HP OFFICEJET PRO X476

Fax functions and operation ............................................................................................................... 37
Computer and network security features ........................................................................... 37
PSTN operation ................................................................................................................. 37
The fax subsystem ............................................................................................................. 37
Fax card in the fax subsystem ........................................................................................... 38
Fax page storage in flash memory .................................................................................... 39
2 Solve problems ............................................................................................................................................. 41
Restore the factory-set defaults ......................................................................................................... 42
Menu access ...................................................................................................................................... 42
Access the Engineering menu ........................................................................................... 42
Access the Support Menu .................................................................................................. 42
Place the product into MFG (manufacturing) mode ........................................................... 43
Place the product into Audit mode ..................................................................................... 43
Perform tap tests and interpret results ............................................................................................... 44
10 tap test results (OOBE states) ...................................................................................... 44
12 tap test results (REDI sensor values) ........................................................................... 46
61 tap results (Align & color calibrations) .......................................................................... 47
909 tap test results (BDD status) ....................................................................................... 48
Troubleshooting flowchart .................................................................................................................. 50
Front-panel error codes ...................................................................................................................... 52
Control-panel messages .................................................................................................................... 58
Error-related symptoms ...................................................................................................................... 66
Check symptoms ................................................................................................................................ 67
Power and electronics ....................................................................................................... 67
Solve print quality problems ............................................................................................... 69
Solve paper handling problems ......................................................................................... 92
Solve product connectivity problems ............................................................................... 113
Solve copy/scan problems ............................................................................................... 120
Solve fax problems .......................................................................................................... 129
Solve memory device problems ....................................................................................... 142
Index ................................................................................................................................................................. 143
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