I tried five refillable cartridges providers, first finding there are only two molds! ... A Chinese and a German. German no problems at first, but ... maintains the pins in the carriage are absent (Pb patent it seems) and the motion cartridge! the first was emptied into the printer, the second is not leaking but after defuses a time: fuel. the armor, nonrechargeable a similar defect. Chinese: PGI 525 (black) is not recognized! it has the pin, but too high, is compensated for by an additional seal, except that the felt is not in contact with the head! they had to repay. Those presented here are the 2nd model.
