How can I clean the cartridges ? I need to eliminate a green vertical line in the papers.

clean the drum of the toner with tissue paper and reinstall hopefully it will resolve the issue

If the lines are vertical to the direction of the printhead movement, you need to clean the paper rollers and the small "pizza wheels" of your printer. Also check for any traces of stuck paper in the paper path. I recon you ars not using genuine inks, right? Try to slow down your print speed by selecting a best quality setting.
If the lines are parallel to the printhead movement, your printhead is either clogged our stuck.

Hi,
Dots, Lines and smudges on the printouts are due to deteriorating cartridges and cleaning the green drum of the cartridge may help temporarily. Take out the cartridge and gently clean the roller/ green drum with a dry, soft, lint-free cloth wiping off the toner dots marks/ lines. (corresponding to the location where you are having a green line on the paper)
Also, make sure that the visible inside of the printer and the Black belt are clean and there is no spilled toner inside, which sometimes results in dots.
Moreover, streaks (thicker lines) and dots etc indicate faulty PCR Roller which is located behind the green drum inside the cartridge. Replace the Cartridge or get the PCR Roller changed by a professional.

Hope it helps! Good Luck! Thanks for using Fixya!
CreativeTECH

Her are somethings to try.

1. Paper jam
2. Bad toner cartridge or bad toner.
3. Clean the corona wire (see the manual)
4. Drum is wearing out and needs to be replaced.

Sometime a small piece of paper can get jammed in the toner cartridge roller and cause this type of problem.
Also, often this seen with after market toner cartridges or refilled cartridges. Poor quality or old toner will clump inside the cartridge roller wiper blade. Just like dirt under the wiper blade on an auto, it will leave streak on the toner roller that are transfered to the print drum.
Take a look at the toner cartridge first and inspect the long black roller. If the streaks are there then you need a new cartridge.
If no on the roller streaks try to clean the corona wires.
Also inspect the drum to see if has streak. Try wiping drum with soft tissue paper to see if it come off or is etched into drum.
j

Thanks for using FixYa!! I provide my answer for free as a public service - a 4 THUMBS rating and POSITIVE Comment is really appreciated for the FREE answering of your question.

LtCmdr Spock said: "An ancestor of mine maintained, that if you eliminate the impossible, whatever remains, however improbable, must be the truth."

open up the front cover and clean the small scanner glass.

yes, try to use genuine toner

black vertical lines on the printout comes due to some reasons.
1) if the black cartridge is near to its end it will give black lines instead of proper printing.
the cartridges gets over many times due to head cleaning and deep cleaning.in 3-4 cleanings cartridge gets over.in one cleaning 4 ml of ink gets puled out of cartridge.the whole quantity of cartridge is near to 25 ml.
but if the cartridge is full then the problem is of cartridge head .the head is the part in which you insert the cartridges if the head is got blocked internally to its holes from where ink comes out.then there are two methods to clean the head one is head cleaning which you did.the other is removing the head by disassembling the printer and then cleaning the head manually with isoprophyll liquid.but its a time consuming and tough job.a local printer repair center will be advisable,
and in some cases it has seen that cartridge gets air pressure problem inside and due to that it leaks inside the printer so replacing that cartridge solves the problem.also many times the cartridge gets leaked and that leaked ink gets collected and stuck up on the roller of the printer from where paper passes so the strips of ink gets printed on the paper.in this case no head cleaning but cleaning the internal roller of the printer with tissue paper helps.the procedure is called servicing.that can also be done at local printer repair center.or you can do it manually by using tissue paper.but to service whole printer it needs to be disassemble.
check out his option.thanks.

Your printer green cartridge drum cleaning blade is weak.you change it than solve it

the problem is with the cartridge itself and should be cleaned as the toner has dropped on to the roller inside the cartridge and causing the lines. or you could change the cartridge and see if that works.

Go to
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=238&modelid=10444

Type in:
Certain colors are missing or no ink prints on the paper.

Follow steps to fix your problem