3
Control panel ...........................................................................................................................................71
Service call indications ......................................................................................................................79
Control panel keys.............................................................................................................................81
Print a test page ......................................................................................................................................82
Using the Go key ...............................................................................................................................82
Using the printer driver ......................................................................................................................82
Print a Printer Settings page....................................................................................................................83
Using the Go key ...............................................................................................................................83
Using the printer driver ......................................................................................................................83
Print Fonts ...............................................................................................................................................84
Using the Go key ...............................................................................................................................84
Using the printer driver ......................................................................................................................84
Security features......................................................................................................................................85
Ecology features ......................................................................................................................................86
Toner Save ........................................................................................................................................86
Sleep Time ........................................................................................................................................86
Deep Sleep mode..............................................................................................................................86
Power Down mode ............................................................................................................................87
Quiet mode feature ..................................................................................................................................88
Turning Quiet mode on/off.................................................................................................................88
4
Lower tray (LT-5400) ...............................................................................................................................90
SO-DIMM (HL-5450DN(T) only) ..............................................................................................................91
SO-DIMM types .................................................................................................................................91
Installing extra memory .....................................................................................................................92
5
Replacing consumable items...................................................................................................................94
Replacing the drum unit...................................................................................................................103
Cleaning the corona wire.................................................................................................................112
Cleaning the drum unit ....................................................................................................................114
6
Identifying your problem ........................................................................................................................123
Paper jams ......................................................................................................................................127
Improving the print quality......................................................................................................................142
Machine Information ..............................................................................................................................149
Default settings................................................................................................................................149
71
89
94
123
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