Question about Canon MP640 All-In-One InkJet Printer

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MP640 Canon printer. Cyan ink not printing. Tried all the cleaning programs several times, no luck. Took the head out and wiped with spirit and still no luck. Reloaded the drivers to no avail. Also tried 2 new cyan cartridges.

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If you try all this you need to replace the print head,the print head is under the cartridge.If i have been useful please give me a vote :).Thanks

Posted on Apr 01, 2011

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Posted on Jan 02, 2017

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1 Answer

One colour, Cyan will not print.


Some nozzle on print head is clodged. Remove the head, on some cloath, spill water and few times press head nozzles on it ( bottom side ), dry it and then do the head cleaning. If dont help change print head, when print head is changed its also recomended to change absorber and purge unit too.

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Canon Pixma iP4600 not printing cyan


I had the same problem and I finally FIXED IT. I first tried replacing cartridges - no good, I then took the print head out, dismantled it and washed every component, no good. I then noticed that there were small streaks of blue on the paper when I tried to print a blue image so I worked out that the blue ink is getting through, but very slowly (yours might not be getting through at all but don?t worry this should still fix it). So I got a very thin pin and pushed it into the cyan pad on the print head creating a thin channel for the ink. Tried to print again, perfect, blue now working. Hope this helps - remember, you do this AT YOUR OWN RISK, there is no guarantee this will work for you, it worked for me but there is the obvious risks that you may break your printer. I did it because it was broken as far as I was concerned and I had nothing to lose if it broke completely, you must make that choice yoursel

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1 Answer

Pixma ip4200 willl not print Cyan


I think the problm lies between the ink tank and the printhead. When this passage runs dry, sometimes it takes time for the ink to fill this passage again. Try printing again after a day or two.

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1 Answer

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Hi,
Your Cyan cartridge is empty and need replacement. Maybe you can clean head of Cyan cartridge with alcohol but symptoms are the empty cartridge!
Good luck.

Sep 11, 2008 | Canon PIXMA MP830 All-In-One InkJet...

1 Answer

Cannon i 860 can't get the cyan to print - have run cleaning operation several times deep cleaning @ least twive & checked ink tank visually put new ink tank in put a Q tip to the head there is ink -...


Then try this, it works for me!!!
Canon will hate me for this.

1. Remove ink cartridges.
2. Remove print head.
3. Go to sink or tub (stainless steel, not plastic type), pick up a roll of paper towel on the way.
4. Fold several layers of paper towel and place on flat surface.
5. Run hot water until HOT!
6. Turn hot water back to a dribble.
7. Run the dribbling hot water through print head being careful not to wet the gold contacts.
8.When water running through print head is clear, place print head on paper towel.
9. Repeat number 7 and 8 until no colour shows on paper towel.
10. Gently DAB print head (DO NOT WIPE) inside and out with dry paper towel until dry.
11. I normally replace print head after drying, but you may wish to let it air-dry overnight.
12. Replace print head in printer and install cartridges
13. Start printing.

I do this to all 4 of my Canon printers every 6 months or so.

If any colour fails to print after this process it means your print head probably needs replacing.

Jul 06, 2008 | Office Equipment & Supplies

2 Answers

Won't print(after changing cartridges


blank pages and bad print are not the same problem. Regarding costly ink, a epson printer tech told me once that the secrete to cleaning a bad print head was to run deep clean 7 times in a row and then a head test and it has worked for me several times on other printers (not an expert here, just personal experience).

Additional note, I have seen both cleaning chemicals and cleaning cartridges on the web, example, searching google for one for my printer I would search for cc-bci-6c which is for a canon cyan cleaning cartridge. Don't know if they work but in case it helps.. good luck.

Barry,

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3 Answers

I960 canon printer


Lift lid ,let carriage stop in middle, un-plug the printer > Remove all ink tanks > Remove print head > Soak print head in > 3 parts very warm water an 1 part ammonia over night. Rinse under faucet with water directly over ink ports, shake out excess water,(if when you shake it out and if color still comes out repeat soaking for another hour or two and rinsing again ,HAD TO DO MINE TWICE) let air dry. (hair drier helps) Cured my problem for a while ,but if not used almost every day, this will happen again, I also use compatible ink tanks. Don'T believe the inks are as good as Canon Ink. But who the hell can afford them. So fill your owe with Canon ink from Canon. Still seems that the cyan always dries up first. Good luck Lestero1

Oct 18, 2007 | Cannon Canon i960 Photo Printer

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