My printer now is keep blinking with red light on the ink in my printer?

In general it means you ink in those cartridges is critical low and needs replacing! But if you put a new set of cartridges in and its still blinking....it could mean that those new cartridges are Refilled ones and not brand new and therefore the little circuit board on those might ve been damaged. Or you just need to manually reset the ink status on your printer! Just connect the printer to you computer and open the file application, from there look for Printer Maintenance tool and the tab for the ink replacement. From there you usually can reset it by entering the info about your new inserted cartridge ( that would be on a Lexmark printer ). It will then print a test page and after that its ready to use. Or here an introduction to resetting the ink level indicator on a HP F4200 series printer http://www.youtube.com/watch?v=-QEHBgQUfHY But if the cartridge is indeed damaged then you just have to replace them again. Also try to wipe over the inside your printer where the cartridges are stored, to remove all excess ink that might interfere with the indicator.

There's usually a sequence of buttons that you need to press when you change ink cartridges, my friend, to let your printer know that you've changed them. Unfortunately, you haven't given any indication as to what printer brand and model you have so no-one can tell you what these buttons are or what sequence they need to be pressed. The information, however, will be included in the anua, which you'll be able to find on the driver disc that came with your printer ... or downloadable from the website of your printer manufacturer.