One issue I have seen on the 1430 that I've not seen on the 1400 is tendency for the machine to register that it is out of ink in one tone when it is not. The out of ink light will come on an the print job will stop. The solution is to press the refill button, which parks the head, open the ink tank cover and remove the offending cartridge. Then, holding the cartridge by the ends with your thumb and first finger, rotate it fully left and right a couple of times. Replace the cartridge and hit the ink button again. In most cases, after the long head cleaning process, the print job will pick right up where it left off, not leaving a single flaw on the print. Sometimes the light comes back on and another cartridge is indicated as out of ink and you have to do this again. The 1430 seems more sensitive to third party cartridges than the 1400, which always worked flawlessly. I've not seen this behavior with Epson Claria cartridges.
If you print on heavy papers, like RR San Gabriel, the printer will leave roller marks. The solution is to change the setting to envelope mode, which allows for thicker paper. The setting is buried in the maintenance settings and is not obvious to find.