Oki IP-6620 Maintenance Manual page 303

5.5.55 System Error 330X: No Head
<Description>
Could not detect the connection with the print head.
X
1
2
3
4
5
6
7
<Faulty part>
(1) PCB-ASSY-HCB1M
(2) HEAD CABLE, MW (print head cable)
(3) INKJET HEAD,MW (print head)
(4) Carriage cable (FFC): CARRIAGE FFC, MW
(5) Robot cable: ROBOT CABLE, 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.
Note:
For this error, be sure to perform the actions 1 to 5.
No
1 The unit connected to the
PCB-ASSY-HCB1M
2 The width of the V-shaped folded
part on the
PCB-ASSY-HCB1M-side FFC
FFC's external damage
3
5-144
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
Print Head No.
Print head 1
Print head 2
Print head 3
Print head 4
Print head 5
Print head 6
Print head 7
Items to be Checked
OKI Data Infotech Corporation CONFIDENTIAL
(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.
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.
Action