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HP4620 Printhead removal

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#1 Cericia


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Posted 21 March 2015 - 12:55 PM



I have printer that is clogged with black ink. I have tried all the cleaning suggestions to no avail.


The printer does not make it easy to get to and remove the print head.


I found an old post that tells how to get it out, however, I need clarification on one part.


I am having trouble disconnecting the three flat wires attached to the print cartridge. I tried very carefully to remove them one at a time, the small one first.


I could not get the white slot to come off the board and the wire came out of it altogether.  I stuck it back in, now, I hesitate to go any further.


Are the wires suppose to come out of the holder (or whatever they call them), or should the whole thing come out?


The bottom of the print cartridge is completely clogged. The area where the cartridge rests (out of site) when the printer is off looks like ink had dripped down to the bottom of the printer case.  It's very shinny and wet looking, I'm guessing that can be cleaned up.


I would appreciate any and all help.

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#2 JohnC_21


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Posted 21 March 2015 - 04:55 PM

Hello, and Welcome


What post did you see the instructions on removing the printhead. According to a HP support agent at this HP thread the printhead cannot be removed.

Edited by JohnC_21, 21 March 2015 - 04:59 PM.

#3 coxchris


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Posted 21 March 2015 - 06:25 PM

HP printers and all inject printers have various setting to clean the print head. located under tools in printer settings if you have the application for your printer installed. I would recommend you replace the cartridge if you damage the print cartridge and you install it correctly it will damage the printer. 

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#4 Cericia

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Posted 21 March 2015 - 07:49 PM

John-  The post I found was on HP support 4/29/14. I said print head but in re-reading the post, it says how to remove and clean the cradle where all the gook accumulates and is clogging the print heads.


coxchris- I have tried the clean print head feature a bunch of times but it did not do anything.  I am just wasting time, ink and paper with all the testing. The cartridge was new.


In taking the printer apart, once I got to what I call the cartridge carrier and turned it upside down, it was just packed with thick ink.  There is no way the clean print heads feature would have corrected this mess.


The problem I need an answer to is how to disconnect  the flat wires connected to the back of the carrier.

#5 mjd420nova


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Posted 21 March 2015 - 08:24 PM

I have not seen any method that would stop this buildup of ink in the carriage/cartridge holder, the "spitcup" in the home position and the home position sensor.  Ink can and does get everywhere.  I use q-tips, sometimes the long ones with wooden sticks helps get down into the crannies around the carriage.  Alcohol works best and won't degrade or melt the plastic parts.  A good inspectio mirror will help with the difficult spots, even a small forcept with the curved tip to hold an alcohol swap to get around corners.  Cleaning upon cartridge replacement helps once you know the spots to watch.

#6 bucbean


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Posted 17 January 2016 - 01:54 PM




I have bad printheads as well....


The flat "wires" or ribbons just slip into the "plug" on the PC board....gently tug on them just next to tge pc board and they will slip out...


Be careful and note how it plugs back in...only one side of the "ribbon" has electrical contacts.


I wish I could find a source for replacing my printhead...no matter how hard I try...I cannot get the black to print...



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