AMS Scales warrants each cartridge to be free of defects in material and workmanship, unless otherwise stated under separate contract, for the period of two (2) years after the date of purchase. If any AMS Scales cartridge is found to be defective. AMS Scales will, at its option. Replace the cartridge or issue a credit to the distributor, dealer, or retailer's account. AMS Scales also warrants that, subject to conditions stated below and under normal use, AMS Scales cartridges will not cause damage, abnormal wear, or void the original manufactures warranty for your printers, fax, or copier. If a defect in a AMS Scales cartridge causes a printer, fax. or copier to fail. AMS Scales will reimburse the customer for the full amount for the repair of the printer or copier. This warranty is dependent upon the customer providing AMS Scales with satisfactory evidence that the printer or copier failure was due to defect in the AMS Scales cartridge, including a written statement on an authorized service company’s letterhead. Dated and signed by the company's field service representative. All returns must be authorized by AMS Scales and must be accompanied by a copy of the return material authorization (RMA) form provided by the AMS Scales customer service department. Return of the defective cartridge is required. Any sign of tampering with the cartridge by non- AMS Scales personnel will void this warranty. AMS Scales liability hereunder shall be limited to replacement or reimbursement as pro-vided above. This warranty is exclusive, and in lieu of all other warranties expressed or implied including warranties of merchantability and fitness for a particular purpose. Proof of purchase is required for all warranty processing.