The inkjet printing technology is quite common for both consumer and industry use. Also, there are at least three different types of inkjet printing methods. So, are you currently using an industrial inkjet printer? If not, then it is best that you give them a look and try them out. Also, it helps if you know more about the type of inkjet printing method you will choose.
Inkjet Printers: Quiet Operation and Smooth Details
Inkjet printers reproduce digital images by firing droplets of ink through a nozzle and then onto a surface material. Out of this, images will soon form, though the mechanism differs from technology to technology. One advantage these printers have are its quiet operation compared to daisywheel or dot matrix printers. Furthermore, these have a higher resolution print, which is much finer and smoother. Lastly, industrial inkjets require no warm up time, unlike laser printers.
Over the years, industrial inkjets have come a long way from having a slow output to a quick printing process. In the present, these are arguably the most widely used printer types in the digital printing industry. Also, there is a new inkjet material deposition technology in which printheads use piezoelectric crystals for depositing materials directly on surfaces. Overall, these are beneficial instruments that you may add to your business arsenal.
Types of Inkjet Printing Methods
Commonly, there are three general types of methods for inkjet printing. These are the continuous inkjet (CIJ) method, the thermal drop-on-demand, and the piezoelectric drop-on-demand. Each of the three types has its characteristics and functions. When it comes to industrial ink types, CIJ has the most different kinds, while both DODs only have a few.
Continuous Inkjet Method
The CIJ method is the oldest out of the three methods. These industrial printers make use of a high-pressure pump that directs ink from a source through a body and a nozzle, firing ink droplets in a continuous stream. Then, these electrically-charged droplets pass through uncharged droplets to lessen electrostatic repulsion between them. Eventually, the directed droplets go through another electrostatic field and then either move towards the surface material for printing or go through a gutter for re-use.
An advantage of the method is the droplets’ high velocity, which allows for a long distance between the print head and material. Another benefit is its high drop ejection frequency, which enables printing at quick speeds. Furthermore, its nozzle will rarely clog because the jet is always active, which allows the ink to dry quickly. However, the downside of the method is that you get a lower printing quality compared to DOD printing.
Thermal Drop On Demand
A thermal drop on demand (DOD) printer functions by heating ink inside the cartridge to about 200°C. The ink passes through a microfilter as it moves from its reservoir to the ink channel. When printing begins, thermal heaters heat the ink, causing it to expand and fire through the jets. After the heater cools down, replenishing of the ink channel begins. Amazingly, the cycle repeats for as fast as 6,900 times per second.
One advantage of the thermal DOD over the piezoelectric ones is that the thermal versions can utilize disposable cartridges that include both the ink supply and the print head. Furthermore, the cartridge-driven units produce a high-quality print at 300-600 dpi. However, these suffer from slower printing times. If you are willing to deal with replacing the plastic cartridges in exchange for a high-quality print, then go for this type.
Piezoelectric Drop On Demand
The piezoelectric DOD is mostly available for both commercial and industrial inkjet printers. The method involves a different principle for expelling ink from the nozzle. The printer applies electrical charge towards the nozzles and then excites a piezo crystal inside. After stimulating the crystal, the crystal changes shape and then it squeezes the ink chamber. The squeezing then leads to the firing of the ink from the nozzle towards the material surface.
The piezoelectric method makes use of a permanent head, which lasts at least one year even with heavy usage. Also, it can tolerate different types of material. Overall, you may find it an alternative that has more flexibility and is less costly than its thermal counterpart.
Purchasing an Inkjet Printer
There are various types of industrial inkjets available, so either check near your local area or surf online. Also, you should first think twice about your needs before choosing an industrial printer, so you will not regret it. If you are interested in an industrial CIJ printer, then visit Continuous Ink Jet Inks (CIJ) – Needham Inks for examples of its models.
Inkjet Printers are quite efficient as tools in the digital print industry. Furthermore, these have three general types, each with its application and types of ink. If you want to purchase an industrial printer, make certain of your choice and then look for local or online manufacturers.