Brother DCP-9042CDN User Manual page 7

B Optional memory
Memory board...................................................................................................... 43
Installing extra memory ................................................................................. 43
C Troubleshooting and routine maintenance
Troubleshooting ...................................................................................................45
Solutions to common problems ..................................................................... 45
Improving the print quality .............................................................................51
Error and maintenance messages....................................................................... 62
Document jams..............................................................................................66
Paper jams .................................................................................................... 67
Routine maintenance........................................................................................... 76
Cleaning the outside of the machine .............................................................77
Cleaning the scanner..................................................................................... 77
Cleaning the laser scanner windows .............................................................78
Cleaning the corona wires .............................................................................82
Cleaning the drum unit ..................................................................................86
Replacing the consumable items.........................................................................94
Replacing a toner cartridge ...........................................................................96
Replacing the drum unit............................................................................... 101
Replacing the belt unit ................................................................................. 108
Replacing the waste toner box ....................................................................113
How to change the LCD language............................................................... 118
Packing and shipping the machine ....................................................................119
Repacking the machine ............................................................................... 120
Machine information ..........................................................................................126
Checking the serial number .........................................................................126
Checking the page counters........................................................................ 126
Checking the remaining life of parts ............................................................ 127
D Menu and features
On-screen programming.................................................................................... 128
Menu table ...................................................................................................128
Memory storage........................................................................................... 128
Menu keys ......................................................................................................... 128
How to access the menu mode ................................................................... 129
Menu table ......................................................................................................... 130
Entering text ...................................................................................................... 135
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