HP Officejet Pro X551 Printer series User Manual
Page 11

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
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
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
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