Help! I just refilled my HP DESKJET 3847 (ink cartridges 27 and 28) for the first time right after the ink levels were shown low and the red does not print at all! Only the yellow, blue and black ink shows. Everytihng was printing perfectly fine until I refilled it. Is it possible that there might be air bubbles inside the RED channel or something blocking it from the REd from going out? Or I refilled it too quickly? Whatever the cause is, can there be a solution to solve this problem? I already did all the "cleaning Cartridge" tests and procedures both from the software setup and physically as well with the q-tip dabbed with warm water and rubbing alcohol. i even used my lexmark rubber nozzle to suck out some ink, even though it was too small for the HP cartridge, some ink did eventually go out and the RED printed for a while but about half page it just faded away into YELLOW. Does anyone know an alternative solution into fixing this? Thank you for your time. **EDIT**: When I was sucking out the ink several times, sometimes it would be blue, red, yellow, and green. All in all, there would always be bubbles bubbling up in the syringe. Should that be normal?