHER SERVICE FUNCTIONS .................................................................................5-46
2.1 Change ON/OFF Setting for Deep Sleep Mode ..................................................5-46
2.2 Change ON/OFF Setting for Sleep Mode............................................................5-47
2.3 Reset Periodic Replacement Parts......................................................................5-48
2.4 Reset Developer Roller Counter..........................................................................5-49
2.5 Display ROM Version ..........................................................................................5-50
2.6 Perform Demo Printing ........................................................................................ 5-50