Could it be that during the hours that we've been testing, nozzles are starting to degrade? We've recently cleaned them but we're getting poorer and poorer results. I've noticed that the first print (with FFC cables of Left and Right Cartridge swapped) were actually pretty good. It was only printing with the Ascorbic acid cartridge. Not sure why it didn't fire any other nozzles. The incorrect wiring of the motors also explained the fact that two images were printed with ascorbic, these were printed IN ONE PRINT JOB. That is resolved now. But my questions are: - Are the nozzles already blocking? - Can I somehow revive my cartridges? - Could it be that only half the nozzles of each cartridge are firing? I believe that there are two rows of nozzles, correct? - Cleaning with 96% alcohol didn't do much. I can try ultrasound in water. What works best?