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Diagnostic Tests and Utilities
HP Designjet 4000/4020 Printer Series Service Manual
4. Reset Life Counters
The purpose of this Service Utility is to reset the internal life counters. There
are two submenus that allow you to:
Reset ALL the counters related to a Preventive Maintenance Kit (PMK).
Reset only the counters related to a specific replaced part.
ALWAYS RESET THE LIFE COUNTER OF A CORRESPONDING PART
AFTER REPLACING IT.
Perform the Reset Life Counters utility as follows:
1 In the Service Utilities submenu, scroll to "Reset Life Counters" and press
Enter.
2 You will be given an option to either reset the Life Counter for ALL the parts
related to a Preventive Maintenance Kit (PMK) or to just reset the Life Counter
for a particular part:
a If you select to reset the Life Counter for ALL the parts related to a
Preventive Maintenance Kit (PMK), you will be given an option to reset the
Life Counter of:
– Preventive Maintenance Kit 1 (PMK1).
– Preventive Maintenance Kit 2 (PMK2).
b If you select to reset the Life Counter for a particular part, you will be
given an option to reset the Life Counter of the:
– Scan-Axis Motor.
– Trailing Cable and Tubes.
– Carriage Belt.
– Carriage (Bushing).
– Most Left Spittoon.
– Middle Left Spittoon.
– PHC Spittoons.
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