Oki IP-6620 Maintenance Manual page 280

5.5.39 System Error 253X: Media Heater Error (No interrupt)
<Description>
No heater sequence interruption is generated.
X
1
2
3
<Faulty part>
(1) FUSE
(2) CABLE(TRC-CTL)-ASSY(MW)
(3) CABLE(ACT-IPB-IF)-ASSY(MW)
(4) PCB-ASSY-TRC-MW
(5) PCB-ASSY-ACT3
(6) PCB-ASSY-IPB5-100
<Action>
Check the Items to be Checked on the table below, and perform the actions starting from the top
until the problem is solved.
No
1 Power supply voltage
2 Fuse condition
Heater's harness condition
3
4 CABLE(TRC-CTL)-ASSY(MW)
condition
5 Cable between the ACT3 and
IPB5
6 PCB-ASSY-TRC-MW
7 PCB-ASSY-ACT3
8 PCB-ASSY-IPB5-100
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
Media Heater
Preheater
Printheater
Afterheater
Items to be Checked
OKI Data Infotech Corporation CONFIDENTIAL
Check that the voltage supplied from the socket used for the
heaters is between 200 V and 240 V.
Check that the fuse has not blown. Check the condition of the
harness connected to the fuse to confirm that the connectors
are properly connected.
Check that the harness condition is proper as follows.
- The connectors are connected securely.
- The cable is not disconnected.
- The harness is not pinched by other parts.
- The cable jacket is not damaged.
Check that the cable condition is proper as follows.
- The connectors are connected securely.
- The cable is not disconnected.
- The cable is not pinched by other parts.
- The cable jacket is not damaged.
Reconnect the CABLE(ACT-IPB-IF)-ASSY(MW) to the ACT3
and the IPB5.
Replace the PCB-ASSY-TRC-MW.
Replace the PCB-ASSY-ACT3.
Replace the PCB-ASSY-IPB5-100.
Action
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