Brother MFC 9840CDW - Manual (Page 15)

xiii
C Troubleshooting and routine maintenance 114
Troubleshooting.................................................................................................114
If you are having difficulty with your machine .............................................. 114
Improving the print quality ...........................................................................121
Setting dial tone detection ...........................................................................132
Telephone line interference .........................................................................132
Error and maintenance messages..................................................................... 133
Checking if the machine has faxes in its memory ....................................... 139
Transferring faxes to another fax machine .................................................. 139
Transferring faxes to your PC...................................................................... 139
Document jams............................................................................................140
Paper jams .................................................................................................. 141
Routine maintenance......................................................................................... 152
Cleaning the outside of the machine ...........................................................152
Cleaning the scanner................................................................................... 153
Cleaning the laser scanner windows ...........................................................154
Cleaning the corona wires ...........................................................................158
Cleaning the drum unit ................................................................................161
Replacing the consumable items.......................................................................169
Replacing a toner cartridge .........................................................................172
Replacing the drum unit............................................................................... 177
Replacing the belt unit ................................................................................. 183
Replacing the waste toner box ....................................................................188
Packing and shipping the machine ....................................................................194
Repacking the machine ............................................................................... 195
Machine information ..........................................................................................202
Checking the serial number.........................................................................202
Checking the page counters........................................................................ 202
Checking the remaining life of parts ............................................................ 203
D Menu and features 204
On-screen programming.................................................................................... 204
Menu table...................................................................................................204
Memory storage........................................................................................... 204
Menu keys ......................................................................................................... 204
How to access the menu mode ................................................................... 205
Menu table......................................................................................................... 206
Entering text ...................................................................................................... 222