Hitachi UX Twin Nozzle - Page 339

6-97
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Failure of adjustment
of excitation voltage
6.5.14b (N2) Failure of adjustment of excitation voltage
Is the excitation
frequency set
properly?
1
1
Replace the EZJ133 board.*1
Replace the EZJ134 board*2
Replace the EZJ134 board.*2
Replace the print head.*3
Replace the print head.*3
Replace the EZJ133 board.*1
Resume the
operation.
Resume the
operation.
Replace the Nozzle.
Is the problem
fixed?
Is the problem
fixed?
Is the problem
fixed?
Is the problem
fixed?
Is the problem
fixed?
Is the problem
fixed?
Replace the Nozzle.
No
No
No
No
No
No
No
No
No
No
Disconnect EZJ134 board CN1
connector once, and then
reconnect it correctly.
Is the EZJ134 board CN1
connector disconnected or
in poor contact?
Correct the excitation
voltage setting.
Change DSW1 setting.
Is DSW1 of EZJ134 board
set properly?
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 EZJ134
board, refer to [Replacement
procedures of EZJ134 board] in
“3.3.6 EZJ134 board (Nozzle2
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”.