UV Printer Ink Supply Problem Captop Bottom Tube

UV Printer Ink Supply Problem Captop Bottom Tube

 

In the case of large format UV printers that use industrial print heads such as Konica Minolta or Ricoh,
the print head is cleaned by injecting air and sending ink down inside the print head.

However, in the case of UV printers that use Epson series print heads, the captop is raised at the bottom of the print head to seal it, and in the sealed state, the peristaltic pump rotates to extract ink and clean the print head.

The problem is that when ink is not extracted through the print head via the peristaltic pump, there is no way to clean the print head.

Ink supply problem First, I will explain the captop.

I. Captop location _UV Printer Ink Supply Problem Captop Bottom Tube

1. In ink supply _UV Printer Ink Supply Problem Captop Bottom Tube

It shows the ink flow from the main bottle to the waste ink tank.

All parts must be completely sealed so that the ink flows to the waste ink tank through the ink load (pumping).

The location of the captop can be seen in the figure below.

2. On the printer _UV Printer Ink Supply Problem Captop Bottom Tube

This is the part that seals the bottom of the head.

II. Captop bottom tube _UV Printer Ink Supply Problem Captop Bottom Tube

 

1. “Aren’t there two types of ink tubes: hard and flexible?” _UV Printer Ink Supply Problem Captop Bottom Tube

There are usually two types of ink tubes used in UV printers.

One is a hard tube made of a hard material,
which is connected from the main ink tank, passes through the cable carrier, and is connected to the bottom of the head carriage board.
The reason for using a hard material is that friction occurs when the X-axis moves back and forth during printing, and the tube may wear out due to friction, so it seems to be made of a strong hard material.
Because the material is hard, you have to apply a lot of force to insert or remove the tube from the fitting.
In particular, when connecting a hard tube to a damper, there is no clearance, so the connection part is not sealed, and air is sucked in, causing ink supply problems.
For this reason, a hard tube is not used for connecting a damper.

The other is a soft ink tube,
and the last ink tube connected to the damper must be soft.
When installing the damper, there should be no air leakage, and it should not be pulled out even if pulled out, so the damper connection must be a soft ink tube.

2. Captop bottom tube that I didn’t care about _UV Printer Ink Supply Problem Captop Bottom Tube

This is a story from when I first sold the UV Printer in 2020.
Naturally, I thought there were two types of ink tubes, soft and hard, and I purchased them as AS parts.
When replacing the consumable Captop, the tube that goes into the bottom was replaced with a soft ink tube, and the inkload (pumping) that had been working well stopped.

After tightening the connection part with a cable tie, it worked sometimes and sometimes didn’t, and the inkload (pumping) problem was solved by a friend who was in charge of AS.

After a while, I repaired and sold 8 used equipment myself, and I replaced all the consumables.
When I replaced the consumables of 5 out of 8, I found that the diameter of the Captop lower tube was smaller than that of the soft ink tube.

Only then did I remember what the Chinese manufacturer had said.

 

“Why don’t you buy the Captop bottom tube?”

Click here to see a video of what it feels like to connect rigid, soft, and captop bottom tubes.

III. Even if there is only a small leak _UV Printer Ink Supply Problem Captop Bottom Tube

1. Alcohol on top of captop _UV Printer Ink Supply Problem Captop Bottom Tube

 

“Team leader, if you pour alcohol on the captop and inkload (pumping), the alcohol comes out, but then the ink doesn’t come out.”

 

In this case, there are usually three factors.

• if the tube connected to the damper is loose and air comes in,
• when the captop and print head positions are slightly different,
• if the bottom tube of the captop becomes loose and air comes in,

2. I’ve been using it well for over a month (or more), but today it suddenly doesn’t work. _UV Printer Ink Supply Problem Captop Bottom Tube

There are countless reasons why Inkdoes(Pumping) didn’t work.
If it does not work after using it well for several months, the problem is most likely due to the lower tube of the Captop becoming loose rather than a change in the position of the Captop and print head or a leak in the damper itself.

 

How to check is

• open the captop and try to pull out the bottom tube with your hand. If it comes off, there is a leak. If the tube stretches and sticks, it is normal.
• The best way is to always replace a tube that is easily separated like this with a new one, but if there is no captop bottom tube, it is okay to just cut off the end connection and reconnect it.
• Don’t assume it’s normal just because you pull it out gently and it doesn’t come out.
• Make sure to check whether the tube holds up even if it’s slightly stretched.

I’m telling you this because I, too, have solved the inkload (pumping) problem after replacing the bottom tube of Captop again.

3. Various causes of inkload (pumping) problem _UV Printer Ink Supply Problem Captop Bottom Tube

There are countless variables in this part from waste ink to the main bottle.

• In an actual customer site, the ink line connected to the waste ink tank was blocked and pumping did not work.
• If the peristaltic pump tube (yellow tube) is shrunk (this is a common problem. The yellow tube is a consumable item), or a part is torn, it may not work properly.
• The bottom tube of the captop was torn, and the connection of the bottom tube of the captop was loose (what I explained today).
• Captop itself is defective (it happened once)
• The protective border at the bottom of the print head is broken and the captop rubber and the print head are not sealed.

