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Software for networks .......................................................................................................................66
About emulation modes.....................................................................................................................67
Automatic emulation selection (HL-4050CDN / HL-4070CDW only).................................................67
Automatic interface selection.............................................................................................................67
4 Control Panel 68
Control panel ...........................................................................................................................................68
Buttons ...................................................................................................................................................69
Go......................................................................................................................................................69
Cancel ...............................................................................................................................................69
Reprint...............................................................................................................................................70
+ or - button.......................................................................................................................................70
Back...................................................................................................................................................70
OK .....................................................................................................................................................70
LEDs........................................................................................................................................................71
LCD .........................................................................................................................................................71
Back light...........................................................................................................................................71
LCD messages..................................................................................................................................72
Reprinting documents........................................................................................................................73
Using the control panel LCD menu....................................................................................................76
Menu table.........................................................................................................................................77
Default settings..................................................................................................................................88
Calibration .........................................................................................................................................89
Auto Registration...............................................................................................................................90
Manual Registration...........................................................................................................................91
5 Options 92
Lower tray (LT-100CL) (HL-4050CDN / HL-4070CDW only)...................................................................92
SO-DIMM.................................................................................................................................................93
SO-DIMM types.................................................................................................................................93
Installing extra memory .....................................................................................................................94
6 Routine Maintenance 96
Replacing the consumable items.............................................................................................................96
Toner cartridges ................................................................................................................................98
Drum unit.........................................................................................................................................105
Belt unit............................................................................................................................................111
Waste toner box ..............................................................................................................................116
Cleaning ................................................................................................................................................122
Cleaning the outside of the printer...................................................................................................122
Cleaning the inside of the scanner windows ...................................................................................123
Cleaning the corona wires .....................................................................................................................127
Cleaning the drum unit...........................................................................................................................132
Shipping the printer................................................................................................................................134
Repacking Instructions ....................................................................................................................134
7 Troubleshooting 142
Identifying your problem ........................................................................................................................142
LCD messages ......................................................................................................................................143