When trying to scan, copy, or fax, one of the following error messages displays on the printer control panel: ' 1 Scanner failure, power off and on'. ' 2 Scanner System Failure'. ' 3 Scanner failed, cannot make copies or fax 4  '. 'Scanner failure. Unable to scan, copy, or send a fax'. ' Scanner failure, cycle power'.
Income Elasticity of Demand and types of goods. Income elasticity of demand measures the responsiveness of demand to a change in income. 1  Inferior Good: An inferior good means an increase in income causes a fall in demand.2  It has a negative YED. 3  An example, of an inferior good is Tesco value bread.ncome elasticity of demand measures the responsiveness of demand to a change in income. 1  Inferior Good: An inferior good means an increase in income causes a fall in demand. 2  Normal Good. 3  Luxury Good.
Summary. 1. Positive economics deals with what is while normative economics deals with what should be. 2. Positive economics deals with facts while normative economics deals with opinions on what a desirable economy should be.3. Positive economics is also called descriptive economics while normative economics is called policy economics.ummary. 1. Positive economics deals with what is while normative economics deals with what should be. 2. Positive economics deals with facts while normative economics deals with opinions on what a desirable economy should be.