 

• Because the positions of the head and captop do not match
• Because the damper connection is defective (be sure to check the ink tube and damper inlet diameters).
• Air leakage due to chewing of the ink line
• Ink is not supplied because it hardens inside the ink line

 

Today,

In the first part of the Ink Supply troubleshoot,
I told you that you should use a smaller diameter tube instead of the regular soft tube for the Captop bottom tube.

 

IV. This is how ARTJET supports our customers.

 

One thing I feel while selling and maintaining ARTJET UV Printers for 5 years is that the next most important thing after product stability is Troubleshooting DATA.

All products have problems, whether they are actual equipment problems or consumer errors, and product stability is how easily and quickly you solve those problems.

Since words alone are not convincing, we are organizing all the troubleshooting DATA as follows.

 

1. Printhead Problems and Solutions Total 10

ARTJET UV Printer Problems and Solution_Printhead Problems Summary

Additional issue and solution
The red color does not appear at first, then appears during printing, and then does not appear again

 

2. Ink Supply Problems and Solutions Total 17

ARTJET UV Printer Problems and Solutions_Ink Supply Problems Summary

Comprehensive application
Damper replacement time
The nozzle test is fine, but it seems that a certain color is not coming out during printing
Capping station block positioning to match the print head and captop
Can I ignore the ink alarm and use it?
UV Printer Monday Morning Routine
I tried white cleaning every day for a month
When and how to replace the yellow tube

 

3. Mechanical problem and Solutions 

1. How to align the print head in a straight line
2. There is a clicking noise from the X-axis
3. Banding problem in specific section
4. The Importance of Head Height in Bidirectional Printing
5. Problems that occur when the wiper height is high
6. When the cleaning belt screw is loose
7. When the capping fixing plate does not fit
8. How do I prepare the ARTJET electricity?
9.When Anti-crash becomes a jam in captop
10. Print head Anti crash system 

 

4. Electron board and Software problem is hereunder. 

1. The printer works but printing does not work
2. Resetting to default settings
3. Touch panel does not turn on
4. The printer is printing, but nothing is printed
5. Software closes when I just press the print button
6. Printing in the wrong place
7. Positioning misalignment in X-axis direction
8. How to make the Offset fine tune
9. Vertical offset is not correct only for the right section of white
10. Software turn off when click print button

 

5. Sai Flexi Rip software  

1. Sai Flexi Rip _ How to make the Spot Color & several mistakes
2. Sai Flexi Rip _ Color is strange after applying Spot color
3. Sai Flexi Rip _ White is sticking out
4. Sai Flexi Rip _ Installation and Dongle Key Recognition Failure Measures
5. Sai Flexi Rip _ Dongle Key Recognition Failure
6. Sai Flexi Rip _ White lines appear when printing only color
7. Sai Flexi Rip _ Color Adjustment through Graph
8. Sai Flexi Rip _ Print size compensation
9. Sai Flexi Rip _ Ink Consumption Calculation
10. What is ICC profile & menu board UV Printing
11. Sai Flexi Rip _ Dongle Key recognition Failure from USB port

 

6. Problems and solutions from actual consumer sites

1. Paper that absorbs ink
2. White Motor Pump Does Not Turn
3. A line-like thing appears at the end of the white print surface
4.Can varnish banding be reduced?
5. Are there many problems with China’s UV Printer?

7. UV Printer Application 

we are explaining not only UV printer problems and solutions, but also what products are produced with UV printers.

1. Braille printing
2. Flip the material and align it
3. 2.5D UV print
4. ARTJET UV Printer Application 6 _아크릴 본딩 장비
5. I phone 14 print limitation 
6. Mask printing not recommend
7. Leather Cigarette Case UV Printing
8. Round soccer strategy board UV printing
9. Primer  performance & limitation 
10. UV Print & Laser crop mark cutting
11. Mobil case UV print profit
12. Screen vs Digital Comparison and UV Printing on Hand Sanitizer Cases
13. Bottle zig & print
14. Canvas UV Printing
15. Applying epoxy effect with varnish
16. Making a light frame with UV Printer & Laser cutter
17. UV Printer & Laser Cutting Equipment Button Name Tag Making
18. UV Printer & Laser Cutting Making a Cell Phone GripTok
19. Making an Acrylic Keychain with UV Printer & Laser Cutter
20. UV Print with Zig
21. How to make RD WORKS CCD camera cutting Video manual
22. Acrylic bonding equipment
23. All the steps to create UVDTF
24. UVDTF TEST Result on various material
25. ARTJET CW+C Print time & Ink Cost
26. Create a white shield with different images on the front and back of the keyring
27. Keyring Business Required Equipment and Investment Costs
29. Acrylic Lighting Goods
30. Ballpoint pen jig printing
31. Staining occurs when printing on coated leather

 

 

That’s it for today.