14 Microline 320/321 Turbo|Parts IdentificationThe parts identified here are parts of the unit that you will useduring normal operation.For accessories (consumables, options, replacement parts, anddocumentation), refer to “Accessories.”Printer Serial NumberThe serial number of your machine is on a label on the backof your machine.The label says “S/N.”An example serial number is: 401A0154693.! You will need your printer serial number if yourmachine requires servicing.A written receipt for the product, showing the date ofpurchase, dealer’s name, and both the model and serialnumbers of the product must accompany any request orclaim for work to be performed under LimitedWarranty.