Hitachi UX Twin Nozzle Service Manual page 287

6.2.29a (N1)Ink Drop Charge Fault
(N1)Ink Drop Charge
Fault
Is the setting of DSW2 of
EZJ125 board correct?
Yes
か
Replace the EZJ125 board. *1
Does the fault recur?
Yes
Replace the high voltage power supply1. *2
Does the fault recur?
Yes
Replace theEZJ133 board. *3
(*1): When you replace EZJ125 board, refer to [Replacement procedures of EZJ125 board] in
"3.3.5 EZJ125 board (Nozzle1 drive board)".
(*2): When you replace High voltage power supply 1, refer to [Replacement procedures of high
voltage power supply] in "3.3.17 High Voltage Power Supply 1 and 2".
(*3): When you replace EZJ133 board, refer to
"3.3.1 EZJ133 board (MPU board)".
[Caution]
Be sure to check that there is no wrong connection of harnesses by referring to
numbers and Identifying method of harnesses]
Correct the setting of DSW2 of
No
EZJ125 board.
Yes
Does the fault recur?
No
No
Resume the operation
[Replacement procedures of EZJ133 board]
"3.3.20 Electrical Connection Diagram".
in
6-45
No
in
[Connector