Brother MFC-9450CDN - Manual (Page 14)

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C Troubleshooting and routine maintenance 108
Troubleshooting .................................................................................................108
If you are having difficulty with your machine ..............................................108
Improving the print quality ...........................................................................115
Setting dial tone detection ...........................................................................126
Telephone line interference .........................................................................126
Error and maintenance messages.....................................................................127
Checking if the machine has faxes in its memory .......................................132
Transferring faxes to another fax machine ..................................................132
Transferring faxes to your PC......................................................................132
Document jams............................................................................................133
Paper jams ..................................................................................................134
Routine maintenance.........................................................................................145
Cleaning the outside of the machine ...........................................................145
Cleaning the scanner...................................................................................146
Cleaning the laser scanner windows ...........................................................147
Cleaning the corona wires ...........................................................................151
Cleaning the drum unit ................................................................................155
Replacing the consumable items.......................................................................163
Replacing a toner cartridge .........................................................................166
Replacing the drum unit...............................................................................171
Replacing the belt unit .................................................................................178
Replacing the waste toner box ....................................................................183
Packing and shipping the machine ....................................................................188
Repacking the machine ...............................................................................189
Machine information ..........................................................................................196
Checking the serial number.........................................................................196
Checking the page counters........................................................................196
Checking the remaining life of parts ............................................................196
D Menu and features 197
On-screen programming....................................................................................197
Menu table...................................................................................................197
Memory storage...........................................................................................197
Menu keys .........................................................................................................197
How to access the menu mode ...................................................................198
Menu table .........................................................................................................199
Entering text.......................................................................................................212