After running the nozzle check and head cleaning several times, the nozzle check pattern shows very few black lines and inconsistent levels of coloured lines.
Sounds like the print head needs alignment. If an "auto" alignment can't or won't be run, somewhere in the maintenance section of your printer driver software should be an operation for running a print head alignment and doing adjustments to get the printer aligned for clear printing. First you should check the maintenance program for "head cleaning" and run a couple of head cleaning cycles to see if a clogged head is the problem...
SOURCE: Epson 1290 printer
Fix posted yesterday BUT after a few perfect print outs the problem seems to be recurring.... will report back later. Trant
SOURCE: after replacing the black ink nothing prints
Hello, I am having the same problem and have done extensive research to find out that with this exact problem you have mentioned, you must clean the printer head, nozzles, and waste ink tube. the process is a bit long and needs patience. You will have to take the print head assembly out of the sliding caddle and put it in a glass of rubbing alcohol to disolve the dryed ink within the printer head assembly. it is held in with a silver metal plate that runs across the assembly and screws to the sliding carriage. be carefull to remove the black clip on the right of the carriage to take it out. note to be careful to not pull the white info lines of the head. leave it in the glass overnight and also clean the tube that runs under the waste pad station and clean the clear waste tube as well. ....Good luck
SOURCE: Black not printing about every 3rd line
You have the classic single nozzle failure it appears. You say you have done a nozzle check. This should reveal that one of the black nozzles is not working i.e. there is a single gap in your nozzle check printout for the black nozzles. Now, this may be due to a blocked nozzle. Try the following print head soak process.
Turn the printer on, and as soon as the print head moves pull the power cord out of the back, or turn the printer off at the mains. You may now carefully move the print head by hand over to the left hand side out of the way. Look inside the print head parking area on the right and you will see a small rubber cup that comes up to cover the print nozzles when the head is parked (to stop it drying out). Use a syringe or dropper to fill this cup with head cleaning fluid or distilled water. DO NOT USE TAP WATER. Carefully push the print head fully into its parking position so that the cup full of fluid comes up over the print head. Leave this for at least 24 hours, then try a head clean again. If still nothing, report back
SOURCE: If the nozzles on my printer are clogged
Most modern printers will "park" the cart. over a small sponge or some other material that will prevent the printhead from clogging, but if it will be "Parked longer than about one Mth." they can clot up.
The printhead on most printers is actually on the cartridge itself, so if you are still having a problem after changing the cartridge.
(I am assuming you are using NEW, not REFILL carts.)
Then I would suggest checking all connections, and as a last resort Uninstall and reinstall the printer software. If all else fails try a printer reset by unplugging the power and press and hold the power button for 30 sec. then plug in and test.
Thanks for the fixya ratings, all I can do is try to succeed in all I can do, is my motto. I hope this helps
SOURCE: my epson cx 6600 black ink not printing.i have
The Black nozzle is Clogged. There are several fixes, too long to write here. Go the website below, they have tools, cleaner, instuctions.
http://www.inkproducts.com/ink-store/
(Maintenance) button repeatedly until y appears.
(Maintenance) button repeatedly until A appears.
(1) Check if lines are missing in this pattern.
If yes, the cleaning is required.
If the print quality is poor, perform print head cleaning.
Print the Nozzle Check Pattern again.
< 1 > The normal nozzle check pattern
< 1 > The normal nozzle check pattern
ink light is off. 
ink button for 3 seconds until the 
On light starts flashing. The Stylus CX runs a head cleaning cycle and the On light flashes. 
Caution:
Never turn off the Stylus CX while head cleaning is in progress. You may damage it. On light stops flashing, turn off the Stylus CX. ink and 
On buttons together and hold them down for about 3 seconds. The Stylus CX turns on and prints a test pattern, which includes a nozzle check. Shown below are some examples of what the nozzle check may look like: 
Nozzle check pattern with gaps
Note:
If you don't see any improvement after cleaning the print head three times, turn off the Stylus CX and wait overnight. This lets any dried ink soften. Then try cleaning the print head again. 218 views
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