If the chips are older style they most likely wont work. The problem sounds like it is in your refillables. The vents on them get clogged, the sponges get clogged. Your can clean them out with very hot water. Also the bottom of the print head can have a lot of build up if you haven't cleaned. Since the 1400 has no ink lines and is a over head in supply when things like this happen it usually has nothing to do with the printer itself when it pertains to ink supply issues.