HP 510 사용자 설명서

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Printhead errors
The front panel can display the following error messages for the printheads:
NOTE:
An unknown error is displayed when one of the printheads is causing a problem but the system 
cannot detect which one it is. Refer to 
 to solve this problem.
Printhead 
missing
Faulty 
printhead
Printhead 
worn out
Unknown 
error