Lexmark C780 - Page 4

4
Contents
Print cartridges ............................................................................................................................................... 61
Toner waste container ................................................................................................................................... 62
Fuser and ITU ................................................................................................................................................ 63
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
Aligning the image transfer unit ..................................................................................................................... 85
Using the Coverage Estimator ....................................................................................................................... 86
Size sensing .................................................................................................................................................. 86
Configuring printer alerts ............................................................................................................................... 87
Chapter 7: Troubleshooting ............................................................................................. 88
Online customer support ................................................................................................................................ 88
Calling for service .......................................................................................................................................... 88
Checking an unresponsive printer ................................................................................................................. 88
Printing multi-language PDFs ........................................................................................................................ 88
Solving printing problems .............................................................................................................................. 89
Solving mailbox problems .............................................................................................................................. 90
Solving option problems ................................................................................................................................ 91
Solving paper feed problems ......................................................................................................................... 93
Solving print quality problems ........................................................................................................................ 93
Solving color quality problems ....................................................................................................................... 98
Chapter 8: Notices .......................................................................................................... 102