74 Printer operation EN
Service mode
Service mode should be used only by authorized service personnel. The following can be done in
service mode:
!
Verify and set the page count and serial number. These are shown on the configuration page.
!
Set the cold reset paper size default. (This sets the factory default paper size to either Letter or
A4).
!
Turn the diagnostic functions on or off (for software developers only).
!
Clear the event log.
!
Set the interval at which the
PERFORM PRINTER MAINTENANCE
message appears on the control
panel display.
To enter service mode:
1 While turning on the printer, hold down S
ELECT
and C
ANCEL
J
OB
until all of the lights on the
control panel are lit.
2 Press the right side of the M
ENU
key, then press S
ELECT
. The message
SERVICE MODE
temporarily appears and will reappear when the printer completes the initialization process.
3 To exit the service mode, press G
O
.
Note If
READY
appears in the control panel, the keys might have been released too soon, or the wrong keys
were pressed.
Note Before replacing the formatter or firmware DIMM, print a configuration page and a menu map to verify
the current printer settings. Use the information on these pages to reset the customer’s printer settings.
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