Remove the DC controller PCA ........................................................ 37
Formatter PCA .................................................................................................. 40
Special consideration ....................................................................... 40
Remove the formatter PCA .............................................................. 40
Wireless PCA .................................................................................................... 42
Power supply (high-voltage) .............................................................................. 43
Power supply (low-voltage) ............................................................................... 47
Power supply (fuser) ......................................................................................... 53
Fuser ................................................................................................................. 56
2 Solve problems ............................................................................................................................................. 59
Solve problems checklist .................................................................................................................... 60
Menu map .......................................................................................................................................... 61
Troubleshooting process .................................................................................................................... 62
Pre-troubleshooting checklist ............................................................................................. 62
Power-on checks ............................................................................................................... 64
Tools for troubleshooting .................................................................................................................... 65
Diagrams ........................................................................................................................... 65
Plug/jack locations ............................................................................................ 65
Locations of major components ........................................................................ 66
General timing charts ........................................................................................ 68
General circuit diagram ..................................................................................... 69
Use HP ToolboxFX ............................................................................................................ 70
View the HP Color LaserJet CP1520 Series Toolbox ....................................... 70
HP ToolboxFX sections ..................................................................................... 71
Status ............................................................................................... 71
Event log ........................................................................................... 71
Help .................................................................................................. 71
System Settings ................................................................................ 71
Print Settings .................................................................................... 74
Network Settings .............................................................................. 74
Shop for Supplies ............................................................................. 74
Other Links ....................................................................................... 75
Internal print-quality test pages .......................................................................................... 75
Interpret the Print Quality Page ......................................................................... 75
Clean the product .............................................................................................. 76
Configuration page ............................................................................................ 76
Print-quality troubleshooting tools ...................................................................................... 77
Repetitive image defects ................................................................................... 77
Calibrate the product to align the colors ............................................................ 77
Control panel menus .......................................................................................................... 78
Reports menu .................................................................................................... 78
Quick Forms menu ............................................................................................ 79
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