Printer Cost Per Page Mistakes: 8 Errors Offices Make

Most printer cost per page mistakes make a printer look cheaper than it will turn out to be. They are easy to make because spec sheets and sales quotes focus on a few attractive figures. Here are the eight errors we see most often, and how to avoid each one when you run a printer cost per page comparison.

1. Calculating from the starter cartridge

New printers often ship with starter cartridges that hold less toner or ink than retail ones. If you base your sums on the in-box cartridge, or on a bundle price, you will get the wrong answer. Always use the price and yield of the replacement cartridge you will actually buy.

2. Using yields that are not ISO-rated

Yields measured under ISO/IEC 19752 (mono toner), ISO/IEC 19798 (colour toner) or ISO/IEC 24711 (inkjet) use a common test, so they can be compared. A yield quoted only as “pages at 5% coverage” may have been measured differently. If one cartridge has an ISO yield and another does not, the comparison is not fair.

3. Forgetting drums, fusers and other parts

On many lasers the drum is separate from the toner, and fusers, transfer belts and rollers have rated lives too. Leaving them out can understate the cost per page. Add each part’s price divided by its rated life. Our toner costs guide lists the usual parts.

4. Leaving out paper

Paper can be a large share of the cost of a mono page. Include price per sheet and apply your duplex share: a two-page document printed duplex uses one sheet instead of two.

5. Averaging mono and colour together

A colour page uses four consumables and usually far more coverage, so it costs several times a mono page. Calculate them separately and weight by your real mix. If 10% of your pages are colour, that 10% may account for a much larger share of your consumable spend.

6. Ignoring your own coverage

The ISO test pages represent typical office documents. If yours have heavy logos, photos or large solid areas, you will get fewer pages per cartridge. Check the pages-per-cartridge figure on your current printer’s supplies page and adjust.

7. Overlooking contract minimums and escalators

In lease or managed print contracts, a click price can look low until you notice a monthly minimum volume. If you print less than the minimum, your effective cost per page is higher than the quoted rate. Annual price increases and different rates above a volume threshold also matter. See lease vs buy an office printer for the clauses to read.

8. Comparing cost per page without volume

Cost per page alone does not decide the purchase. A printer with a low cost per page but a high price only pays off if you print enough. Multiply by your monthly volume and the number of months, then add hardware and service to get total cost of ownership. Our duty cycle guide shows how to measure volume.

A quick self-check

Before you trust your numbers, confirm that you have:

• used replacement consumable prices from at least two suppliers;
• used ISO-rated yields for every cartridge;
• added drums, fusers and kits;
• added paper with your duplex share;
• calculated mono and colour separately;
• adjusted for your coverage if your documents are graphic-heavy;
• checked contract minimums, escalators and thresholds.

A worked correction

Suppose a quote claims a mono cost per page based only on toner: cartridge price divided by yield. Using illustrative figures, a cartridge at 90 rated for 6,000 pages gives 0.015 per page. Add a separate drum at 60 rated for 30,000 pages (0.002) and paper at 5 per 500-sheet ream (0.010), and the real figure is 0.027: nearly double the headline number. If your documents only reach 70% of the rated toner yield, the toner part rises to about 0.021 and the total to about 0.033. The numbers are made up, but the pattern is typical, which is why the full calculation matters.

Why it matters

These mistakes rarely make a small difference on one page, but they compound across thousands of pages a month and several years. Getting them right is the difference between a printer that fits your budget and one that quietly costs more every month. When you are ready to choose, use the office printer buying guide.

One more mistake: ignoring volume

A low cost per page only matters if the page count behind it is real. Offices often compare quotes using an estimated volume, then sign a contract with a minimum monthly volume above what they print. Measure first with the counter method in our office print audit, check whether A3 pages are charged as two clicks if you are quoted an A3 copier (see A3 vs A4 office printer), and put your measured figures into the cost reduction steps.

And a last one: comparing the wrong jobs

Cost per page is built for everyday documents on standard paper. It becomes misleading when it is used for jobs that an office printer is not designed for. A colour brochure on heavy coated paper, folded and trimmed by hand, costs far more than its toner and click charges suggest: add the special paper, the staff time, the test prints and misfeeds, and the wear on the device. Compare that full figure with a print shop quote before deciding; our guide to outsourcing printing vs in-house walks through the comparison.

The reverse mistake also happens. Offices send short runs of simple documents to a print shop because the quoted price per page looks low, then pay for delivery and wait days for something the office printer could produce in minutes. Treat cost per page as one input, alongside urgency, confidentiality and quality, not as the whole decision. When you set your office printing budget, keep in-house and outsourced print as separate lines so both stay visible.