Markem Imaje 9020, User Manual, Page: 56 / 182

Installation
A36163-B
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Check Jet Stability
Use this function (Production – Maintenance – Jet maintenance) when the jet is unstable.
States of the head solenoid valves during this function
Ink SV (A) Drain SV (B) Additive SV
(C)
Rinsing SV
(D)
Recovery SV
(E)
Phase 1 Open Open Closed Closed Open
Phase 2 Open Closed Closed Closed Open
This two-phase function does not have a time limit.
The resonator block is always supplied with ink. The opening and closing of the drain
solenoid valve makes the pressure in the resonator block change abruptly, helping to
expel the air bubbles and stabilize the position of the jet in the gutter.
Procedure
□ Activate “Check Jet Stability” for 30 seconds.
□ Turn off the jet.
□ Clean dry the head and the head cover.
□ Start the jet, close the head cover and place the head back on its manufacturing
stand.
□ Acknowledge any faults