HP Color LaserJet 5550 Printer series - Manual (Page 65)

Menu item Description
PRINT/STOP TEST This item isolates print quality
faults more accurately by
stopping the printer in mid-print
cycle. Stopping the printer in
mid-print cycle allows you to
see where the image begins to
degrade. Stopping the printer in
mid-print cycle will cause a jam
that may need to be manually
removed. A service
representative should perform
this test.
ENWW Diagnostics menu 51