Oki IP-6620 - 5.5.38 System Error 252 X: Media Heater Error (Target temperature not reached)

OKI Data Infotech Corporation CONFIDENTIAL
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
5-120
5.5.38 System Error 252X: Media Heater Error (Target temperature not reached)
<Description>
After 30 minutes, the heater temperature is still less than the set temperature.
X
Media Heater
1
Preheater
2
Printheater
3
Afterheater
<Faulty part >
(1) CABLE(TRC-CTL)-ASSY(MW)
(2) PCB-ASSY-TRC-MW
(3) PCB-ASSY-ACT3
(4) PCB-ASSY-IPB5-100
(5) For 2521: Supply-side paper guide
(6) For 2523: Take-up side paper guide: FRONT PAPER GUIDE, MW
(7) For 2522: Platen
<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
Ambient temperature
Check that the ambient temperature is within the operating
temperature range.
2
Power supply voltage
Check that the voltage supplied from the socket used for the
heaters is between 200 V and 240 V.
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
Thermistor condition
Check that the thermistor properly contacts the heater.
5
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.
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.