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Disable unused protocols and services ........................................................................... 131
Administrator Settings ...................................................................................................... 132
Color Access Control ....................................................................................................... 132
Protected Protocols – HTTPS .......................................................................................... 132
Firewall ............................................................................................................................ 132
Scan-to and Fax-to Folder Authentication ....................................................................... 132
Syslog .............................................................................................................................. 132
Certificates ....................................................................................................................... 133
Signed Firmware .............................................................................................................. 133
Wireless Authentication ................................................................................................... 133
Economy settings ............................................................................................................................. 134
Print with General Office mode ........................................................................................ 134
Power handling ................................................................................................................ 134
Clean the product ............................................................................................................................. 136
Clean the control panel .................................................................................................... 136
Product updates ............................................................................................................................... 137
11 Solve problems ......................................................................................................................................... 139
Customer support ............................................................................................................................. 140
Problem-solving checklist ................................................................................................................. 141
Step 1: Check that the product power is on ..................................................................... 141
Step 2: Check the control panel for error messages ....................................................... 141
Step 3: Test print functionality ......................................................................................... 141
Step 4: Try sending a print job from a computer .............................................................. 141
Step 5: Test the Plug and Print USB Drive printing functionality (X551 Series) .............. 142
Factors that affect product performance .......................................................................... 142
Restore the factory-set defaults ....................................................................................................... 142
Paper feeds incorrectly or becomes jammed ................................................................................... 143
The product does not pick up paper ................................................................................ 143
The product picks up multiple sheets of paper ................................................................ 143
Prevent paper jams .......................................................................................................... 143
Clear jams ........................................................................................................................................ 145
Jam locations ................................................................................................................... 145
Clear jams in Tray 1(Multi-purpose tray) ......................................................................... 145
Clear jams in Tray 2 ......................................................................................................... 149
Clear jams in optional Tray 3 ........................................................................................... 150
Clear jams in the left door ................................................................................................ 151
Clear jams in the output bin ............................................................................................. 153
Clear jams in the duplexer ............................................................................................... 154
Improve print quality ......................................................................................................................... 157
Use the correct paper type setting in the printer driver .................................................... 157
ENWW ix