Urgent help Canon ip4920

[oroblec]

First I will try the hat method.
After cleaning and getting my fingers dirty see how it looks like

 

[oroblec]

After some cleaning and deep one same results what will be next step.. . ... Clean printer head 24 hours into winded solutions or any other idea. Another stuff when I try to clean or deep clean I see I lost more the color like printer head clogged

 

[PeterBJ]

I suggest first trying the print head cleaning from the first link in post #20. If unsuccessful you could continue with the other methods from the second link in post #20.

Note that water or cleaning agent left where it does not belong, especially behind the ribbon cable and circuit board on the print head, can damage not only the print head but also the logic board, making the printer a total loss. It is important that the print head has been properly dried, before reinstalling it.

 

[oroblec]

OK I will get windex but I not sure if I need to cover the print head complete with the solución or just the noodles it will be more for me with some pic cause I don't want to damage printer

 

[PeterBJ]

You should avoid getting cleaning solution behind the ribbon cable and circuit board, so only a few millimetres of liquid should be used. I would not submerge the print head. This is my suggestion for a gentle cleaning method: http://www.printerknowledge.com/threads/canon-mp540-saved-by-pharmacists-cleaning-solution.8176/

 

[The Hat]

I still think it could be the purge unit that’s at fault here and all the cleaning in the world of the print head won’t give a good nozzle print, you should try and clean up the whole area around the purge unit, then test it to see if it’s working properly.

You should also be mindful of not getting the electrics on the back of the print head wet as described by PeterBJ.

 

[oroblec]

so continue cleaning the pad with alchold rigth ?

 

[turbguy]

This is the result after the purge it looks like black pgbk wants to come againView attachment 403

This intermittent scattered printing of PGBK indicates (to me) that some of the cleaning solution on the purge pad was absorbed into the PGBK nozzles and was used during printing. That indicates that the PGBK nozzles are WORKING, but there is no ink supply to replace it. The most likely cause is a non-functional purge unit. Continued soaking of the pad with windex (overnight) "might" eventually help IF the purge unit is clogged. I would suggest using windex applied with an eyedropper to build a standing pool of solution on the pad for PGBK and letting it sit (with the printhead parked) overnight. Then try another nozzle check....don't pool onto the color pad, otherwise cross contamination of colors will occur.

Concentrate
Wayne

 

[oroblec]

OK I will continue tomorrow with wonder solutions cause not luck with alcohol this are picture of my printer so we can see another stuff that can be clogged my printer.

 

[turbguy]

That printer interior shows a lot of use. Particularly the print head appears to need a good cleaning/soaking. I didn't read your past posts, but have you soaked it in about 1-2 cm of ORIGINAL FORMULA windex ("with Ammonia")? I'd submerge it all the way to just above the inlet nozzles resting on soft folded paper towels in a shallow container (with very gentle up-down agitation), changing towels/windex until the solution is clean, then lightly blow into the inlets with dry (canned) air and repeat until clean(er). Keep in mind the nozzle plate is VERY fragile. AND it must be dry behind the ribbon cable before re-installation. And blowing will project ink out the nozzles, so be prepared fo a mess.

The longer, narrower set of nozzles are the PGBK nozzles, which rest on the long, narrow parking/purge pad at the farthest back (which is really a thin piece of porous ceramic material). Have you tested the purge system for proper operation?

Wayne