Oki IP-6620, Руководство по обслуживанию

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OKI Data Infotech Corporation CONFIDENTIAL
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
5-141
5.5.53 System Error 3140: Head Cooling Fan Error
<Description>
The print head cooling fan has been rotating for a specified period, but the print head
temperature did not decrease.
<Faulty part>
(1) COOLING FAN, MW (print head cooling fan)
(2) PCB-ASSY-HCB1M
(3) Carriage cable (FFC)
(4) Robot cable
(5) CABLE(CarriageFan)-ASSY(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 Items to be Checked Action
1 Ambient temperature Check that the ambient temperature is within the operating
temperature range.
2 COOLING FAN, MW (print head
cooling fan) Enter the ACTUATORS menu in the maintenance mode, operate
the print head cooling fan, and check that the fans operate.
If any fan does not operate, check that the harness condition
of the defective fan is proper as follows.
- The connectors are connected securely.
- The cable is not disconnected.
- The harness is not pinched by other parts.
- The cable jacket is not damaged.
If no problem is found with the harness, replace the fans.
3 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 .
4
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.
5 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.
6
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.
7 PCB-ASSY-HCB1M Replace the PCB-ASSY-HCB1M.
8 FFC Replace all four FFCs.
9 Robot cable Replace the robot cable.
10 CABLE(CarriageFan)-ASSY(MW) Replace the CABLE(CarriageFan)-ASSY(MW).