There are many different types of idiopathic headache with the pain in the back of the head, including epicrania fugax, nummular headache, cluster headache, and hemicrania continua. There is also a condition termed new daily persistent headache, which also belongs to this type and can cause a headache for several months.
Calculate Use: Multiply the number of pages per week (the average in a production environment is 100) by the number of weeks in a six-month period (26). A good estimate is that you will print 2,600 pages each six months. Now, take 2,600 and divide it by the number of pages the ink cartridge will print (225).
Mel9484 Nov 6, 2012 at 7:44 UTC. To calculate cost per black and white page, you take the price of the black cartridge and divide it by the black cartridgeâs page yield. To print a color page, the printer typically uses all its cartridges, including the black one. So to calculate cost per page for each of the color cartridges, add them all together, then combine that number with the black and white cost per page to get the final cost per color page. E.g. if your black ink cartridge costs $30 and yields 500 printed pages, its cost per page is $0.06.