HP Officejet Pro L7380 All-in-One Printer - Manual (Page 10)

10 Maintain and troubleshoot
Supported ink cartridges .......................................................................................................143
Replace the ink cartridges ....................................................................................................144
Maintain the printheads ........................................................................................................145
To check printhead health ..............................................................................................145
To print the print quality diagnostic page ........................................................................145
To align the printheads ...................................................................................................146
To calibrate the linefeed .................................................................................................147
To clean the printheads ..................................................................................................147
To clean the printhead contacts manually ......................................................................147
To replace the printheads ...............................................................................................150
Store printing supplies ..........................................................................................................152
Store ink cartridges .........................................................................................................152
Store printheads .............................................................................................................152
Clean the device ...................................................................................................................152
Clean the scanner glass .................................................................................................153
Clean the automatic document feeder (ADF) .................................................................. 153
Clean the exterior ...........................................................................................................157
Troubleshooting tips and resources ......................................................................................157
Solve printing problems ........................................................................................................158
The device shuts down unexpectedly .............................................................................158
Error message appears on control-panel display ............................................................ 158
The device is not responding (nothing prints) .................................................................158
Device does not accept printhead ................................................................................... 159
Device takes a long time to print .....................................................................................160
Blank or partial page printed ...........................................................................................160
Something on the page is missing or incorrect ...............................................................161
Placement of the text or graphics is wrong .....................................................................161
The device prints half a page, then ejects the paper ......................................................162
Poor print quality and unexpected printouts ..........................................................................162
Poor quality printouts ......................................................................................................162
Meaningless characters print ..........................................................................................163
Ink is smearing ................................................................................................................ 163
Ink is not filling the text or graphics completely ...............................................................164
Output is faded or dull colored ........................................................................................164
Colors are printing as black and white ............................................................................164
Wrong colors are printing ................................................................................................164
Printout shows bleeding colors .......................................................................................165
Colors do not line up properly .........................................................................................165
Lines or dots are missing from text or graphics ..............................................................165
Solve paper-feed problems ...................................................................................................165
Optional Tray 2 cannot be inserted .................................................................................165
Another paper-feed problem is occurring ........................................................................165
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