Lexmark C780 Printer User Manual


 
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Contents
Print cartridges ...............................................................................................................................................61
Toner waste container ...................................................................................................................................62
Fuser and ITU ................................................................................................................................................62
Recycling Lexmark products ..........................................................................................................................63
Chapter 5: Clearing paper jams ....................................................................................... 64
Identifying jams ..............................................................................................................................................64
Access doors and trays .................................................................................................................................65
Understanding jam messages .......................................................................................................................66
Clearing the entire paper path .......................................................................................................................67
Clearing mailbox, finisher, or output expander jams (Area M) .......................................................................71
Clearing fuser jams ........................................................................................................................................71
Clearing image transfer unit jams ..................................................................................................................73
If you still need help .......................................................................................................................................77
Chapter 6: Administrative support .................................................................................. 78
Adjusting operator panel brightness and contrast .........................................................................................78
Disabling operator panel menus ....................................................................................................................78
Enabling operator panel menus .....................................................................................................................79
Restoring factory default settings ..................................................................................................................79
Adjusting Power Saver ..................................................................................................................................80
Encrypting the disk ........................................................................................................................................80
Setting security using the Embedded Web Server (EWS) .............................................................................81
Black only mode ............................................................................................................................................84
Using the Coverage Estimator .......................................................................................................................85
Size sensing ..................................................................................................................................................85
Configuring printer alerts ...............................................................................................................................86
Chapter 7: Troubleshooting ............................................................................................. 87
Online customer support ................................................................................................................................87
Calling for service ..........................................................................................................................................87
Checking an unresponsive printer .................................................................................................................87
Printing multi-language PDFs ........................................................................................................................87
Solving printing problems ..............................................................................................................................88
Solving mailbox problems ..............................................................................................................................89
Solving option problems ................................................................................................................................90
Solving paper feed problems .........................................................................................................................92
Solving print quality problems ........................................................................................................................92
Solving color quality problems .......................................................................................................................97
Chapter 8: Notices .......................................................................................................... 101