Oki IP-6620 Maintenance Manual page 243

5.5.7 System Error 1400: PCB-ASSY-ACT3 Connection Error
<Description>
Could not confirm the connection with the PCB-ASSY-ACT3.
<Faulty part>
(1) PCB-ASSY-ACT3
(2) PCB-ASSY-IPB5-100
<Action>
Restart the printer.
If the error persists, 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
PCB-ASSY-IPB5-100 and
PCB-ASSY-ACT3 cables.
2 PCB-ASSY-ACT3
3 PCB-ASSY-IPB5-100
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Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
Items to be Checked
OKI Data Infotech Corporation CONFIDENTIAL
Action
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.
Replace the PCB-ASSY-ACT3.
Replace the PCB-ASSY-IPB5-100.