Oki IP-6620 Maintenance Manual page 298

5.5.51 System Error 3020: RSM-PTG FIFO Connection Error
<Description>
A connection error occurred with the carriage cable (FFC) connected to the
PCB-ASSY-IPB5-100.
This error occurs if the printer is unable to perform the write test successfully on the FIFO
between PCB-ASSY-IPB5-100(RSM) and PCB-ASSY-HCB1M(PTG).
This error is detected during the printer's operation.
<Faulty part>
(1) PCB-ASSY-HCB1M
(2) PCB-ASSY-IPB5-100
(3) Carriage cable: CARRIAGE FFC, MW
<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 The width of the V-shaped folded
part on the
PCB-ASSY-HCB1M-side FFC
FFC's external damage
2
3 FFC's connector connection
Robot cable's connector
4
connection
5 PCB-ASSY-HCB1M
6 PCB-ASSY-IPB5-100
7 FFC
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
Items to be Checked
OKI Data Infotech Corporation CONFIDENTIAL
Check that the width of the V-shaped folded part on the FFC
is proper. If not, adjust it. For the adjustment procedure, see
6.8.4 PCB-ASSY-HCB1M.
Check the following to ensure that the FFC is not damaged.
- FFC's terminal is detached from its base.
- FFC's edges have not been abraded by friction.
If the FFC is damaged, replace it.
Reconnect the FFC on both the PCB-ASSY-HCB1M side and
the PCB-ASSY-IPB5-100 side.
If the cable terminals are smeared, softly wipe them with a
soft cloth or lint-free paper dampened with ethanol before
connecting them.
Reconnect the robot cable on both the PCB-ASSY-HCB1M
side and PCB-ASSY-ACT3 side.
Before connecting, check that the connector terminals and
cable connection part are not disconnected. If a connection
failure is found, replace the robot cable.
Replace the PCB-ASSY-HCB1M.
Replace the PCB-ASSY-IPB5-100.
Replace all four FFCs.
Action
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