Finding UPS for Laser Printer

Anonymous user · ‎2021-06-28

Typically it is not standard to plug a laser printer into a UPS however there may be a need to do so. Any suggestions on which type of an UPS to use for a laser printer with specs 110v-127v 50/60 Hz 6.5amps. runtime to be at 5mins?

Anonymous user · ‎2021-06-28

Laser printers are very difficult to accommodate and you'll need something reallly big.

The light bulb/heater don't just turn on and off like you do a light switch, but it is pulsed rapidly by a semiconductor switch and current rise is very rapid. UPSs are not designed to handle load with such a great magnitude of rate of change of current (which can jump from 0A to 20A in few miliseconds)

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Cap1_apc · ‎2021-06-28

The issue with a laser printer is the enormous inrush current they create when they print. This will overload many UPS's.

You would want to find out what the max amount of wattage the Laser Printer can draw - perhaps the manufacturer can tell you this info.

Based on the specs you provided, a SUA1500 may be able to do the job if you are certain that it won't draw more than 120v x 6.5 amps = 780watts. The SUA1500 can handle 980 watts but please please please keep in mind that your printer may exceed this during power on or printing.

Anonymous user · ‎2021-06-28

Laser printers are very difficult to accommodate and you'll need something reallly big.

The light bulb/heater don't just turn on and off like you do a light switch, but it is pulsed rapidly by a semiconductor switch and current rise is very rapid. UPSs are not designed to handle load with such a great magnitude of rate of change of current (which can jump from 0A to 20A in few miliseconds)