Canon has user-replaceable printhead. Users can replace the printhead in about 10 minutes. Epson requires a technician to schedule an onsite visit and costs about $ 1,200. The Epson head is very durable - but won't last forever. Canon thermal head tends not to clog. Epson printer heads tends TO clog. Canon heads will self-clean if it does clog. Epson's heads do not. Canon's thermal technology (heat) tends to keep the nozzles cleaner than the piezo-electric design Epson uses.
Variable Cost per Unit. If the number of units produced in the period is 1,000 then the variable cost per unit is calculated as follows. Variable cost/unit = Variable cost / Number of units Variable cost/unit = 92,600 / 1,000 Variable cost/unit = 92.60.
Product costs are also called variable costs. It refers to that cost which varies in direct proportion to the volume of output. The cost per unit of product cost remains unchanged as production increases or decreases but total cost increases. So such type of costs are called product costs. For example; cost of direct material, direct labor and direct expenses. Image Source:advancedmp.com/wp-content/uploads/2013/11/cost_roller.jpg. Period cost is the fixed cost. It refers to that cost which remains unchanged by change in volume of out put. Fixed cost per unit decreases as production increases and increases as production declines.