Online Banking Customers. 1  Sign in to Online Banking. 2  In the Service Center, find the Online Banking Services section. 3  Select Order Checks from the menu. 4  Select the account and click continue to proceed to order.nline Banking Customers. 1  Sign in to Online Banking. 2  In the Service Center, find the Online Banking Services section. 3  Select Order Checks from the menu. 4  Select the account and click continue to proceed to order.