Oki IP-6620, Maintenance Manual

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OKI Data Infotech Corporation CONFIDENTIAL
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
5-121
5.5.39 System Error 253X: Media Heater Error (No interrupt)
<Description>
No heater sequence interruption is generated.
X Media Heater
1 Preheater
2 Printheater
3 Afterheater
<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 Items to be Checked Action
1 Power supply voltage
Check that the voltage supplied from the socket used for the
heaters is between 200 V and 240 V.
2 Fuse condition 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.
3
Heater’s harness condition
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.
4 CABLE(TRC-CTL)-ASSY(MW)
condition 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.
5 Cable between the ACT3 and
IPB5 Reconnect the CABLE(ACT-IPB-IF)-ASSY(MW) to the ACT3
and the IPB5.
6 PCB-ASSY-TRC-MW Replace the PCB-ASSY-TRC-MW.
7 PCB-ASSY-ACT3 Replace the PCB-ASSY-ACT3.
8 PCB-ASSY-IPB5-100 Replace the PCB-ASSY-IPB5-100.