Problem with canon pi 4000

There is probably dirt on the rollers or on the paper carrier. You could try running the printer through a self clean first. Go into the printer settings, menu, locate self cleaning and press that.

just clean the rollers this works for me canon ink cartridges

The transfer roller may have a flat spot on it. (I assume the stripe runs parallel to the narrow edges of the paper.)

A roller problem will show up as a repeated stripe. Measuring the distance from one stripe to the next (use the same edge on each stripe) will give you the circumference of the offending roller. Divide this by ? (about 3.1416) to get the diameter. Each roller is a different diameter, so that makes it easy. Use the metric edge of the ruler - the math is simpler.

The stripes are generally caused by a blocked nozzle (or 2).
Remove the cartridges and then remove the print head from the printer.
Run the print head under some warm water for a few minutes - concentrating on the pit at the bottom where the ink comes out - all those coloured slots!. When the water runs clear. take some kitchen roll and dab the thing dry - don't rub. Make sure there is no water on the electrical contacts on the back and refit the print head into the printer and then the ink carts.
Try a couple of prints now. What happens?

Take the cartridges out and also the printhead and set the nozzle of the printhead on a 5-sheet pile of kitchen paper that was make wet in the middle with some lukewarm demineralized water ( water for an iron )there is not much necessary if there are clogged nozzles deep inside the printhead buy cartridge flush different methode for printers to find
How To EASILY Unclog Ink Jet Print Heads

Try pushing the reset button for about 5 seconds. This has worked for me.

perform an Alignment test.

if your still having trouble then dont hesitate to contact.

1. Do you use refilled or genuine Canon cartridges?
2. Anyway, try to clean the printheads, because they seam to leak.
3. Verify if the cartridges are correct alignet (in maintenance software you have soewhere an "align cartridges" function

same problem!!!!! temping to get another printer - help!!!