Oki IP-6620 Maintenance Manual page 261

<Action>
Check the Items to be Checked on the table below, and perform the actions starting from the top
until the problem is solved.
Note:
If this error occurs, be sure to perform the actions at the steps 1 to 5.
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 The unit connected to the
PCB-ASSY-HCB1M
PCB-ASSY-HCB1M
6
7 INKJET HEAD,MW (print head)
8 PCB-ASSY-IPB5-100
FFC
9
Robot cable
10
11 PCB-ASSY-ACT3
5-102
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.
(1) Check that the print head cable jacket is not damaged. If
damaged, replace it.
(2) If not damaged, reconnect it and restart the printer.
(3) If the problem persists, replace the cable of the faulty print
head with one of a print head operating normally. If the
error number changes, the faulty part is the print head
cable so replace it.
(4) Connect the print head cable to another print head. If the
error number changes for the newly connected print head,
check the other items to be checked below.
*The print head cable for the seventh print head is used only for
7-color printers.
Replace the PCB-ASSY-HCB1M.
Replace the faulty print head.
Replace the PCB-ASSY-IPB5-100.
Replace all four FFCs.
Replace the robot cable.
Replace the PCB-ASSY-ACT3.
Action