Oki IP-6620 - Page 310

OKI Data Infotech Corporation CONFIDENTIAL
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
5-151
No
Items to be Checked
Action
3
The unit connected to the
PCB-ASSY-HCB1M
(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.
4
The width of the V-shaped folded
part on the
PCB-ASSY-HCB1M-side FFC
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.
5
FFC’s external damage
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.
6
FFC’s connector connection
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.
7
Robot cable’s connector
connection
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.
8
PCB-ASSY-HCB1M
Replace the PCB-ASSY-HCB1M.
9
INKJET HEAD,MW (print head)
Replace the defective print head.
10
PCB-ASSY-IPB5-100
Replace the PCB-ASSY-IPB5-100.
11
FFC
Replace all four FFCs.
12
Robot cable
Replace the robot cable.