Unclog cartridge nozzles

[Dave C.]

Recently a poster, Steve, I believe, posted a tip on putting a cart (HP #57
tri-color) in a sauce pan with 1/4 inch water and bring it to a simmer. I
can not find your post and do not recall the procedure sequence. It worked
great the last time I filled my cart. If you can review it here, I'd
appreciate it.

Thanks
--
Dave C.

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[Steve B]

Hi. It's me. I just put the #57 in 1/4" of very hot but off the boil water in
a drinks mug. This is then placed into a bowl of similar temperature water so
as to maintain the temperature of the water in the mug. The longest I've left
the cartridge in was 2hrs and it worked perfect after one head clean.

My last refill avoided all this hot water stuff though. I did the ink level
reset before refilling, so that the cartridge could 'rest' after filling. All
the printer activity during the ink level reset procedure (taping contacts) is
bad news for a freshly refilled #57/#58. I don't think these #57 and #58
cartridges like having to print just after a refill, they need time (overnight)
to settle first.

 

[E. Barry Bruyea]

Recently a poster, Steve, I believe, posted a tip on putting a cart (HP #57
tri-color) in a sauce pan with 1/4 inch water and bring it to a simmer. I
can not find your post and do not recall the procedure sequence. It worked
great the last time I filled my cart. If you can review it here, I'd
appreciate it.

Thanks

There is a much simpler (and safer) method. Hold the print head
portion under slowly running cold water for about 2 minutes. Then dab
the head dry with something lint free. It has worked for me on
several occasions with the 56, 56, 58 HP carts.

 

[Dave C.]

Thanks to both of you, Steve and E. Barry. My recent fill worked fine but
left one nozzle clogged. In photos, it is not noticeable at all, but I
would like to free it anyway. Resetting the level before refilling sounds
like an advantage, and will do that next time.

Meanwhile, I will try holding it under running cold water for two minutes
and see if that one cyan nozzle frees up. That is a quick one to try.

Best regards to both,
--
Dave C.

P.S. I have copied your two posts for my reference file.

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[Steve B]

The very hot water trick should only be needed if most the jets appears to be
totally or almost totally blocked. When this happens I don't think they are
actually blocked, it's a flow problem due to air locks, or as I believe with the
#57 after a refill, it's too much ink 'hanging' under the cartridge head
(because internal pressures haven't equalized) for the jets to fire through, and
when this happens the more you try to print or clean the worse it gets. Hence
letting the cartridge 'rest'.

 

[JustMe]

I have had problems with one color on a Canon printer. I had been refilling
the carts. I just couldn't get one color to print reliable. I tried
everything. Finally I called Missupply and they gave me the number of an ink
specialist that does their refilling. He asked me if the cart had any white
spots in it. which were ink voids and it did. It was air trapped in the
sponge and it would just run dry because it wasn't saturated. There was no
fix except to start over with a new empty or refilled or new cart. I had a
new empty and haven't had the problem since. Now I am more careful when
refilling to make sure the air gets out when filling. A bigger fill hole.

 

[beezer]

I have had problems with one color on a Canon printer. I had been refilling
the carts. I just couldn't get one color to print reliable. I tried
everything. Finally I called Missupply and they gave me the number of an ink
specialist that does their refilling. He asked me if the cart had any white
spots in it. which were ink voids and it did. It was air trapped in the
sponge and it would just run dry because it wasn't saturated. There was no
fix except to start over with a new empty or refilled or new cart. I had a
new empty and haven't had the problem since. Now I am more careful when
refilling to make sure the air gets out when filling. A bigger fill hole.

Great information.. I've recently refilled a genuine canon cartridge
set for a friend (BCI-6) . When they were new, the sponges were about
3/4 saturated. Of course halfway down and lower was purely saturated.

I knew when I opened the cartridge up , the pressure in the sponge
chamber could equalize, it would then fully saturate. Sure enough. I
popped the rubber plug inside and the remaining ink was immediately
absorbed.

As I refilled, the sponge became fully saturated. I then used a
replacement ball seal for the fill hole socket and some good tape on
top of it.

I wonder why canon doesnt fully saturate the sponge. Beside saving
ink, perhaps to reduce static pressure at the exit hole to prevent
over saturation when printing? I could only guess. Perhaps someone
knows and could share any info.