Fedar inkjet t shirt printer Epson heads have good printing effects and high speed, and are favored by the market. But after a period of use, users have found that there will be various problems,such as ink leakage and clogging of printhead.What is the reason?
The above-mentioned problems are mainly caused by external and internal reasons.
External cause
1. There are many nozzle of fedar inkjet t shirt printer Epson head, and the structural characteristics of the nozzle diameter are extremely small. It is easy to cause problems such as ink leakage and clogging.
2. When printhead of fedar inkjet t shirt printer is clogged and the user uses a syringe to clean or automatically clean, excessive force or improper cleaning will separate partition between each color, that is, ink leakage.
3. Epson printhead adopts an integrated structure, and the whole nozzle cannot be used after a problem occurs in one line.
4. The influence of automatic cleaning device on the nozzle:
The width of M, C, Y, K four kinds of separation partition is only 0.6mm, and the upper part is glued with the diaphragm. The adhesive strength is not high. Once the glue layer is damaged, a series of holes (inking) will be formed. If the adhesive layer is destroyed during automatic cleaning, the ink will easily flow from one section to another section of the diaphragm.
5. The effect of cleaning printhead with a syringe:
When the operator uses a syringe to inject the cleaning agent into printhehead, the internal liquid of the color ink generates a positive pressure on the film. When the pressure of the injected liquid is greater than the adhesive force of the glue surface, the glue layer is destroyed. It also produces a string of ink. Especially when nozzle is blocked, the reduction of the nozzle will cause the internal pressure to be greater, which is more likely to cause the glue layer to rupture.
Internal reason
1. The glue layer is naturally damaged. The glue layer itself is made of high molecular polymer. After long-term use, the glue layer will naturally age.
2. In the long-term immersion in ink and cleaning agent, the chemical chain between the molecules of the adhesive layer is broken, and the adhesive strength of the adhesive is weakened.
3. Under long-term changes in temperature, the stainless steel and the adhesive layer have different coefficients of thermal expansion and contraction, resulting in sliding between the adhesive layer and the diaphragm, so that the adhesive force of the adhesive decreases.
4.Under the action of ultrasonic waves for a long time, or under long-term high-frequency vibration, the bonding surface will have fatigue fracture, which will reduce the bonding force.
Precautions
1. Relatively speaking, continuous printing is better than long-term maintenance and placement, so that the ink in fedar inkjet t shirt printer Epson head is always flowing and the nozzle are not easy to block.
2. If the nozzle is in the flash spray state (all nozzles are sprayed once every few seconds), fedar inkjet t shirt printer Epson head will not be easily blocked, which is good for dredging the nozzles.
3. The inking work cannot last for a long time, which will increase the load on the nozzle structure, especially if the plugging of the nozzle reaches a certain number, the inking time should be slightly shortened. And different types of nozzles use different ink pump models.
4. The corresponding ink pump should be used for the corresponding printhead. The power of the ink pump is proportional to printhead type (number of nozzles).
5. When maintaining fedar inkjet t shirt printer head, spread a layer of non-woven fabric on the sponge in the maintenance dish, soak printer head with the cleaning liquid, and lay the nozzle flat (not too much cleaning liquid, not overwhelm the mirror surface of printer head, just soak), Cover the ink inlet on the top of printer head with a non-woven fabric to prevent dust from falling into the nozzle.
6. Be sure to hold printer head when installing and disassembling to avoid damage caused by falling. The head surface of the sprinkler is very fragile, it must not be bumped and must be protected. Its surface layer is an aluminum sheet, and the inner layer is coated with a crystal oscillator and a very small ink tube. It will be concave, deformed, or even broken when touched.
