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Express consumable costs ($12,344) to operate printer services offered free to Chem majors over 1.5 years. Paper costs NOT included.

Data and analysis

Page counts

Dates

Count of
months

Avg pages per months
(including summers)
Most uses is Jan/Feb. and Aug/Sept

At 1.53 cents/ page,
for just ink
(a consumable)

At  0.36 cents/ page,
for just maintenance kit
(another consumable)

Cost for both
consumables

300,000

May 2011 - Dec 2012

20 months

15,000 pages /month

$5,800

$1,080

$6,880

240,000

Dec 2012 - Feb 2014

15 months

16,000 pages/ month

$4,600

$864

$5,464

Total: 540,000

May 2011 - Feb 2014

35 months

15,430 pages/ month

$10,569

$1,944

$12,344

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

  • Amortizing cost of printer over 540K pages printed comes to 0.46 cents per page.

Maintenance kits: $1,944

  • 10 have been installed for the most recent 240,000 pages, at $86.40 each: $864
  • Thus estimate we 1.25 additional kits (~12.5 kits) for the first 300K pages printed: $1,080

Thus, $4,444 spent so far on hardware, including maintenance kits.

Paper costs NOT included.

Usage Dec 2012 - Feb 2014

Ink Stick color

Use

6 Sticks per package

Cost per package
(These are Michael Hint's costs;
Lars may pay more?)

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

 

 

 

Total ink costs:

$3,665

$3,665 for 240,000 pages =. $1.53 cents per page, average.

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