Hitachi IJ UX Service Manual page 232

6.2.10 Ink Heating Unit Too High
Ink Heating Unit Too High
▪ Clear the fault.
▪ From the maintenance screen, place
the heating unit in the operating mode. *)
▪ Restart the IJ printer.
Does the ink jet out?
Yes
Disconnect EZJ125 board
CN7 connector and
reconnect it.
▪ Clear the fault.
▪ From the maintenance screen, place
the heating unit in the operating mode. *)
▪ Restart the IJ printer.
Does the fault recur?
Yes
Replace the heating unit.
▪ Clear the fault.
▪ From the maintenance screen, place
the heating unit in the operating mode. *)
▪ Restart the IJ printer.
Does the fault recur?
Yes
Replace the EZJ125 board.
・Clear the fault.
・From the maintenance screen, place
the heating unit in the operating mode. *)
・Restart the IJ printer.
Does the fault recur?
Yes
Replace the EZJ126 board.
- On detecting this fault, the IJ printer automatically sets the "Ink temperature
correction" to (disable).
"System environment setup: Ink temperature correction (enable)  (disable)"
After getting rid of the fault, reset the Ink temperature correction to (enable).
"System environment setup: Ink temperature correction (disable)  (enable)"
- In the condition of the "Ink temperature correction (disable), " the "Ink Temperature
Correction Notice" message appears each time the power is turned on.
(See "1.6 Heating of Ink" in the Instruction manual. )
*) Refer to the following caution.
No
*) Refer to the following caution.
No
*) Refer to the following caution.
No
*) Refer to the following caution.
No
Resume the
operation.
Caution
!
6-14
See Section "6.5.8, No ink ejection
from nozzle."