I purchased this about 5 years ago. The expiration date is unknown. I stopped using it when my printer broke, and it has been stored at home ever since. It's unopened, but since I haven't actually used it, I don't know if it will work properly... The case is bulky and will increase shipping costs, so I will take it out of the case, wrap it in bubble wrap, and ship it via post. (It will be sent anonymously via Yu-Packet Post Mini). If you would like the case included, I can ship it via Yu-Packet Plus for an additional 300 yen, so please comment. Please understand that this item has been stored at home for a long time before purchasing. If you would like to see more detailed photos of the product, please feel free to ask (^^) ■Please read my profile before purchasing.