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7. Lower the handle to rest on the carriage cover.
When all of the printheads have been inserted correctly and the printer has accepted them, the printer
beeps.
NOTE: If the printer does not beep when you insert the printhead and the Replace message appears
on the front-panel display, you might need to reinsert the printhead.
8. Close the printer window.
9. The front-panel display confirms that all of the printheads are correctly inserted. The printer starts
checking and preparing the printheads. The default routine process, when all printheads are changed,
takes about 18 minutes. If the printer identifies a problem when preparing the printheads, the process
takes longer, up to 30 minutes. For a single printhead insertion, the time varies between 10 and 20
minutes. After all printheads are checked and prepared, the printhead realignment procedure runs
automatically if paper is loaded. See
Align the printheads on page 71.
Clean (recover) the printheads
To clean the printheads (which often enables them to recover from problems), go to the printer's front panel
and select the
icon, then select Clean printheads. Specify which printheads you would like to clean. You
can clean all of the printheads or only some of them.
Cleaning all printheads takes about 5 minutes. Cleaning any two printheads takes about 3 minutes.
NOTE: Cleaning all printheads uses more ink than cleaning a single pair.
NOTE: HP recommends that you purge the ink from the printheads before printing a job if the printer has
been turned off for more than six weeks or if you are experiencing inconsistent colors from print to print
after long storage periods. Purging the ink from the printheads helps to ensure maximum color consistency;
it is not a remedy for poor printhead health.
ENWW Work with ink system components 67