HP (Hewlett-Packard) L7400 All in One Printer User Manual


 
Configure the device (Windows) .............................................................................................50
Direct connection ..............................................................................................................50
Install the software before connecting the device (recommended) .............................50
Connect the device before installing the software .......................................................51
Share the device on a locally shared network ............................................................. 51
Configure the device (Mac OS) ..............................................................................................52
Install the software for a direct connection ........................................................................52
Share the device on a locally shared network ..................................................................52
Uninstall and reinstall the software .........................................................................................53
8 Maintain and troubleshoot
Supported ink cartridges .........................................................................................................56
Replace the ink cartridges ......................................................................................................56
Maintain the printheads ..........................................................................................................57
Check printhead health .....................................................................................................58
Print the print quality diagnostic page ...............................................................................58
Align the printheads ..........................................................................................................59
Calibrate the linefeed ........................................................................................................60
Clean the printheads .........................................................................................................60
Clean the printhead contacts manually .............................................................................60
Replace the printheads .....................................................................................................63
Store printing supplies ............................................................................................................64
Store ink cartridges ...........................................................................................................65
Store printheads ...............................................................................................................65
Clean the device .....................................................................................................................65
Clean the scanner glass ...................................................................................................65
Clean the exterior .............................................................................................................66
Troubleshooting tips and resources ........................................................................................66
Solve printing problems ..........................................................................................................66
The device shuts down unexpectedly ...............................................................................67
Error message appears on control-panel display .............................................................. 67
The device is not responding (nothing prints) ...................................................................67
Device does not accept printhead ..................................................................................... 68
Device takes a long time to print .......................................................................................68
Blank or partial page printed .............................................................................................68
Something on the page is missing or incorrect .................................................................69
Placement of the text or graphics is wrong .......................................................................69
The device prints half a page, then ejects the paper ........................................................70
Poor print quality and unexpected printouts ............................................................................70
Poor quality printouts ........................................................................................................71
Meaningless characters print ............................................................................................71
Ink is smearing .................................................................................................................72
Ink is not filling the text or graphics completely .................................................................72
Output is faded or dull colored ..........................................................................................72
Colors are printing as black and white ..............................................................................72
Wrong colors are printing ..................................................................................................73
Printout shows bleeding colors .........................................................................................73
Colors do not line up properly ...........................................................................................73
Lines or dots are missing from text or graphics ................................................................73
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