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3 Control Panel 75
Control panel ...........................................................................................................................................75
Buttons ...................................................................................................................................................75
Go......................................................................................................................................................76
Cancel ...............................................................................................................................................76
Secure Print.......................................................................................................................................76
+ or - button.......................................................................................................................................76
Back...................................................................................................................................................77
OK .....................................................................................................................................................77
LEDs ........................................................................................................................................................77
LCD .........................................................................................................................................................77
Back light (HL-3070CW only) ............................................................................................................78
LCD messages ..................................................................................................................................78
Reprinting documents........................................................................................................................79
Printing Secure data ..........................................................................................................................80
Using the control panel LCD menu....................................................................................................82
Menu table.........................................................................................................................................83
Default settings..................................................................................................................................94
Calibration .........................................................................................................................................96
Auto Registration ...............................................................................................................................97
Manual Registration...........................................................................................................................98
4Option 99
SO-DIMM.................................................................................................................................................99
Installing extra memory ...................................................................................................................100
5 Routine Maintenance 102
Replacing the consumable items...........................................................................................................102
Toner cartridges ..............................................................................................................................104
Drum units .......................................................................................................................................112
Belt unit............................................................................................................................................118
Waste toner box ..............................................................................................................................122
Cleaning ................................................................................................................................................128
Cleaning the outside of the printer...................................................................................................128
Cleaning the LED head ...................................................................................................................130
Cleaning the corona wires...............................................................................................................131
Cleaning the drum unit ....................................................................................................................134
Cleaning the paper pick-up roller.....................................................................................................140
6 Troubleshooting 142
Identifying your problem ........................................................................................................................142
LCD messages ......................................................................................................................................143
Paper handling ......................................................................................................................................146
Paper jams and how to clear them ........................................................................................................147
Jam Tray 1 (Paper jam inside the paper tray) .................................................................................148
Jam Rear (Paper jam behind the back cover) .................................................................................149
Jam Inside (Paper jam inside the printer)........................................................................................151
Improving the print quality......................................................................................................................154
Solving print problems ...........................................................................................................................161
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