Hitachi UX Twin Nozzle - Page 275

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6.2.19 Ambient Temperature Sensor Fault
6.2.20 Cooling Fan Fault
Ambient Temperature
Sensor Fault
Disconnect the EZJ133 board
CN38 connector and reconnect it.
Replace the print head. *1
Replace the EZJ133 board. *2
Resume the
operation.
Does the fault recur?
Yes
No
Does the fault recur?
Yes
No
(*1)： When you replace the printhead, refer to
“4.13 Print Head Replacement Procedure”.
(*2): When you replace EZJ133 board, refer to
[Replacement procedures of EZJ133 board]
in “3.3.1 EZJ133 board (MPU board)”.
[Caution]
Be sure to check that there is no wrong
connection of harnesses by referring to
[Connector numbers and Identifying method of
harnesses] in “3.3.20 Electrical Connection
Diagram”.
(*1): When you replace DC fan, [Replacement
procedures of DC fan] in “3.3.17 DC fan”.
(*2): When you replace EZJ133 board, refer to
[Replacement procedures of EZJ133 board] in
“3.3.1 EZJ133 board (MPU board)”.
[Caution]
Be sure to check that there is no wrong connection of
harnesses by referring to [Connector numbers and
Identifying method of harnesses] in “3.3.20 Electrical
Connection Diagram”.
Cooling Fan Fault
Disconnect the EZJ133 board
CN29 connector and reconnect it.
Replace the EZJ133 board. *2
Resume the
operation.
Replace cooling fan.
Does the fault recur?
Yes
No
Does the fault recur?
Yes
No