Hitachi UX Twin Nozzle - Page 338

6-96
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Failure of adjustment
of excitation voltage
Yes
Yes
Yes
6.5.14a (N1) Failure of adjustment of excitation voltage
Is the excitation
frequency
properly set?
1
Replace the EZJ125 board.*2
Replace the print head.*3.
Replace the EZJ133 board.*1
Resume the
operation.
Is the problem
fixed?
Is the problem
fixed?
Is the problem
fixed?
Replace the Nozzle.
No
No
No
No
No
No
No
Disconnect EZJ125 board CN5
connector once, and reconnect it
correctly.
Is the EZJ125 board CN5
connector disconnected or
in poor contact?
Correct the excitation
voltage setting.
Attach correct board.
Is “EZJ125 A”
or “EZJ125 B”
correct?
When the adjustment
fails, is the voltage of
TP14 larger than
360V?
(*1): When you replace EZJ133 board,
refer to [Replacement procedures
of EZJ133 board] in “3.3.1 EZJ133
board (MPU board)”.
(*2): When you replace EZJ125 board,
refer to [Replacement procedures
of EZJ125 board] in “3.3.5 EZJ125
board (Nozzle1 drive board)”.
(*3): When you replace the printhead,
refer to “4.13 Print Head
Replacement Procedure”.
[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”.
Change DSW1 setting.
1
Replace the EZJ133 board.*1
Replace the EZJ125 board.*2
Replace the print head.*3.
Resume the
operation.
Replace the Nozzle.
Is the problem
fixed?
Is the problem
fixed?
Is the problem
fixed?
No
No
No
No
Is DSW1 of
EZJ125 board
set properly?