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Ricoh G5 or Toshiba Ce4 Printhead, Which is Better?

Nowadays, many users will encounter a problem when buying UV flatbed printers, that is, which printhead should I choose? Some people think that Ricoh printheads are good, some think that Toshiba printheads are good, and some say that Epson printheads are also good. Then Which printhead is suitable for you? Next, let’s compare the Ricoh G5 printhead and the Toshiba CE4 printhead.

Differences Between Ricoh G5 and Toshiba CE4 Printheads

1. Ricoh G5 printheads entered the Chinese UV printer market at the end of 2013. So far, most UV printer manufacturers have adopted Ricoh G5 printheads, and the market price is about ¥20,000 per piece. Let’s take a look at the parameters of the GEN5 printhead: It uses metal nozzles and has an average service life of 3-5 years, which is 2 times longer than similar printheads.
Ricoh Gen5 / 7-35PL, 1280 nozzles, 8 levels of grayscale, print width: 54mm, ignition frequency: 60KHZ, physical accuracy: 600 DPI.

Ricoh Gen5 printhead

2. Toshiba printheads entered the market in early 2016. Currently, there are very few domestic manufacturers using these printheads. The Toshiba printhead model used in UV printers is generally Toshiba CE4, and the market price is about ¥16,000 per piece. Let’s take a look at its parameters:
Toshiba CE4 / 6-42PL, 636 nozzles, 8 levels of grayscale, printing width 53.6mm, ignition frequency: 17.9KHZ, physical accuracy: 300 DPI.

Toshiba ce4

Which Printhead is Better?

Maybe you can’t tell anything specific from the parameters of the nozzle above, but the numbers are different. To decide whether a nozzle is good or not, first look at the printing accuracy of the printhead, then its speed, and finally its service life.

1. Printing accuracy

The printing accuracy of the nozzle means that the nozzle has the highest resolution for printing images. From the above data, it can be seen that the Ricoh G5 is 600 DPI and the Toshiba CE4 is 300 DPI.

2. Printing speed

Three indicators of the printhead determine its printing speed.
A. Number of nozzles
That is, how many nozzles are working in a printhead (such as G5, that is, 1280 nozzles are working)
B. Ignition frequency of printhead
That is, the number of ink dots that each nozzle can eject per second (such as G5, it is 60K, that is, each nozzle can eject 60,000 ink dots per second)
C. The weight or size of the ink dot (for example, G5 is 35PL)
If the ink dots are small, more ink dots need to be covered per unit area to achieve color saturation. The larger the value obtained by multiplying the three, the faster the printing speed of the printhead. Some printheads have many nozzles, but the ignition frequency is very low, and they are not fast. Some printheads have high ignition frequencies and many nozzles, but the ink dots are too small, so they are not necessarily fast.

3. Service life of the printhead

Both are industrial printheads, and their service life can reach about 4-5 years. It mainly depends on the ink used in the printing process and daily maintenance. Ricoh printheads are not picky about ink. They have had several years of market growth, and the technology is relatively mature and stable. Not long after the Toshiba CE4 printhead came out, the ink market also had some experience.

From the above data and theory, we can see which UV printer printhead is better. You have a definition in your mind. However, you still have to visit the manufacturer to know the specific effect. Only when you see the printing effect at the scene can you feel at ease mentally. It is not unreasonable to get what you pay for. Of course, it is also important to choose a reliable UV flatbed printer manufacturer.

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