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.
For example, if the business above produced 500,000 units of its product that year, its unit variable cost is (155,000 / 500,000) or $0.31. 1  The unit variable cost is simply the variable cost per unit produced. 2  It is the extra cost incurred by producing each additional unit. This is because fixed costs are now being spread thinner across a larger production volume. 2  For example, if the business above spends $50,000 per year in rent, rent costs are allocated to each unit at $0.10 per unit.