Table 7-46. Diagnosticsmenu
Menu item Description
PRINT EVENT LOG Prints an event log that shows the last 50 entries
in the printer event log, starting with the most
recent.
SHOW EVENT LOG Shows the last 50 events on the control panel
display, starting with the most recent.
PQ TROUBLESHOOTING Prints a series of print-quality assessment pages
that help troubleshoot any print-quality problems.
DISABLE CARTRIDGE CHECK Use this item to remove a print cartridge to help
determine which cartridge is the source of the
problem.
Paper Path SENSOR TEST
(HP Color LaserJet 5550 models only)
Use this item to test each of the printer sensors
to determine if they are working correctly and
display the status of each sensor.
PAPER PATH TEST Use this item to test the paper-handling features
of the printer, such as the configuration of the
trays.
SENSOR TEST
(HP Color LaserJet 5500 models only)
Use this item to test the paper-path sensors and
switches for correct operation.
MANUAL SENSOR TEST
(HP Color LaserJet 5550 models only)
Use this item to manually test the sensors and
switches for correct operation.
COMPONENT TEST Activates individual parts independently to
isolate noise, leaking, and other hardware issues.
PRINT/STOP TEST Isolates print-quality faults more accurately by
stopping the printer in mid print cycle. Stopping
the printer in mid-cycle allows you to see where
the image begins to degrade.
COLOR BAND TEST
(HP Color LaserJet 5550 models only)
Use this item to print a color band test page that
is used to identify arching in the high-voltage
power supply.
Service menu
The Service menu is PIN protected for added security. Only authorized service people have
access to the service menu. When you select SERVICE from the list of menus, you are
prompted to enter your 8-digit PIN number. The PIN for this printer is 04555502.
1. Press
or until the first digit of the PIN is displayed.
2. Press
to save the digit. The display will replace the digit with an asterisk.
3. Repeat steps 1 and 2 until all eight digits are entered.
4. Press
at any time to move to the previous digit.
Use the Service menu to reset counts, clear the event log, enter the serial number, enter the
date the printer was first used, and reset the default paper size.
ENWW Control panel troubleshooting 381
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