Technical Description: Ink System Operation
Issue 2
91
Part No. 306-0430-102
Clean Start Jet Sequence
When the clean start jet sequence is initiated the following automatically takes place:
1
Ink system pressure is set to 4 bar.
2
Wait for 15 seconds to ensure flush pump is full (
Figure 41
).
3
Gutter valve V8 opens.
4
Wait 2 seconds and then valve V7 opens to pressurise the flush pump (
Figure 42
).
5
Wait 3 seconds, then jet valve V11 opens to start jet with pure flush.
6
Run with pure flush for 5 seconds.
7
Ink feed valve V6 opens to allow ink to nozzle (
Figure 43
).
8
Wait 4 seconds while ink and flush are jetted through nozzle.
9
Bleed valve V12 opens.
10
Wait 2 seconds then V7 closes.
11
Wait 10 seconds to bleed nozzle.
12
Bleed valve closes (
Figure 44
).
13
Wait 5 seconds.
14
Modulation and phasing switched on.
15
EHT switched on.
PRE HEAD FILTER
NOZZLE
FILTER
GUTTER
Figure 41 Clean Start Jet Sequence - Fill Flush Pump
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