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ix
BOption 46
Option ..................................................................................................................46
Memory board......................................................................................................47
Installing extra memory .................................................................................47
C Troubleshooting and routine maintenance 49
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 132
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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