Hitachi IJ PH - Viscosity Reading Instability

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6.4.8 Viscosity Reading Instability
Viscosity Reading
Instability
Resume the
operation.
Is it normally measured?
Yes
No
Perform viscometer
calibration
Perform the viscometer
operation test on the
Circulation system control
screen.
Replace the circulation filter.
Disassemble and clean the
viscometer.
Replace the viscometer
Is it normally measured?
Is it normally measured?
Yes
Yes
No
No
Viscometer uneven
abnormality during
installation
(calibration)
Re-execute viscometer
calibration (2-3 times).
* Appears in processing
status approx. 12 minutes
after calibration starts.
Does calibration finish
normally?
No
Yes
Press [Execute]
(The coefficient is
determined)
* The viscosity during operation is measured immediately before ink
is refilled (once every 30 minutes). If unevenness occurs in
measurement result, ink will be refilled by referring to the dot
count measurement result, without regard to the viscosity
measurement result. If this status occurs three consecutive times,
the warning window “Viscosity Reading Instability” will appear.
* Although the viscosity is measured each designated time after the
warning appears, ink will be refilled each time by referring to the
dot count measurement result until normal status is restored.