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Menu item Description
SHOW EVENT LOG Displays 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 Allows you to print with one or more print cartridges
removed to help troubleshoot many print problems.
PAPER PATH SENSORS Shows the values of the sensors. Values are updated as
paper passes each sensor. Jobs can be initiated from the
control panel or sent from the computer
PAPER PATH TEST Used to isolate the cause of paper jams.
MANUAL SENSOR TEST Allows you to test the paper path 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. This allows you to see where the
image begins to degrade.
Note, this causes a jam that may need to be removed.
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 the HP Color LaserJet 3500/3550
printer is 10350003 and for the HP Color LaserJet 3700 printer is 10370003.
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.
Table 7-49. Service menu
Menu item Values Description
CLEAR EVENT LOG Allows you to clear the printer’s internal
event log
TOTAL MONO PAGES Range: 0 -
9999999
Allows you to reset the page count after
replacing the formatter. The page count
should reflect the number of pages printed
on the print engine rather than the
formatter.
Table 7-48. Diagnostics menu (continued)
420 Chapter 7 Troubleshooting ENWW