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Problem with printer

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I have an oldish Canon printer which, when printing colour documents is fine - including the black and white text. Same same if I print a page as an image.


However, when I print a mono document, the text is broken and faint - for all the world as if the jet was partly blocked. It doesn't matter what format it is, pdf, Word, whatever. I have tried the cleaning routine in the printer software, without effect.


Any ideas what the problem might be?

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If the print head is removable - Canon print heads usually are - try soaking it in Windex or some similar glass cleaning fluid for a few hours.  You don't need to immerse the whole thing, just the part with the tiny little jets.  A bit of agitation probably helps. You may need to repeat a couple of times.  Then take the head out of the fluid bath and carefully remove the excess liquid, using a tissue.


Now reinstall in the printer and run the head deep cleaning cycle - you may need to do this more than once.  Hopefully, the printer should then work normally.  No guarantees but I have used this technique on blocked print heads and it has always worked for me.  Worth a try anyway.


You may need to re-align the head after this - there will be a procedure for this in the print driver.

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if it is not expensive

"Wreck it buy a new one"

sounds like printer head is blocked
can try cleaning by soaking as suggested above etc
you can also buy a new printer head from China to fix
(buying locally will be more expensive and usually not worth it)

you might be better to just save time and go buy a new cheap printer
as it doesnt sound like you use it much
remember to print a page at least once a week just to keep the heads clear

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Thank you all for your replies. I think Patman is right - the problem has come from not using it much, and one cheap printer to replace another may be the way to go. It is, after all, over 6 years old.

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