I emigrated with my P800 from HK to UK. Recently I bought a cartridge and found that the cartridge has a different code for the same color comparing to one I got in the printer. Epson customer service told me that I can only use cartridges that are bought in HK. Since I already have the ink cartridge, is there any way where I can transfer the ink to the old cartridge? I read about using a syringe to suck out the ink in the refill hole. Is that feasible on P800 series cartridges? Thanks.