Why does DX5 Printhead Appear String ink, Clogging and Ink Leakage?

Doing sublimation printing, the DX5 print nozzle sometimes appear string ink, clogging and ink leakage. What the reasons? String ink clogging ink leakage problem will happen after a period printing service. Let’s discover the reasons from external and internal for your better experience with inkjet printer.

Why does DX5 printhead appear String ink, Clogging and ink leakage?

First, the external reasons:

1, Epson DX5 has eight ink composition by C, M, Y, K. The number of holes is 180 x 8 =1440 holes. Smallest drop is 3.5PL (1PL equivalent to 1 / 1,000,000,000 ml). If use the bad quality ink, nozzle can easily lead to the above failure.

2, The user using the syringe cleaning or automatic cleaning force is too large. Or improper cleaning methods will break the color isolation between plastic. It may cause string ink clogging ink leakage.

3, Epson nozzle integrated structure, which is different from the traditional independent nozzle. When there is a problem in a line, it will affect the whole nozzle can not be used.

4, a) the impact of automatic cleaning device on the nozzle: C, M, Y, K four kinds of wall width of only 0.6mm. The upper adhesive layer and the membrane together. The bonding strength is not high. The automatic cleaning equipment pressure is greater than the ink outside. Ink is very easy to flow from one interval to another interval compartment. Then, there will be string ink problem.

b) The effect of cleaning the nozzle with a syringe: When the operator injects the cleaning agent into the interior of the spray head with a syringe. The internal liquid of the color ink creates a positive outward pressure. The glue layer is destroyed, which also produced a string of ink. In particular, when the hole block, it is likely to crack.

Second, the internal reasons:

1, natural damage to the adhesive layer. the material itself is a polymer layer of polymer, the natural aging of the adhesive layer.

2, long-term with the ink, flushing liquid. the plastic layer between the molecular chain fracture, adhesive bonding strength becomes weak.

3, in the long-term changes in temperature. stainless steel and plastic layer as a result of thermal expansion and contraction. so that the glue adhesion reduced.

4, the role of ultrasound in a long time, or in a long period of high-frequency vibration. the adhesive surface will produce fatigue fracture, so that the adhesion decreases. In summary, the blockage is the direct cause of blockage caused by string ink clogging ink leakage. while the piezo jet force generated by the force will not make the film string clogging ink leakage.

Okay, these all above are my share about the reasons of why does DX5 printhead appeared string ink, clogging and ink leakage . If you have any other needs or questions welcome to contact us at any time. We will provide you the best quality product and service. Hope my article can be useful to you. Thank you for your reading.

How to Distinguish New Locked DX5 Print Nozzles?

As we know, with the development of digital printing, more and more inkjet printers be used in this areas. And the printhead is a core partl in the digital printer. And DX5 printhead is popularly used in many printer. Then how to distinguish new locked DX5 printhead? Reading and following, I will share you the tips to solve this problem.

Nowadays, the Chinese manufacturing DX5 eco solvent printers were facing another round problem due to the NEW LOCKED action by Epson company.

As we know, most customers could get the Epson DX5 printhead by themselves in the market. but from this June, more and more customers reported to us that they bought the new DX7 printheads, but the new head can’t be used as normal as before. After testing the new locked printhead in our factory, we found both the printing resolution as well as the printing speed were decreased. That means the new locked DX5 printhead can’t reach the high resolution and the speed of the regular printhead. Here I would like to share with you about how to distinguish the new locked DX5 head:

1.Uninstall the 3 screws with a screwdriver, like the photo below:

2. You can get a circuit board photo of the printhead, like the photo below:

As we can see from the upper and right corner, there is a serial No. for example, the above head serial No. is “12350201”, 12 represents the Year= 2012; 3 represents month= Mar. This head is the old locked head.

But if you see “188…..” this head is definitely NEW LOCKED Head. Because the heads which were produced from Aug, 8th,2018 are all NEW LOCKED VERSION.

Finally, we suggest you to purchase the printhead from your original machine supplier to avoid the problem.

Okay, these all above are my share about the method of identifing wether DX5 print nozzle is new locked. If you have any other needs or questions welcome to contact us at any time. We will provide you the best quality product and service. Hope my article can be useful to you. Thank you for your reading.