Oki IP-6620 Maintenance Manual page 258

Case 6
The problem below occurred:
X＝2 (PCB-ASSY-ACT3 P24VAR)
Note:
The power supply system related to this error number is generated from the PSU 24V, and the
power is supplied after passing through the interlock relay. So check the Items to be Checked
on the table below, and perform the actions starting from the top until the problem is solved.
No Items to be Checked
1 Check that the printer
detects the interlock switch
position (ON/OFF)
2
Cable between the ACT3
and IPB5
3 PCB-ASSY-ACT3
4 PCB-ASSY-IPB5-100
5 Power supply unit (24V)
Case 7
The problem below occurred:
X=A (PCB-ASSY-ACT3 P38VARHCB)
Note:
The power supply system related to this error number is generated from the PSU 38V, and the
power is supplied to the PCB-ASSY-HCB1M after passing through the interlock relay. So check
the Items to be Checked on the table below, and perform the actions starting from the top until
the problem is solved.
No Items to be Checked
Check that the printer
1
detects the interlock switch
position (ON/OFF)
2 Cable between the ACT3
and IPB5
PCB-ASSY-ACT3
3
PCB-ASSY-IPB5-100
4
Power supply unit (38V)
5
OKI Data Infotech Corporation CONFIDENTIAL
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
Open and close the front cover, and check that the printer
detects the interlock switch position.
If the Printer does not react to the interlock switch position,
check that the PCB-ASSY-ACT3's connector CN2 is connected.
If the error persists, check the interlock switch's connector is
connected.
If the error still persists, replace the interlock switch.
Reconnect the CABLE(ACT-IPB-IF)-ASSY(MW) to the ACT3
and the IPB5.
Replace the PCB-ASSY-ACT3.
Replace the PCB-ASSY-IPB5-100.
Replace the power supply unit (24V).
Open and close the front cover, and check that the printer
detects the interlock switch position.
If the Printer does not react to the interlock switch position,
check that the PCB-ASSY-ACT3's connector CN2 is connected.
If the error persists, check the interlock switch's connector is
connected.
If the error still persists, replace the interlock switch.
Reconnect the CABLE(ACT-IPB-IF)-ASSY(MW) to the ACT3
and the IPB5.
Replace the PCB-ASSY-ACT3.
Replace the PCB-ASSY-IPB5-100.
Replace the power supply unit (38V).
Action
Action
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