12 Chapter 1 Troubleshooting control panel messages EN
CLOSE UPPER FRONT DRAWER
The drawer that holds the imaging drum (the drum drawer) is open.
Switch SW3 indicates that the drawer is open. When the drawer is
closed, a plastic protrusion on the lower left corner of the drawer pivots
an arm that allows SW3 to toggle to the open position.
1 Open the drawer and firmly push the drawer closed using one hand
in the middle of the drawer.
2 If the message persists, remove the printer’s left-side cover and
inspect the mechanical linkage that closes SW3.
3 Refer to the wiring diagram and verify the wiring. The two-wire
connector should be firmly seated to SW3 and the wiring harness
should be firmly seated to connector J1003 of the DC controller
PCB.
4 If the message persists, use an ohmmeter to verify functionality of
SW3.
5 Verify FM3 (in the front of the Imaging drum drawer) is functioning
properly. The fan con-nects via J77 to J1022 on the DC Controller.
Note
Closing the drawer also closes SW4 (the drum drawer switch). When
SW4 is open, the +24 V supply is disabled. This safety feature
protects the operator from any high voltages when the drum or ITB
drawers are open.
COLD RESET (4500)
-or-
RESTORE FACTORY SETTINGS (4550)
The cold reset power-up sequence has been entered.
l Most printer variables will reset to their factory default values.
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