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HP LaserJet 4000 - Service Mode

HP LaserJet 4000
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EN
Service Mode
3-29
Service Mode
Service Mode should be used only by authorized service personnel.
While in Service Mode, you can:
z
Verify and set the page count and serial number. These are
displayed on the Configuration Page.
z
Set the Cold Reset Default. (This sets the factory default paper
size to either Letter or A4).
z
Turn the Diagnostic Functions on or off (for software developers
only).
z
Clear the event log.
z
Set the interval at which the
PERFORM PRINTER MAINTENANCE
message appears on the control panel.
To enter Service Mode:
1. Hold down
[Select]
and
[Cancel Job]
while turning on the
printer. (If the control panel reads
INITIALIZING
, the keys were
released too soon.)
2. Press the right side of the
[Menu]
key, then press
[Select]
. The
message
SERVICE MODE
is displayed. To exit the Service Mode
press
[Go]
.

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