Brother MFC-3340CN Service Manual page 251

9.2.6 Possible component defects and resulting problems.......................................9-40
[ 1 ] ADF mechanism.....................................................................................9-40
[ 2 ] Scanner mechanism...............................................................................9-41
[ 3 ] Head/carriage unit drive and purge mechanisms ....................................9-42
[ 4 ] Print head mechanism............................................................................9-43
[ 5 ] ASF mechanism.....................................................................................9-44
[ 6 ] Paper feeding mechanism......................................................................9-44
[ 7 ] Speaker..................................................................................................9-44
[ 8 ] Control panel..........................................................................................9-45
[ 9 ] PCBs......................................................................................................9-45
[ 10 ] Adjustments/data in the memories..........................................................9-46
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