HP Designjet T620 Printer series User Manual
Page 144
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4.
Find the printhead drop detector beside the stored printhead carriage.
5.
Remove any debris blocking the printhead drop detector.
6.
With a dry lint free cloth, wipe the surface of the drop detector to remove any non-visible debris.
7.
Close the window.
ENWW
Clean the printhead drop detector 141
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