Epson Stylus T10: Horizontal bands when printing cyan

Start out by running a "nozzle check" in the printer setup screens. If the cyan isn't printing a full pattern, then do a "clean" pass, up to 3 times. If three times doesn't fix the missing color pattern, it's possible that the cart is defective, and isn't flowing ink.

The most common cause of horizontal banding is generally missing, deflected or clogged nozzles. To see if this is the cause you should first print a nozzle check and examine the printout with a 10x or better eye loupe for any missing or deflected nozzles. If nozzles are missing or deflected you will need to perform cleaning cycles to recover these nozzles. Once all missing nozzles are recovered try printing your document again.
If no nozzles are missing or deflected, check that you are using the correct driver settings for the type of media you're printing on. Also try printing at a higher resolution and turning high-speed (bi-directional) printing off.

The most common cause of vertical banding is over-saturation of the media, usually created by paper "rippling". To correct this effect, decrease the saturation and lower the paper suction. If vertical banding is still apparent print the image with high speed off (uni-directional). If this corrects the issue, align the print head, as described on page 5-6 of the Users Guide.

Head cleaning is for fixing horizontal band. If some point of head cloged, print out will show horizoantal banding. For vertical banding, try using head alignment. Have yo tried printing without high speed (disable high speed option)

You don't need to do head alignment, because it is for vertical banding in printout. Vertical banding can be minimized by disabling high speed option without doing head alignment. If your printout have horizontal white lines, do check nozzle and head cleaning, or you can minimize white lines by printing in best quality (photo).

I have excatly the same problem. I have cleaned the nozzles mutiple times and replaced the blck cartridge twice but I still have patchy printing in the black portion of the test print and horizontal banding in word documents

Status monitor just show approximately, not real level. It might be yellow and cyan ink is out actually.Others, yellow and cyan nozzle may be clog. Check nozzle, do head cleaning. Check nozzle again.

Possible printhead issue.
Please reseat the black cartridge. Let the printer charge like it normally does.
Print a nozzle check pattern. If you see gaps, missing lines or missing colors on the pattern, clean the printhead using the driver. 3 consecutive cleaning cycle is recommended. Compare the nozzle pattern over the last printout. If you see any improvement, you can clean the head numerous times until you get a perfect nozzle check pattern.

the banding is a result of clogged head. I had the same problem and fixed it with many cleanings.

directly hooking the printer to mac and windows computer are you getting bandings still? interesting issue... we will isolate it first by trying to hook printer directly to both computer, if its printing fine when directly connected, then there is something on the application or communication process. try printing a different document using same application when on the network and try printing from different application as well. update me afterwards..

It's NOT a cartridge if this works... I had a similar problem with a 9600 I bought on eBay that had been inoperable over 18 months. Three colors would NOT clear up after multiple power cleanings. Epson support politely solved the issue at no charge on the phone... he had me drop a few drops of warm water on the pad the printhead rests on when not printing. You have to move the printhead to the left to do that by moving up the little lever near the cutter. The pad is easier to reach with a long eye dropper. I used very warm water- not boiling. I replaced the printhead over the warm water pad for an hour. Then I repeated the process and let it be for another 60 minutes. Then I did a nozzle check and what was gummed up yellow, cyan, and magenta nozzles became clear and it's worked fine since. Good luck!