Hi i have started industrial printing solutions and have been a domino printer tech for over 10 years. Recently i have refurbished several printers and have been thinking of starting a printer exchange program so customers would not have to wait for their unit to be rebuilt. I,m not sure how to charge a core charge that will be credited depending on the condition of the unit without the overall cost being to high say a 1000.00 core and 50% credit if it runs or to just up the unit cost to cover the printers i get as exchange that are junk. Any suggestions would be greatly appreciated. I know i have trouble with my lease printers that are returned those who are not leasing to own often send them back in horrible shape.