CONTENTS 5
Fan 86
Power supply 87
Hard disk drives 91
Switch bank assembly 97
DVD drive 101
Restoring and verifying functionality after service 104
SYSTEM AND USER SOFTWARE 105
Overview 105
Before you install system software 105
Installing system software 107
System updates 109
TROUBLESHOOTING 110
Troubleshooting process 110
Preliminary on-site checkout 111
Checking external connections 112
Checking internal components 113
Inspecting the system 114
Normal startup sequence 119
Error messages and conditions 120
Diagnostic tools 133
Copier interface board diagnostics 133
Test E-mail 134
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