Hello - For some reason the yellow ink is also printing in the cyan and magenta (and possibly black) colors. When I create a test page with 4 squares (cmyk) - the yellow prints in all of them (I can't tell about the black) and ALSO the yellow alternates between solid and striped each time I print the test page. The same thing happens with any other pages, even things I have already printed before. Can you help? thanks
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Most printers have 4 color inks: Black, magenta, cyan, yellow.
If your magenta ink isn't printing, then your prints will have a green cast.
If your printer has a "nozzle test", I suggest doing that. If it has a "head clean" function, that may help.
Replacing the magenta ink cart may be all that's needed.
Since the model is not found, its difficult to say. however in most cases the subtractive colors are used ie cyan,magenta and yellow. with mixing these white is produced but in case of basic color used ie. red,green and yellow, on mixing these black color is produced. Mostly cyan, magenta and yellow is used hence you can not produce black color so the a complete color print not possible.
The inkjet printers print colors as they combine the major 4 colors contained in the cartridges CMYK (or said in words cyan, magenta, yellow and black) in some proportion.
If you print black the printer gets ink from the black cartridge only. If the black cartridge is empty some devices start to print black as a combination of the colors in the color cartridge - for example gets some of the cyan, gets some of the magenta, gets some of the yellow.
In your case maybe some of the other colors are empty too (or the nozzles are clogged) and the printer cannot prepare the correct mixture of colors to start printing black.
I suggest you to change both black and color cartridges.
Hope this helps.
This model printer has only two slots for ink cartridges. One is for a black ink cartrigde and the other is for a tri-color cartridge which contains cyan, magenta and yellow inks. This tri-color cartridge has run out of yellow ink, you need to replace this tri-color cartridge.
Sorry, steve, that you are experiencing this problem.
According to canon.com's website regarding the i9900 InkJet Photo Printer:
Why color ink may be used when printing in black and white
Even when printing in black and white, color ink is used for the following reasons:
Automatic cleaning of the print head.
To prevent the print head nozzles from clogging, the print head is automatically cleaned periodically. At that time, a small amount of each color ink is consumed.
Therefore, although printing in black and white is performed, color ink is also consumed.
Color inks may be used to create black.
When printing in grayscale or on photo paper or when duplex printing, although printing appears in black and white, the color black may be created using the three (cyan, magenta, and yellow) color inks. Printers without a pigment black tank / cartridge will print black / grayscale will create a composite black using color ink even on plain paper.
Therefore, although printing in black and white is performed, color ink may be consumed.
In order to keep the heavy black ink from smearing on the page or in the printer, color ink is used when duplex printing to help create black text.
I might suggest taking out the color ink cartridges leaving only black there, but some printers don't take kindly to this. So, you may have to further experiment with magenta, cyan, and yellow to make it at least seem b&w to your best eye's judgment.
You are more than likely out of magenta (red) ink. That printer uses a tri-color cartridge, and it has cyan (blue) magenta (red) and yellow ink. Green is blue + yellow-therefore you do have those two colors; since it will not print anything red or black you will need to replace both cartridges.
Without knowing what printer you have or what things you have tried I can only guess here. It sounds like you need a new cartridge. A color ink cartridge will have 3 colors of ink for most printers...cyan (blue), magenta (purplish-maroon), and yellow. Depending on what you print it is very possible that you could run out of one of the inks before the others. Printing green can be an indication that you are out of magenta ink. The cyan and yellow inks will combine and look green.
You can remove the cartridge and run a tissue over the printhead and see if you see all 3 colors as a quick test. If you only see cyan and yellow, then the magenta is probably empty or dried up. If you see all 3 colors I would reinsert the cartridge and try printing again. It is possible that the magenta was just clogged and you cleaned it with the tissue. If it still doesn't print all colors your best bet is probably to just get a new ink cartridge.
sounds lke your yellow nozzle not working properly...had same issue on lexmark printer, ended up geting this epson...learnt from my mistakes...perhaps it ran dry? or you left the yellow cartridge out longer than the rest....only you might know what happened