No ink coming out of printer while printing

You mention the printer model as being Epson NX230 but you have not included anything about your computer's operating system and that could have an important bearing on resolving this situation - also as I do not have any idea where you reside, I can only suggest you do the following, which should resolve your problem.
Go to http://www.epson.com and select where you reside in the World as the first step. Then go to the Support area for downloads and download the drivers and other software (like Epson Print for example) and install them. In most cases, Epson will correctly identify your computer setup so that you go to the right area for drivers, etc. to suit your computer's operating system (like Windows XP, 7, 8 etc. or Mac) but it is still a good idea to find this out before you go to the website - as a safety precaution. If Windows, open Windows Explorer (Start - All Programs - Accessories and click on WE) then click on HELP in the menu at top of the screen and then on ABOUT and it will show you what OS you have and some other useful information.
You can simply use the download to update the drivers etc. for your printer but the best way to resolve any conflicts is to first remove the existing printer installation. Start - Control Panel - Devices & Printers - click with right mouse button on the icon for this printer and left click on Remove - or Delete - will depend on the OS you have but you should be able to see what to do. After removing - restart the computer, then download the drivers and install. That should resolve the problem. Of course, you need to have the printer OFF during the removal and do not switch On until told to so do during the re-installation routine.

Change Ink Cartridge in Epson Printer isn't a difficult. Just follow the simple steps to change ink cartridge in Epson Printer:

·Turn on Epson printer·Open its cover or scanner then left the unit of the scanner and wait for it.
·Ensure that the print head is at replacement position. If not the press "Maintenance" button.

Follow the more steps to change ink cartridge in Epson Printer.

Google your copier machine and locate how to service Epson printer .With youtube.

You may download the manual and more from here.

Any changes to font size, color, etc is controlled by the software in your computer, that you are creating or viewing the document in - if you are just viewing a document in something like Acrobat, you cannot change the type size- your only option is to "blow" up the output, but it might be bigger than what will fit on one page of printer paper

Here's a tutorial on how to do it:
Solved Epson printer doesnt recognize Ink Cartridge

The process is quite easy, here is a short tutorial on it:

Solved How To Reset Epson Ink Cartridge

When turned on, the printer initializes the cartridge, and perform inkcharge. So there is some ink discharged to waste ink pad. The printer calculates the amount of waste ink, and when the waste inkreaches a certain amount, which approached the waste absorptioncapacity pad, then the printer will stop printing command. Intendedto waste ink does not overflow from the waste pad. To be able to re-use the printer must be reset waste ink counter., and replace thewaste pad. Or it could also extend the exhaust hose to outsidebottle.

Sounds like a bad ink cartridge. The ink is probably clogged up in the print head where the ink comes out of the cartridge. You should either bring it back to where you purchased it for a replacement, or you can try priming the ink.

To prime the ink:
1. Get a wet paper towel
2. Get a dry paper towel
3. Take the bad ink out of your printer
4. Move the ink back and forth from the wet towel to the dry towel touching the print head (part on cartridge where the ink comes out) to the towel.
5. You should begin to see the ink come out in a higher consistency

This will help unclog any ink stuck in the pores of the print head. If that doesn't work, you may need to get a replacement from where you purchased it.

Hope this helps :)

in the print head there are hundreds of minute holes from where the ink of the cartridge comes out when you remove the head check whether the ink is coming from the holes in the head .if the ink is not coming the head may be dry and if the very less ink is coming then some of the holes are blocked. the ink has to come out from that holes for printing.

thanks.