© 2009 MIMAKI ENGINEERING CO.,LTD.
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Maintenance Manual > Operating Principle > Ink System > Supply Valve Control
Model CJV30/TPC Issued 2008.08.04 Revised F/W ver. 1.00 Remark
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1.3.5 Supply Valve Control
Cartridge switching operation
Timing to open/close the supply valve
The supply valves are usually closed and opened only when ink supply is required.
Timing to open/close the supply valves is shown below:
Event
For the 4-color ink set
Except for the
4-color ink set
Cartridge 1
valve
Cartridge 2
valve
Cartridge 1
valve
1 Online supply start
Both cartridges free from problems
Cartridge 1 is the control cartridge.
OPEN CLOSE OPEN
2 Cartridge 1
Cartridge near end
No change No change No change
3 Cartridge 1
Cartridge ink end
Cartridge 2 is the control cartridge.
CLOSE OPEN CLOSE
4 Cartridge 2
Cartridge near end
No change No change
5 Cartridge 1
Removed for replacement
No change No change CLOSE
6 Cartridge 1
A normal cartridge has been set
No change No change OPEN
7 Cartridge 2
Cartridge ink end
Cartridge 1 is the control cartridge.
OPEN CLOSE
8 Online printing has been completed
All valves closed
CLOSE CLOSE CLOSE
Timing to open/close the supply valves
Instruction to open/
close the supply valve
Flushing Before execution OPEN
After execution CLOSE
Cleaning or filling Before execution OPEN
After execution CLOSE
Head wash Before execution OPEN
After execution CLOSE
Before printing operation OPEN
Before capping operation CLOSE
When changing the supply cartridge during ink supply OPEN/CLOSE
At the occurrence of an system error CLOSE
At power-off CLOSE