430 Ink Jet Printer Service and Maintenance Manual
98
Issue 2
Part No. 306-0430-102
Top Up Addition to Mixer Tank
The time taken for the VMS chamber to empty is checked by the software against a reference value. The
reference value is derived from a ‘time to empty algorithm’ stored in the CPU memory. It takes into account the
type of ink in the machine (entered by the operator during calibration) and the ink temperature as measured by
the sensor in the mixer tank. If the actual time to empty is greater than the reference value, the viscosity of the
ink is too high. Solvent top up valve V1 is energised for up to 5 seconds every 2nd VMS sequence until the
viscosity is corrected (Figure 50).
NOZZLE
FILTER
PRE HEAD FILTER
GUTTER
Figure 50 Top Up Addition to Mixer Tank
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