Matan Digital Printing Barak Series Scheda tecnica
Cleaning the Ink System
&
Replacing the Ink
Technical Note – 10100125 Rev. A
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Safety Procedures
Before reading this Technical Note, please refer to the section
on Safety Procedures in the Barak User's Manual.
About this Technical Note
This Technical Note sets out the procedure for cleaning the Ink
System and replacing the ink.
Before changing the ink, the entire Ink System must be
cleaned.
•The Barak printer's Ink System comprises either:
oType A: Using Gotec pumps, or
oType B: Using Hargraves pumps.
•Cleaning the Main Ink Tanks (MIT).
•Cleaning the Secondary Ink Tanks (SIT).
•Cleaning or replacing the Ink System Pipes.
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Cleaning the Ink System
Cleaning the MIT
1. Disconnect the tubes from the MIT fittings as shown in
Figure 1, page 3.
Figure 1: The Main Ink Tank's Fittings
2. Remove the four retaining screws that hold the MIT and
keep them for later use.
3. Remove the tank from the printer.
You might find that the tank has stuck to the chassis,
because of spilt ink.
4. Dispose the old ink according to your local environment
regulations.
5. Remove the plastic or metal fittings, and dispose of them.
Retaining Screws
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6. Thoroughly clean the two threaded fittings, both inside and
out.
7. Pour approximately ½ liter of flushing fluid into the MIT
(Figure 2, page 4).
The flushing fluid must be compatible with the ink that is
being removed.
Be careful not to splash the liquid outside the tank and not
to turn it upside down, as it may damage the DIGITAL INK
LEVEL SENSOR.
Figure 2: Pouring flushing fluid into the MIT
8. Thoroughly wash the inside of the MIT, making sure that
the corners are free of any residual ink.
Plastic Fitting Threaded Fittings
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9. Wait for a couple of minutes and then drain the liquid
through the drain hole, by unscrewing the drain plug
located on the bottom of the tank, as shown below.
Be careful not to lose the red gasket.
10. Repeat steps 7, 8 and 9, a couple of times (on the same
MIT).
11. Screw back the plug and fill the tank with approx. ½ liter of
alcohol.
12. Thoroughly wash the inside of the MIT
13. Open the plug (be careful not to lose the red gasket,) and
pour out the alcohol.
14. Dry the inside of the tank using an air line, as shown
below.
Drain Hole
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15. Attach the red gasket to the drain plug and tightly close the
drain hole with the plug, as shown below.
If the gasket is not in good condition, you should replace it.
16. Connect the two new metal fittings to the tank's threaded
fittings, using a #12 metric wrench, as shown below.
These fittings don’t need Loctite or any other sealing
material, as they have their own built-in plastic O-ring.
17. Relocate the MIT on the printer's chassis and attach it with
the four screws.
18. Repeat all the above steps for the other three tanks.
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Cleaning the Entire Ink System
1. Empty the INK WASTE TANK.
2. Disconnect all the pumps from the electricity supply, as
shown below.
Figure 3: Disconnecting the old AC Pump
Figure 4: Disconnecting the new DC Pump
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3. Turn on the Barak FE in ENGINEER MODE, and open the I/O
UTILITY dialog box, as shown below.
4. Make sure all the 8 AIR VALVES check boxes are checked.
5. In the SIT group box, click the PRESSURE option.
All the SITs will empty.
6. When air starts coming out from the nozzles, click the
VACUUM option.
The SITs are now completely empty.
7. Prepare an external pump as shown below, (you can use
two simultaneously).
The figure below, shows an AC pump, but, if your system is
configured for a DC pump, you should use a DC pump.
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8. Connect the pump to the Molex connector J5, near the
ELECTRIC PANEL, which supplies 24 volts to the pump.
You can also use the original pumps instead of an external pump.
9. Disconnect the lower end of the SIT from the pump.
10. Connect the lower side of the SIT to a 50 cm piece of black
ink tubing, as shown below.
11. Connect the other end of the tube to the external pump, as
shown above.
Filte
r
Black tubing
External Pum
p
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12. Insert the end of the other black tube from the pump into
the bottle of flushing fluid, as shown below.
13. Disconnect SIT'Svacuum pipe, as shown below.
14. Connect a black ink pipe to the SIT and insert the other end
of the pipe into an empty bottle.
15. Turn on the external pump.
16. The flushing fluid will wash the SIT and all the dirty liquid
will drain into the bottle, as illustrated in the following two
figures.
Vacuum Pipe
Black Ink Pipe
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