Comparison of parameters of print head
Ink droplet volume
PS:Seiko SPT, Konica, Ricoh ,Epson (printing speed= printing width *Ignition frequency)
Ricoh print head
This print head is real industry type,made in Japan, is one of most Cost-effective print head on the market.specially the new G5 print head, with 7pl ink drop, 60khz ignition frequency, printing printing fast and high quality. variable ink drop technology, Grayscale make the printing more stable and smooth.
With stainless steel for under plate, the print head is crash-proof.not effect by the environment (constant temperature and circuit insulation system)
Grayscale means in single print head, can print different size(Volume, diameter) ink drop.its working method is in single nozzle ,through controlling the vibrating of piezoelectric, In a very short period of time successive ejected a few small drops,by a few small droplets dissolved into a large drop before they detached from nozzle, So that the picture to achieve high-definition beauty.
Dx5 print heads are widely used on UV flatbed printer, advantage is that resolution is high,(1440*1440dpi) printing quality is good, but Correspondingly printing speed is slow, for the ink drop is 3.5pl , ignition is 18khz .but it is still popular in the market. most important is :print head cost is lower then other print heads, you can get a UV printer with less money and start your business , although the DX5 print heads are easy block, and life time is short.
Few years ago Seiko spt 510/1020 print head widely used on UV printer , this print head life time is long, printing speed also fine, but now not popular among the printer manufacturer. because of the low printing quality, the ink drop is 35pl , make the printing image is not delicate enough.
Konica print head
Konica print head are widely recognized around the world, konica 512/1024 also widely used on UV flatbed printers. Konica print head are full-sealed , dust-proof, water -proof,double ink tube, ink flu pressure is even, make the printing quality stable.but Print accuracy not high enough, and print head cost is high. Machine is easier operate then Epson DX5.