Commercial LED Lighting & Sign — Mini Sign CO.,LTD

Unclogging of Printheads

Mar 25

adminSome Equipments and Materials advertising printing, large format printing, outdoor printing, solvent printing, wide format printing 2 Comments

Clogging of Printhead is a big and stubborn problem when we use a large format inkjet
printer.There are many talks about how to unclogging,including manual and mechanical.

Manual ways ,I think ,fit the situations of light clogging,needing you find the clogging
early ,pay much time and careness upon the processing ofcleanning printhead face,pressing or extractting or refilling.

But when you have much printing works which sometimes needs to be done quickly,the
mechanical ways would be better and effectiver.As mechanical ways,usually there are 3 ways to clean the print head:
1. Using vacuum cleaner to suck out the dry ink from outside of the jets.
2. Using syringe with cleaning liquid to push out the dty ink from the inlet of the jet.
3. By ultra-sonic vibrator.
The stratagems of unclogging or cleaning above,I think,lie on and differs from two bases.
One is some like “changing the state of aggregation of inks“,may beeter for the situation that you find out very early when you often print ,and the inks are not wholely concreting.
One is some like “washing out with liquids“,may better for the situation that you fin out problem after some unuse ady,and the inks are nearly whole concreting.

Of course ,those 3 above methods ,sometimes,accrording to different equipments,may result in
some negative effects :
1. Break the edge shape of nozzle.
2. Destroy the piezoelectric crystal inside the jet.
3. Neither cleans the jet at all.

It seems that you’d better to buy a new prinhtead when stubborn clogging gazing at your
printer.
Of course ,if you have many and many money,and could pay little attention upon your
budget,it is best way.But if you have to face the budget calculation,want to find a balance way,you should have to chose from the above equipments ,or find some new and better ones.