Brother DCP-9040CN User Manual page 11

B Option
Option .................................................................................................................. 46
Memory board...................................................................................................... 47
Installing extra memory ................................................................................. 47
C Troubleshooting and routine maintenance
Troubleshooting ...................................................................................................49
If you are having difficulty with your machine ................................................ 49
Improving the print quality .............................................................................54
Error and maintenance messages....................................................................... 65
Document jams..............................................................................................69
Paper jams .................................................................................................... 70
Routine maintenance........................................................................................... 81
Cleaning the outside of the machine .............................................................81
Cleaning the scanner..................................................................................... 82
Cleaning the laser scanner windows .............................................................83
Cleaning the corona wires .............................................................................87
Cleaning the drum unit ..................................................................................90
Replacing the consumable items.........................................................................98
Replacing a toner cartridge .........................................................................101
Replacing the drum unit............................................................................... 106
Replacing the belt unit ................................................................................. 112
Replacing the waste toner box ....................................................................117
Packing and shipping the machine ....................................................................123
Repacking the machine ............................................................................... 124
Machine information ..........................................................................................130
Checking the serial number .........................................................................130
Checking the page counters........................................................................ 130
Checking the remaining life of parts ............................................................ 131
D Menu and features
On-screen programming.................................................................................... 132
Menu table ...................................................................................................132
Memory storage........................................................................................... 132
Menu keys ......................................................................................................... 132
How to access the menu mode ................................................................... 133
Menu table ......................................................................................................... 134
Entering text ...................................................................................................... 140
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