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Confidential
CHAPTER 5 SERVICE FUNCTIONS
1. MAINTENANCE MODE................................................................................................................  5-1
1.1 How to Enter Maintenance Mode ........................................................................................  5-1
1.1.1 Method of entering end-user accessible maintenance mode................................  5-1
1.1.2 Method of entering maintenance mode for service personnel ..............................  5-1
1.2 List of Maintenance Mode Functions...................................................................................  5-2
1.3 Details of Maintenance Mode Functions..............................................................................  5-3
1.3.1 Initialize EEPROM parameters (function code: 01, 91).........................................  5-3
1.3.2 Print white level/black level data for document scanning compensation
(function code: 05).................................................................................................  5-4
1.3.3 Move CIS unit to transportation position (function code: 06).................................  5-6
1.3.4 ADF performance test (function code: 08) ............................................................  5-6
1.3.5 Print test pattern (function code: 09) .....................................................................  5-7
1.3.6 Set worker switches (WSW) and print worker switch setting data 
(function code: 10, 11)...........................................................................................  5-8
1.3.7 Check LCD operation (function code: 12) ...........................................................  5-12
1.3.8 Check control panel button operation (function code: 13)...................................  5-13
1.3.9 Display software version (function code: 25).......................................................  5-15
1.3.10 Check sensor operation (function code: 32)........................................................  5-16
1.3.11 Display LAN connection status (function code: 33).............................................  5-18
1.3.12 Set PC print functions (function code: 43)...........................................................  5-19
1.3.13 Change USB No. return value / Adjust left-end print start position 
on second side when duplex printing / Change ON/OFF setting 
for Deep Sleep function (function code: 45) ........................................................  5-22
1.3.14 Set country/language (function code: 52)............................................................  5-24
1.3.15 Transfer received fax data/log information (function code: 53) ...........................  5-25
1.3.16 Fine-tune scanning position (function code: 54)..................................................  5-27
1.3.17 Acquire white level data and set CIS scan area (function code: 55) ...................  5-27
1.3.18 Adjust touch panel (function code: 61) ................................................................  5-28
1.3.19 Continuous print test (function code: 67).............................................................  5-29
1.3.20 Print frame pattern (single-side printing) (function code: 69) ..............................  5-31
1.3.21 Print frame pattern (duplex printing) (function code: 70) .....................................  5-33
1.3.22 Print solid pattern (function code: 71)..................................................................  5-34
1.3.23 Setting by country (function code: 74).................................................................  5-35
1.3.24 Print maintenance information (function code: 77)..............................................  5-38
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