ix
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.......................................................................61
Document jams.............................................................................................. 66
Paper jams ....................................................................................................67
Routine maintenance...........................................................................................72
Cleaning the outside of the machine .............................................................72
Cleaning the scanner.....................................................................................73
Cleaning the LED heads................................................................................74
Cleaning the corona wires .............................................................................75
Cleaning the drum unit ..................................................................................76
Cleaning the paper pick-up rollers.................................................................81
Calibration .....................................................................................................82
Auto Registration ...........................................................................................82
Manual Registration.......................................................................................83
Replacing the consumable items.........................................................................84
Replacing a Toner cartridge ..........................................................................86
Drum units .....................................................................................................91
Replacing the belt unit ...................................................................................96
Replacing the waste toner box ....................................................................100
Replacing periodic maintenance parts...............................................................105
Machine Information ..........................................................................................105
Checking the Serial Number........................................................................105
Checking the Page Counters.......................................................................105
User Settings List ........................................................................................105
Network Configuration List ..........................................................................106
Checking the remaining life of parts ............................................................ 106
Reset functions............................................................................................106
How to reset the machine............................................................................107
Packing and shipping the machine....................................................................107
D Menu and features 112
On-screen programming....................................................................................112
Menu table...................................................................................................112
Memory storage...........................................................................................112
Menu keys .........................................................................................................112
How to access the menu mode ...................................................................113
Menu table.........................................................................................................114
Entering text ...................................................................................................... 119
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