Oki IP-6620 Maintenance Manual page 203

<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
Firmware
2 Connection of the harness
connector on the ambient
temperature thermistor
3 Condition of the harness on
the ambient temperature
thermistor
4 Ambient temperature
thermistor
5 PCB-ASSY-ACT3
6 PCB-ASSY-IPB5-100
When the ambient temperature is low
PLEASE WARM THE ROOM
<Description>
The ambient temperature where the printer is installed is 5°C or lower, or 35°C or higher.
<Action>
If the problem persists when the ambient temperature is between 5°C and 35°C, 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 Firmware
2 Connection of the ambient
temperature thermistor
harness
3 Condition of the ambient
temperature thermistor
harness
4 Ambient temperature
thermistor
5 PCB-ASSY-ACT3
6 PCB-ASSY-IPB5-100
5-44
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
Items to be Checked
Items to be Checked
OKI Data Infotech Corporation CONFIDENTIAL
Upgrade the firmware to the latest version.
Check that the harness connector is securely connected to the
board's connector.
Check that the harness condition is proper as follows.
- The cable is not disconnected.
- The harness is not pinched by other parts.
- The cable jacket is not damaged.
If a problem is found, replace the harness.
Replace the part.
Note
The ambient temperature thermistor is fixed on the SUBTANK
BOX ASSY.
Replace the PCB-ASSY-ACT3.
Replace the PCB-ASSY-IPB5-100.
When the ambient temperature is high
DECREASE ROOM TEMP
Upgrade the firmware to the latest version.
Check that the harness connectors are correctly connected to the
board connectors.
Check that the harness is not broken, trapped by other parts, or
damaged. Replace it if a problem is found.
Replace the part.
Caution: The ambient temperature thermistor is secured to the
subtank unit.
Replace the PCB-ASSY-ACT3.
Replace the PCB-ASSY-IPB5-100.
Action
Action