Specifications︰ Suitable for Epson cartridge model：
T5961-T5969/T5971-T5979/T6371-T6379/T596A/T596B/T597A/T597B/T637A/T637Bect.
Suitable for Epson printer model：
Epson7900/7910/9900/9910/PX-H8000/10000/etc.

1．Prepare two sets original cartridges,which should be used in exchange.
2．Install the first set cartridges into printer,then print.When these cartridges show low ink level(Advise keeping there is 20% ink remain in the cartridges to avoid mangle the sensors of the cartridges),take out the cartridges,then reset it by YXD-RP7910 chip resetter and refill ink for reuse.
3．Install the second set cartridges into printer,then print.when these cartridges show low ink level(advise keeping there is 20% ink remain in the cartridges to avoid mangle the sensors of the cartridges),take out the cartridges,then install the first set cartridges into printer. Reset the second set cartridges by YXD-RP7900 chip resetter,then refill ink for resue.
4．Repeat step 2 and step 3 to use the two sets cartridges circularly.

Advantages︰ EPSON7900/7900 chip reseter：
1. can reset original chip and our one time chip;
2. easy to operate;
3. economical and environment-friendly.