ii
3.3 ADF SKEW ADJUSTMENT.....................................................................3-17
If the right side of the image is down...................................................3-17
If the left side of the image is down.....................................................3-17
4. TROUBLESHOOTING ................................................................ 4-1
4.1 LED FUNCTION MODE ............................................................................4-1
4.1.1 LED FUNCTION TABLE...................................................................4-1
4.1.2 NORMAL MODE...............................................................................4-2
4.1.3 SELF DIAGNOSTIC MODE..............................................................4-3
4.1.4 BLOWN FUSE CONDITIONS ..........................................................4-3
4.2 SC CODES................................................................................................4-4
5. SERVICE TABLES...................................................................... 5-1
5.1 DIP SWITCH FUNCTION..........................................................................5-1
5.2 SERVICE PROGRAM MODE....................................................................5-1
5.2.1 SP MODE DESCRIPTION................................................................5-1
Entering the service mode ....................................................................5-1
5.2.2 FIRMWARE UPDATE.......................................................................5-4
Scanner firmware update......................................................................5-4
Network firmware update ......................................................................5-5
5.2.3 BACKUP AND RESTORE SD CARD ...............................................5-6
Backup SD card procedure...................................................................5-6
Restore SD card procedure ..................................................................5-6
6. DETAILED SECTION DESCRIPTIONS ...................................... 6-1
6.1 MACHINE OVERVIEW..............................................................................6-1
6.2 DRIVE MECHANISM.................................................................................6-2
ADF drive..............................................................................................6-2
Scanner drive........................................................................................6-2
6.3 BLOCK DIAGRAM.....................................................................................6-3
6.4 CONTROL SYSTEM .................................................................................6-4
MCB......................................................................................................6-4
Network board ......................................................................................6-5
6.5 SCANNING OVERVIEW ...........................................................................6-6
Initializing ..............................................................................................6-6
Scanning...............................................................................................6-6
6.6 DETAILED FUNCTIONS ...........................................................................6-7
6.6.1 PICK-UP AND SEPARATION ..........................................................6-7
6.6.2 ORIGINAL TRANSPORT AND EXIT ................................................6-8
Single–sided originals ...........................................................................6-8
Double-sided originals ..........................................................................6-9
