Parts or repair items and items that we cannot fully test are only guaranteed to have the functionally described. No further functionality can be guaranteed for these items. Used printing consumables and batteries are not guaranteed.Thank you for shopping with us! Please request an adjusted invoice before checking out. Please plan your orders accordingly. We can then adjust your invoice before checkout. For items that are tested and working properly: Our return window for working items listed as "New" or "Used" at the top are 30 days. These items are only guaranteed to have the functionality as described in the listing. Please see the listing description.