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Manual head cleaning of HP 6520e printer
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Bob F
Feb 19, 2015, 9:37:10 PM2/19/15
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I have a printer given to me that does not print properly from the black print
head. There are regular horizontal gaps in every printed head, which I think
indicate plugged jets in the print head. I'd like to manually clean the face of
the head with ammonia water like I have previously on other printers, but this
unit does not seem to offer any easy access to the actual print head. Can anyone
suggest the easiest way to get to it, perhaps with a cotton swab?
I have tried multiple cleaning cycles, and printing pages of all black with no
improvement. They print well except for about 1/8" gaps horizontally every 1/2".
head. There are regular horizontal gaps in every printed head, which I think
indicate plugged jets in the print head. I'd like to manually clean the face of
the head with ammonia water like I have previously on other printers, but this
unit does not seem to offer any easy access to the actual print head. Can anyone
suggest the easiest way to get to it, perhaps with a cotton swab?
I have tried multiple cleaning cycles, and printing pages of all black with no
improvement. They print well except for about 1/8" gaps horizontally every 1/2".
Bob F
Feb 21, 2015, 12:02:34 AM2/21/15
to
to be not printing, this might be more likely perhaps to be an electrical
problem in the signals to the print head. Any opinions?
Mike
Feb 21, 2015, 4:28:27 AM2/21/15
to
one section are clogged it could be electrical. Or a particularly sticky
ink?
I had a couple of Epson Stylus 860 (IIRC) and did dismantle to the point
where I could soak the print heads. But I didn't know about ammonia. The
heads travel on a nice shiny round bar which moves to give variable
clearance to the paper. As well as freeing the bar it was necessary to
disconnect the drive belt and the position-sensing ruler. Not too
difficult...
Mike.
Bob F
Feb 23, 2015, 1:06:48 AM2/23/15
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today, it started to work better,and after a dozen or more pages of printing big
black blobs, the unprinting areas started getting smaller and smaller, until
they went away.. It took most of a new black ink tank total to get it working.
So I guessthe problem was plugged print heads or the ink path to a section of
them, and the ink finally disolved a path through. I hope it keeps working.
Message has been deleted
Mike
Feb 23, 2015, 8:29:41 AM2/23/15
to
On Sun, 22 Feb 2015 22:06:46 -0800, Bob F wrote:
> I continued exercising the printer occasionally over several days.
> Finally, today, it started to work better,and after a dozen or more
> pages of printing big black blobs, the unprinting areas started getting
> smaller and smaller, until they went away.. It took most of a new black
> ink tank total to get it working.
>
> So I guessthe problem was plugged print heads or the ink path to a
> section of them, and the ink finally disolved a path through. I hope it
> keeps working.
Don't forget all that ink will have gone somewhere! Don't tip the printer
> I continued exercising the printer occasionally over several days.
> Finally, today, it started to work better,and after a dozen or more
> pages of printing big black blobs, the unprinting areas started getting
> smaller and smaller, until they went away.. It took most of a new black
> ink tank total to get it working.
>
> So I guessthe problem was plugged print heads or the ink path to a
> section of them, and the ink finally disolved a path through. I hope it
> keeps working.
from the horizontal or you may find out where...
Mike.
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