Markem Imaje 9020, User Manual, Page: 54 / 182

Installation
A36163-B
54/182
Unblock Nozzle
Use this function (Production – Maintenance – Jet maintenance) when there is no jet or
the jet is deflected.
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 Closed Closed Closed Closed
Phase 2 Open Open Closed Closed Closed
Phase 3 Closed Open Closed Closed Closed
A cycle is made up of three phases, each lasting approx. one-third of a second.
These phases follow each other automatically and the cycles repeat themselves as long
as the “Unblock Nozzle” cycle is on.
Diagram of pressure levels in the resonator block:
Procedure
□ Select “Unblock Nozzle”.
□ Stop the jet as soon as it appears.
□ Activate “Check Jet Stability” for approx. 30 seconds
COMMENT: If the jet does not appear within one minute of selecting “Unblock
Nozzle”, stop the jet and select “Intro. Cleaning Solution”.
Pressure
Phases
1
2
3
1
+
0
-