Printhead life span and warranty
I. Head life _Printhead life span and warranty
Until 2010, the print head manual had the head lifespan listed, but it is no longer there.
I assume it was deleted because it was controversial or inaccurate information.
Let’s calculate how long it can be used based on the old manual’s head lifespan.
1. Head life as indicated in the manual _Printhead life span and warranty
Spectra Q class print head
The Dimatix print head is made of ceramic material instead of film on the bottom.
The ceramic material is durable enough that some customers have used it for over 10 years without replacing the head.
The head manual above states 150 liters of jetting, or 100 billion jets (100,000,000,000) per nozzle.
Konica KM1024MHE print head
The bottom of the Konica head is made of film. It is less durable than ceramic material.
The manual states that the total number of jets is 4,000,000,000.
2. The number of jets the print head fired per second when printing _Printhead life span and warranty
Spectra Q class ends its head life after 100,000,000,000 jets,
Konica KM1024MHE ends its head life after 4,000,000,000 jets.
Then. When printing on a printer, if you calculate the number of times it jets per second, you can estimate how many days it can be used based on that number.
First, when printing, let’s find out how many times per second it jets.
- Head spec frequency (Hz): “Hertz (Hz) means one vibration or one cycle per second.” If it’s 14,000Hz, it can jet ink up to 14,000 times per second.
- Single Drop standard: Based on 1 pulse, not gray scale (multi drop). In other words, ink jetting at a 1:1 ratio with frequency.
- Duty ratio (4pass): 4 passes means that the data to be jetted is divided into 4 times and jetted, so instead of using 100% of the entire head nozzle, only 25% is used to create the image.
- Reduction in jetting time due to Y-axis feeding: When the Y-axis moves by the pass interval (using the term feeding), no jetting is done, and the feeding action takes up about 40% of the time when expressing an image.
- The actual image is not CMYK 100%: In the ICC profile, the overall density is reduced to 80% (Ink Total limit is set from 400% to 320% on average), and since the actual image printing does not print only black (CMYK 100%), I set it to about 55%.
|
print head |
Max(Hz) |
Single Drop standard |
Duty ratio(4 pass) |
Reduction in jetting time due to Y-axis feeding: |
The actual image is not CMYK 100% |
Number of injections per second |
|
Q-class |
14,000 |
1 |
25% |
60% |
55% |
1,155 |
|
Konica 1024 |
12,000 |
1 |
25% |
60% |
55% |
990 |
According to rough calculations,
Spectra Q class maximum frequency is 100,000,000,000 times, but when printing, the average jetting is 1,155 times.
Konica KM1024MHE maximum frequency is 4,000,000,000 times, but when printing, the average jetting is 990 times.
3. Number of days of use based on 8 hours per day_Printhead life span and warranty
|
Print head |
Nozzle life according to manual (Shot count) |
Number of injections per second |
Number of injections per minute |
Number of injections per hour |
Number of injections per Daily basis(8 hours) |
Total number of days used |
|
Q-class |
100,000,000,000 |
1,155 |
69,300 |
4,158,000 |
33,264,000 |
3,006 |
|
Konica 1024 |
4,000,000,000 |
990 |
59,400 |
3,564,000 |
28,512,000 |
140 |
There is also a number that the head can jet at most, and a number that indicates whether it jets when printing for 8 hours a day.
If you divide the number of jets in the head life by the number of jets when using for 8 hours, you can find out the number of days it can be used.
Spectra Q class head life 100,000,000,000 ÷ 33,264,000 jets per day = 3006 days
Konica KM1024MHE head life 4,000,000,000 ÷ 28,512,000 jets per day = 140 days
4. Factors more important than head life _Printhead life span and warranty
Konica head life is 140 days, theoretically the head should be replaced every 6 months,
but there has never been a case where the head suddenly stopped working after being used normally and its lifespan ended,
and there has never been a case where it was replaced every 6 months.
The theoretical head lifespan is only, and the actual usable lifespan is determined by the following factors.
- Is the consumer managing the head well?
- Is the ink inside the head well-tuned to match the head characteristics?
- Is the head voltage and waveform by the board stable?
II. Head Warranty _Printhead life span and warranty
1. Printer manufacturer _Printhead life span and warranty
“Can a printer manufacturer get a warranty on a head from the head manufacturer?”
It’s almost impossible.
We’ve purchased thousands of heads over the past 15 years, and only two have been warranted.
One of the warranted heads broke right after we connected the cable and turned it on, but I was able to get a free head after 3 months.
2. For general consumers _Printhead life span and warranty
Until 2010, the 1-year warranty for equipment included the head. However, under the premise that consumer negligence was excluded,
because of the vague concept of consumer negligence, warranty was provided to customers who strongly complained of injustice,
and for those who did not, it was concluded that it was consumer negligence.
However, now, regardless of consumer negligence, “heads are consumables and are excluded from warranty.”
- The fact that print heads are expensive
- The fact that printer manufacturers do not receive print head warranties from head manufacturers
- The fact that printers have low sales margins makes head warranties impossible
Now that Korean printer manufacturers have almost disappeared by 2025, the policy of Chinese and Japanese manufacturers who strongly maintain the “head compensation exclusion” policy seems to have settled in the market.
III. 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.
We are organizing all the troubleshooting DATA as follows.
You can see the product print quality by clicking here.
1. Complete Guide to Printhead Problems and Solutions
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
Printhead replacement video and precautions
2. Complete Guide to Ink Supply Problems and Solutions
Previously sorted, ink supply problem summary
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. How to make the Spot Color & several mistakes
2. Color is strange after applying Spot color
3. White is sticking out
4. Installation and Dongle Key Recognition Failure Measures
5. Dongle Key Recognition Failure
6. White lines appear when printing only color
7. Color Adjustment through Graph
8. Print size compensation
9. Ink Consumption Calculation
10. What is ICC profile & menu board UV Printing
11. Dongle Key recognition Failure from USB port
6. Problems and solutions from actual consumer sites
1. Paper that absorbs ink
2. A line-like thing appears at the end of the white print surface
3.Can varnish banding be reduced?
4. 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
8. Bonus
1. ARTJET UV Printer Old Model Refurbished
2. UV Printer Laser Cutter Bonding Machine Which equipment should I buy first?
3. Considerations when choosing a UV printer
4. DTF Printer Price and Specification Survey
5. Acrylic Bonding Equipment Don’t Put It Off Anymore
6. China inkjet level now
7. Thoughts on KOSIGN 2024
8. ARTJET Delivery Preparation
9. ARTJET Setting Sequence
10. UV Printer History and Future Prediction 1
11. UV Printer History and Future Prediction 2
12. UV Printer History and Future Prediction 3
13. UV Printer History and Future Prediction 4
14. UV Printer History and Future Prediction 5
15. Are there many problems with China’s UV Printer?
16. UV Printer Small Text Meaning
17. Is the XP600 head okay
18. Roland UV Printer Summary
19. Mimaki UV Printer Summary
20. UV Printer Alibaba Direct Purchase Considerations
21. Things to consider when buying a used UV Printer
22. Bi Uni Print Quality Differences
23. RDworks download install and laser head position by SW
That’s it for today.
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