Second yellow column not printing fully | Epson EF-7720

ksai0900

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Hello, I'm trying to fix this printer for 3 weeks now. Before the first yellow column was in the same shape as the second one. I used a printer nozzle cleaner solution like on youtube and the first column of yellow was printing perfect. But the second one, even after cleaning the nozzle 4-5 times, even a over night soak, it did not fix the issue. What should I do? I'm desperate and too poor to get a new printer. I mean I got this one used for 150$ and I was lucky to get it for that price. Maybe that is why it was sold, but it can't be impossible to fix can it ??? I have done around 30 print head cleanings ... Like 4-5 hours all together...

Here is the pic :
 

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Ink stained Fingers

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You might try to flush the yellow channel as shown here


Thre are plenty of similar videos on Youtube, your first move on the syringe should be a slight pull, then oszillate push/pull cycles as shown
 

ksai0900

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I am
You might try to flush the yellow channel as shown here


Thre are plenty of similar videos on Youtube, your first move on the syringe should be a slight pull, then oszillate push/pull cycles as shown
sorry. I meant, I already did that, I even let it soak throughout the whole night.
In fact, I repeated that step as shown in the video about 10 times.
In fact, before I tried that, there was almost no yellow at all on the second column.
The picture shows the result from nothing to at least some yellow.
But to clean that further did not work. Absolutely no improvements for the second yellow column.
 

Ink stained Fingers

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That's a pretty stubborn clog in your case, I'm afraid that there is no other option than to replace the printhead
 

ksai0900

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That's a pretty stubborn clog in your case, I'm afraid that there is no other option than to replace the printhead
I suppose so :(
But maybe someone will have more ideas.... otherwise.. Does anyone know if the printer heads on aliexpress are of any good?
 

Ink stained Fingers

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Aliexpress printheads are refurbished, cleaned, I wouldn't take a risk with Canon printheads but may with Epson printheads as the last resort. If you have an ultrasonic bath available you may try it but do a thorough dry afterwards - you wouldn't like to get electrical shorts on the contacts from remaining water or cleaning liquid
 

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:yuckyuck Thank you Henny Youngman. Take my wife. Please.

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