Both original and good quality colour ink have their strengths. People often mistake the printout of original ink as the standard. Printouts may appear to be different whilst applying the same colour scheme (cyan, magenta and yellow). Magenta of one brand may appear to be purple, but another may appear to be rose red. The printing effect will not be exactly the same if you compare colour printouts of different models of printers or different brands of ink.
Ink saturation, type of paper, printer resolution, image quality, printing speed and even humidity may all have effects on the quality of the image. Ensure that the media settings on your printer match the media you are using. Also, colours may vary with different types of software (eg. Photoshop and Corel draw) so the settings may need to be altered accordingly