Express ink costs ($10,500) to operate printer services offered free to Chem majors over 1.5 years.

Data and analysis

Page counts	Dates	Count of months	Avg pages per months (including summers) Most uses is Jan/Feb. and Aug/Sept	At 1.92 cents/ page, for just ink	At 3 cents/page Covers printer, warranty, maintenance kit, as well as ink
300,000	May 2011 - Dec 2012	20 months	15,000 pages /month	$5,800	n/a
240,000	Dec 2012 - Feb 2014	15 months	16,000 pages/ month	$4,600
Total: 540,000	May 2011 - Feb 2014	35 months	15,430 pages/ month	$10,569

Printer's initial cost, including 3 year warranty: $2,500.

Maintenance kit (one has been needed so far): $86.40

Paper costs NOT included.

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