R2400 only uses four colours out of eight

Hello, Alex. First, you may need to perform up to a maximum of four nozzle checks and cleans to restore a good nozzle print out. Also, print the following up to 6 times or until your nozzle check is successful. Hope this helps.

first check out printing any colour document or picture/photo and see if its missing any colour in it or its coming perfect. -------------- many times to save ink the nozzle check patern prints some colours not all. ------------ but if the colour prints have problem in printing and colors are missing in copies then there are two options 1) in the printer there is clean the ink head option.do that 3-4 times and check if the problem gets solved. 2)if the auto cleaning does not solves the problem.then the printhead of the cartridge needs to be removed from the printer.the printhead is the part of the printer where you insert your cartridges.if the head is got blocked then it will not print from the block area.so clean the ink head manually by placing it in water for near to 24 hours.take care after 24 hours.you clean the head with isoprophyll where the nozle is then completely dry the head before reinserting it in the printer. ------------- if still the same problem then the head needs replacement. ---------- for cleaning the head click this link directly http://www.photo-i.co.uk/BB/viewtopic.php?t=2631&highlight=cleaning+print+head+clogs ------------ for more help click this link directly http://www.marrutt.com/epson-r2400-support.php -------------- This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya.