The coupon code for 1ink that is posted here is currently the best deal available for printer ink at 1ink.com. 15% in savings will be given for any eligible ink or toner cartridges. The offer appears to be valid site-wide. It is not possible to use the savings in conjunction with other 1ink coupon codes. If you have not added the 1ink coupon code correctly during checkout, you will not be able to apply the offer after you order is submitted, so make sure it was entered correctly. This limited time offer may have restrictions that are not listed in detail here. All coupon codes for 1ink may end at any time without warning There is no end date provided for the promotion and we are guessing it will be valid through December 31, 2021.