Chapter5 Troubleshooting
5-14
ERROR 651
REPLACE NCU
The NCU sensor sensitivity is too low to
correctly judge missing lines (due to noz-
zle clogging).
The nozzle check function cannot be
used.
• NCU replacement is required.
Contact your local distributor, our sales
office, or service center.
ERROR 652
NCU NZK CHK (HW)
Nozzle clogging and deflection occur fre-
quently,
And the NCU cannot correctly recognize
the ink discharge.
• Check the nozzle condition. If there is a
great amount of missing lines (due to nozzle
clogging) or deflection, clean the affected
nozzles.
ERROR 653
NCU NZK CHK (MARK)
ERROR 654
NCU CENTER POS
Failure to adjust the discharge position
to the NCU.
ERROR 655
NCU FLUSH POS
ERROR 656
NCU SN ADJST
Sensor sensitivity adjustment has failed.
• Check the nozzle condition. If there is a
great amount of missing lines (due to nozzle
clogging) or deflection, clean and restore the
affected nozzles.
If displaying again, contact your local distrib-
utor, our sales office, or service center.
ERROR 657
REPLACE NCU INK PAD
Ink absorbent of NCU is full.
• Contact your local distributor, our sales
office, or service center.
ERROR 658
NCU SENSOR LV LOW
The NCU sensor sensitivity is falling.
• Replacement of the NCU is recommended.
Contact your local distributor, our sales
office, or service center.
ERROR 65b
NCU Sens Adj Err H
Cannot adjust the sensor sensitivity.
ERROR 65c
NCU Sens Adj Err L
ERROR 702
THERMISTOR CONNECT
A thermistor connection error has
occurred.
• Turn off the power on the machine and turn it
on after a while.
If displaying again, contact your local distrib-
utor, our sales office, or service center.
ERROR 710
HEATER TEMP ERROR
Heater temperature abnormality was
detected.
If the temperature abnormality cannot be
resolved after this error occurred, forci-
bly turn off the machine power.
ERROR 901
INVAILD OPERATION
Due to a certain error, the function can-
not be performed.
• Return to the local mode screen and check
the error situation and take appropriate
action.
ERROR 902
DATA REMAIN
There is remaining print data.
• Clear the data.
(P.2-13)
ERROR 90d
NO HEAD SELECT
An error occurred in the mounted heads.
• Turn off the power on the machine and turn it
on after a while.
If displaying again, contact your local distrib-
utor, our sales office, or service center.
ERROR 90f
PRINT AREA SHORT
Media width or media length required for
printing is insufficient.
• Change the media to the one with enough
width or length.
• When the media width narrows because the
origin moved, slide the origin to the right to
widen the effective media width.
ERROR 91a
ADJUST HEAD HEIGHT
There is a difference between the head
height set value stored in the machine
and the current head height.
• Set the head height.
(P.2-4)
ERROR 04
PARAM ROM
An error occurred in the MAIN PCB
FROM.
• Turn off the power on the machine and turn it
on after a while.
If displaying again, contact your local distrib-
utor, our sales office, or service center.
ERROR d09
HD MEMORY [1234]
An error was detected in the built-in
head memory.
Display Cause Measures
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