Hitachi IJ UX Service Manual page 266

6.4.10 Ambient Temperature Too High / Too Low
Ambient temperature
Too High / Too Low
Is the Ambient temperature
upper-/lower-limit value
erroneously set?
No
Does the IJ printer
temperature indication agree
with the ambient
temperature?
No
Is the EZJ125 board CN7
connector disconnected?
No
Replace the EZJ125 board.
Is the problem
fixed?
No
Replace the EZJ126 board.
Is the problem
fixed?
No
Replace the Thermistor of head cable.
Is the problem
fixed?
No
Replace the print head.
Yes
Yes
Yes
Yes
Yes
Yes
END
6-48
Properly set the Ambient
temperature upper-/lower-limit
value.
Use an air-conditioner or the like
to ensure that the IJ printer
ambient temperature is within
the operating temperature range.
Connect the connector.