The R3000 is a great machine, so please don't be discouraged or upset by your decision to buy this model. The intention of our recent newsletter was just to inform users what to avoid and how to get the most out of their printer, because we feel this is an awesome little Pro printer, but are learning based on feedback that we receive from customers, that many people aren't using the printer or carts correctly and we want everyone to have the best experience possible with their printers and our products.
You resolved your previous problems and were happily printing, but then the problems started again. At this point, what did you do to try resolving the issues- did you do any regular cleaning cycles, or manually clean the printer? Did your issues return after removing/refilling carts (it can take some time for air to travel thru the lines, depending on how much you're printing).
If you suspect you're dealing with air in your ink system, then this is what you should do:
1. Make sure all carts are properly filled with ink, with the exit chambers at least 1/2 filled with ink and air vet holes opened. Tap filled carts gently exit valve down on a folded paper towel to force ink down and air up, then install each cartridge into it's correct position by making sure it snaps snugly into place for a good connection.
2. Download the Adjustment program from 2manuals.com and run the Ink Fill cycle, which will move ink from carts to the print head for continuous ink flow and purge any air that may be trapped in the lines or dampers.
3. Print a nozzle check and if all channels are fully printing, continue by printing images
4. If your nozzle check isn't perfect after doing the Ink Fill, then it would be a good idea to manually clean the printer's capping station, wiper blade and bottom of the print head by following our written instructions and video (which you can find here: http://www.inkjetmall.com/tech/content.php?133-Printer-Preventative-Maintenance)
You do not NEED the flush kit to purge air, but we recommend the flush kit when dealing with stubborn clogs or for flushing the ink and safely storing the printer while it's unused for a period of time.
I hope this helps, please let me know if you have further questions or there's anything further I can help you with.
Best regards~ Dana:)