Valid 1/12/14 -1/18/14. Offer valid online at staples.com or by phone at 1-800-333-3330 only. Offer not valid in store. Limit 2 rebates per household / mailing address. Offer not valid on HP ink. Multipacks count as one toner. Minimum purchase requirement of 2 of the same HP toners must be in one transaction. May not be combined with any other coupon. No cash/credit back. Not valid on prior purchases.