Hitachi IJ UX Service Manual page 174

4.12.5 Replacing thermistor
1 Remove the viscometer from circulation unit, referring to item 4.12.1.
2 Remove the screw (1 pc) holding the thermistor fixing plate, and then replace the
thermistor.
[Caution] When installing the new thermistor, moisten the O-ring with makeup to prevent it
from being damaged.
3 Return the viscometer to its original position, referring to item 4.12.4.
[Caution] After replacing the thermistor, it is necessary to replace the ink and
calibrate the viscometer (see "2.6 Calibration of viscometer").
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