Lesson 101 of Telling CIJ Pumps Apart

MI Pressure & Vacuum Pump
We can’t find any difference between these 2 pumps

By given the above picture, can you tell among these two compatible pumps, which one is pressure pump, the right or the left one? If you think this is too difficult, not have a clue to tell, then you are not alone, because from this angle, it’s hard to tell these inkjet printer pumps apart. However, let’s try another angle, you will notice the difference right away.

MI Pressure & Vacuum Pump
From this angle, we can try to find the differnce

Let’s take a look at what is pressure & vacuum.



1. continuous physical force exerted on or against an object by something in contact with it.

It got exert & against movement, applying this on the inkjet pump, we need an extra hole to let the air come & out.



1.a space or container from which the air has been completely or partly removed.

It means, as long as the air is isolated, we just need to keep the balance, do not need to exert & against to fluctuate the pressure. With this in mind, we only need to create an isolated room in the MI vacuum pump.

The answer is popping on the lip now.

MI Pressure & Vacuum Pump
the right one is the vacuum pump, while the left one is the pressure pump

This is only trivial compatible spare part information of continuous inkjet printer. You probably don’t need to know the difference between pressure & vacuum pump, because we will not have them missed up with each other.

MI Pressure & Vacuum Pump
We can tell the pressure pump & vacuum pump apart easily now

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