xiii
C Troubleshooting and routine maintenance 112
Troubleshooting.................................................................................................112
If you are having difficulty with your machine..............................................112
Improving the print quality ...........................................................................119
Setting dial tone detection ...........................................................................130
Telephone line interference .........................................................................130
Error and maintenance messages.....................................................................131
Checking if the machine has faxes in its memory .......................................137
Transferring faxes to another fax machine..................................................137
Transferring faxes to your PC......................................................................137
Document jams............................................................................................138
Paper jams ..................................................................................................139
Routine maintenance.........................................................................................150
Cleaning the outside of the machine ...........................................................150
Cleaning the scanner...................................................................................151
Cleaning the laser scanner windows ...........................................................152
Cleaning the corona wires...........................................................................156
Cleaning the drum unit ................................................................................159
Replacing the consumable items.......................................................................166
Replacing a toner cartridge .........................................................................169
Replacing the drum unit...............................................................................174
Replacing the belt unit.................................................................................180
Replacing the waste toner box ....................................................................185
Packing and shipping the machine....................................................................191
Repacking the machine...............................................................................192
Machine information ..........................................................................................199
Checking the serial number.........................................................................199
Checking the page counters........................................................................199
Checking the remaining life of parts ............................................................200
D Menu and features 201
On-screen programming....................................................................................201
Menu table...................................................................................................201
Memory storage...........................................................................................201
Menu keys .........................................................................................................201
How to access the menu mode ...................................................................202
Menu table.........................................................................................................203
Entering text ......................................................................................................219
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