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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 (10 have been installed so far): $86.40 each

Thus, $3,364 spent so far on hardware.

Paper costs NOT included.

Usage Dec 2012 - Feb 2014

Ink Stick color

Use

6 Sticks per package

Cost per package

Total costs

Cyan

28

4.67

$69.65

$325.26

Magenta

24

4.00

$69.65

$278.60

Yellow

22

3.67

$69.65

$255.62

Black

76

12.67

$221.40

$2,805.14

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