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6-10
(*1): 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”.
[Caution]
If you remove a solenoid valve or other piping part without relieving the pressure from the path, the ink may
gush out. Before performing the above steps, be sure to provide pressure relief.
Does the initial-level
sensor operate?
Disconnect the connectors, then
reconnect them (3 connectors).
Connect the connector.
Is the EZJ133 board CN13 or
EZJ138 board CN1, 4 connector
disconnected?
Is the connection harness
conducting?
Replace the harness.
Replace the EZJ133 board.*1
Is the fault cleared by
power-on reset?
Does the initial-level
sensor operate?
Yes
No
No
Yes
Yes
No
No
No
Yes
Yes
Resume the
operation.
③
②
Summary of Contents for UX Twin Nozzle
Page 1: ...Service Manual HITACHI Printer UX Twin Nozzle Model Revision February 2017 Version A ...
Page 106: ...3 30 Circuit diagram of EZJ127A board ...
Page 123: ...3 47 Circuit diagram of EZJ129 board ...
Page 131: ...3 55 3 3 20 Electrical Connection Diagram ...
Page 151: ...4 17 7 Reset the time of the replaced solenoid to 0 on the Parts usage time management screen ...
Page 352: ...7 1 7 Attached Drawing 7 1 Circulation System Diagram Circulation System Diagram ...
Page 354: ...7 3 7 3 Electrical Connection Diagram Electrical Connection Diagram ...