MFP power consumption in kW

Power consumption in the consumer sense is calculated in kilowatts over a certain period of time. Thus, kilowatts per hour become the basic unit of measurement for the power consumption of a multifunction device.

Power consumption of MFPs of different models in kW

So, how many thousands of watts your MFP consumes in one hour is the value of the printer's power consumption. However, before you start calculating, you must understand that the power consumption of your device depends on the state in which it is located.

Most MFPs have on, standby, and sleep modes. On mode is when your printer is actively printing, the "standby" state is when the MFP is waiting to print, and the "sleep" state is when the printer is tired of waiting for your print command and is almost in an off state.

Obviously, the “on” mode is the most energy-intensive, and the “sleep” mode is the least. This rule applies to all MFP models. Their power value may be different.

How to find out what the power is in kW

The best way to learn how to calculate the power consumption of an MFP is with an example. To do this, let's assume that you have an HP LaserJet 4250 printer.

This printer has a power rating of 5 amps for 230 volt models, i.e. for Australian models. Now the same link shows that the HP LaserJet 4250 print power is 675 watts, which is 0.675 kilowatts.

Whether you want to consume 1.15 kilowatts or 0.675 kilowatts is up to you.

This example is for illustrative purposes only and is not a certified all-in-one power consumption rating for the HP LaserJet 4250.

The HP LaserJet 4250 printer's standby power consumption is 20 W or 0.02 kW, while the standby power consumption is 18 W or 0.018 kW. The HP LaserJet 4250 is rated at 45 pages per minute for letter-size sheets, which is what we'll take. And it assumes your monthly print volume is 100,000 pages. This is where the calculation comes in.

The power consumption of your multifunction device is:

5 amps x 230 volts = 1150 watts = 1.15 kilowatts

Print volume:

45 pages x 60 minutes = 2700

Your printer prints:

100,000 pages per month / 2700 per hour = ~37 hours.

There are a few other situations to consider. First, the printer waits about 75% of the time it doesn't print. Secondly, the MFP is in a sleep state for 25 percent of the time when it is not printing.

This means your printer is in standby mode for:

720 hours (per month) - 37 hours of printing x 75% = 512.25 hours

This also means that your printer is sleeping for:

720 hours (per month) - 37 printing hours x 25% = 170.75 hours

You are very close to the full and final power consumption of the MFP. It is necessary to multiply the hours worked with the rated power for each mode.

Printing power consumption:

37 hours x 1.15 kW = 42.55 kW

512.25 hours x 0.02 kW = 10.24 kW

170.75 hours x 0.018 kW = 3.07 kW

Now you can simply add up these three values ​​to get your printer's total power consumption at work or at home. In this case, the total cost is 55.86 kilowatts. If you want to take it one step further, you can multiply this total cost by any costs you pay in your area. This will give you the amount of money you pay in your energy bills to keep your printer running.