Canon ip7250 Print Head Error

stratman

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Thanks for the good image.

Yep. Warped Pigment Black nozzles. This is thought to be caused by heat, possibly from third party ink that does not sufficiently cool the nozzles during printing. Maybe it is a defect in the design/manufacture. You're guess is as good as mine.

There is also a defect in the Dye ink Black. It looks like the Pigment Black warping extended into the Dye-based Black nozzles. It could just be a separate electrical failure independent of the rest of the print head.

Unfortunately I think it is academic at this point. Your print head is most likely finished and only a new print head will resolve the printing defects. :mad: You can try the workaround I described previously. :fl
 
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PeterBJ

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silkystefan wrote:
The IP7250 print head didn't work in the MG5550 so I just took it apart and sold the power supply on eBay and I might sell the print head too. UNLESS the reason the blacks are printing blurry is because of the print head itself rather than bad timing belts or whatever belts move the print head.

As mentioned by stratman the blurring is most likely caused by an unsuitable ink. So I suggest to use the new(?) printhead in the MG5550 instead of trying to sell it. If the printhead is a bad one from the far East then you will avoid trouble with an angry buyer! If the printhead is OK then your MG 5550 will be back in business.

But see this thread from the druckerchannel.de Canon forum. It seems to confirm the suspicion about the bad ink. Notice that it only took one set of aftermarket cartridges to ruin a printhead that had printed less than 400 pages. I don't know what ink or cartridges you are using, but it might be a good idea to try another brand.

Edit: linking to a Google translation of a druckkerchannel page still doesn't work. You can insert the druckerchannel
page in Google Translate yourself and get a translation that way :idunno
 
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Flageborg

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Did you try to clean the printhead?
 

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Flageborg

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I bought a second hand Canon IP7250 a few weeks ago. I've had terrible luck with second hand printers in the past but this one seemed pretty good.
The nozzle check page printed perfectly and I could see it had printed less than 250 pages and the ink in the printer was still the original Canon cartridges that came with it.
"printed perfectly" - less than 250 pages... 🤔

Did a check on my own ip7250 and it looks perfect....and it prints photos perfect.
It is when I have a look at the details it looks like Canon printhead start to degrade from day #1 of use....and it is not built to last
 

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The Hat

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it looks like Canon printhead start to degrade from day #1 of use....and it is not built to last
I have a iP4500 with the original head in it for more than ten years and printed more than 50,000, so do you reckon I got a lemon..:hu
 

Flageborg

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I have a iP4500 with the original head in it for more than ten years and printed more than 50,000, so do you reckon I got a lemon..:hu
20 years ago products were built to last... ;)
 

Flageborg

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This is my second-hand MG7550 prior to printhead cleaning...and quite similar to "silkystefan" which shows around 4000 pages and actually caputski...
 

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The Hat

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20 years ago products were built to last.. This is my second-hand MG7550 prior to printhead cleaning..
This was ten years ago, not 20..
The reason why the MG7550 head is dying, is because these printers don’t like to be run on 3rd party inks..
 

Flageborg

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This was ten years ago, not 20..
The reason why the MG7550 head is dying, is because these printers don’t like to be run on 3rd party inks..
The printhead of ip4500 was developed around 20 years ago...
Good to know that my MG7550 has been run with Canon OEM ink only prior to my nozzle-test... :thumbsup
 

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