UV Printer difference between 4-color and 6-color ARTJET 2025

UV Printer difference between 4-color and 6-color

When choosing a UV Printer, CMYK 4-color equipment? 6-color equipment including CMYK Lc Lm?

I know that 6-color equipment has more colors, but I don’t know exactly what the difference is.

Today, I will explain the difference between 4-color and 6-color UV Printers.

I. Use 6-color equipment and purchase additional 4-color equipment _UV Printer difference between 4-color and 6-color

 

1. Refurbish UV Printer _UV Printer difference between 4-color and 6-color

We refurbished the equipment that was delivered in May 2020 and printed covid test kits 24 hours a day for a year, and this is the representative who purchased the refurbished equipment.

The liner scale reached the end of its life (a special case), so parts supply was delayed and after-sales service was delayed.

We did not have any in stock, so he had no choice but to purchase a 4-color equipment from another company due to an urgent matter.

That was about 6 months ago.

 

2. Visit us _UV Printer difference between 4-color and 6-color

 

“At that time, I was in a hurry, so I purchased another company equipment, printed it, and delivered it, but the customer said, “The color is wrong.” So I printed it again with ARTJET.”

“At that time, I’m sorry for the delay in AS. It’s not a part that goes out often,, ”

“In particular, pastel-toned light colors are not expressed,,, ”

“It’s probably the difference between Lc and Lm.”

“Today, I brought a test file to check the color if my machine and the new ARTJET is OK or not”

“The electronic board and software are different, but since it’s the same head, same ink, and same Rip software, it’ll probably come out similar.”

 

I did a test print like that, and the color came out similar.

 

II. Factors affecting color implementation _UV Printer difference between 4-color and 6-color

1. There are three main types _UV Printer difference between 4-color and 6-color  

 

There are three major factors involved in color implementation:

• The color development of the ink itself,
• Print head resolution and offset precision
• Rip software

2. When the ink color itself fades _UV Printer difference between 4-color and 6-color 이

No matter how hard you try to implement that color, it won’t come out.
Especially, if there’s not enough magenta, the red series we want won’t come out.
Like the leftmost picture below, the deep red won’t come out.

Because of this, Sunjet, an ink company that had been the number one seller of UV ink for a long time, gave up its position to Agfa.

Now, since UV ink has been out for over 20 years, it seems that there is no ink that lacks the color itself, although each manufacturer implements different colors.

 

2. Print head resolution and offset precision _UV Printer difference between 4-color and 6-color

 

If the print head of the equipment he purchased had a 2~2.5pl, I think he could have created similar colors through Rip software.
The small dots of the inkjet can implement high printing resolution, and the higher the resolution, the wider the color expression range.
The equipment he purchased is Ricoh’s GH2220 print head, which is indicated as 2~5pl, but it is based on Aqueous and Solvent,

In the case of UV printers, the ink dots are larger than Aqueous and Solvent, so we should consider it as about 5pl,

It was a little larger than the XP600 print head you used before, or at the same dot level, so it was not easy to overcome the color difference through resolution.

Another thing is that no matter how good the print head is, if the offset is not exactly right, high resolution cannot be achieved without that function.

3. Rip software _UV Printer difference between 4-color and 6-color

Rip software is an old technology, and unless the software itself has a major defect, it is almost the same.
You have to set the ICC profile well according to the manual,

and if you handle the color adjustment function of each rip well, you can see that there is almost no problem in implementing the color because of Rip software.

 

III. Difference between 4 colors and 6 colors   

1. Color added to 6 colors _UV Printer difference between 4-color and 6-color  

Technically, C, M, Y, K are also 4 colors, and C, M, Y, K, Lc, Lm are also 4 colors.
Lc is Light Cyan, that is, the secondary color concept of Cyan, and similarly, Lm is the secondary color of Magenta.
It is literally Cyan, but light Cyan, and Magenta, but light Magenta.

If you think of almost all 6-color equipment, you can think of it as adding Light Cyan and Light Magenta.

High-priced printers often add Orange or Violet, but since the ink consumption is so low,
not many ink manufacturers supply this color, so it seems that this color is only used in high-priced printers.

We tested it briefly, and stopped supplying the color because it is no longer available.
If you are curious about the color, click here.
I saw it for the first time in a long time, and it is good because it has Orange and Violet.

 

2. Color implementation method of C M Y K 4 colors _UV Printer difference between 4-color and 6-color

There is no significant difference in dark colors.
Since adding a lot of CMYK makes a dark color, there is no significant difference in image quality whether there is a light color or not.
However, there is a difference when implementing light colors.
However, it is not that light colors cannot be implemented with only CMYK 4 colors.

However, in order to implement the color density of light colors in skin tones or colors with a lot of light colors, black dots are included here and there.
The black dots are so small that they are not noticeable on high-resolution equipment that cannot be seen with the naked eye,
but except for a few equipment, most are around 4~5pl, so the dots are visible.

“What is this? Why does the face look rough, and why does the light color look rough?”

When looking through a magnifying glass, there are black dots here and there, and that is why they look rough.

3. Color implementation method of C M Y K Lc Lm 6 colors _UV Printer difference between 4-color and 6-color 

Lc and Lm are the secondary colors of Cyan and Magenta. When implementing Cyan and Magenta from 0% to 100% concentration,

Light cyan first implements low concentration, and when Lc reaches its maximum, it overlaps with Cyan to naturally implement the concentration.

It is easier to understand if you look at the picture.

For images with a lot of light density, that is, pastel tones, Lc Lm expresses that area naturally, and since the light color series color area is wider, it can implement light color areas that were not possible with 4-color equipment.

 

Also, since the light color color area is wide, it is not necessary to express the density with black dots, so there are fewer black dots, and the light colors also look less rough.

 

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,

and sharing the Daily nozzle test through ARTJET demo equipment.

 

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

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.