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my poor ups :(

V

vFX

n00b
Joined
Sep 28, 2013
Messages
55
yesterday I had one of my baddest ideas ever: I plugged a Samsung Laster Printer into a brand new APC Smart UPS :( (SMT750RMI2U, 500W)

I don't know how but I didn't know that "do not plug a laser printer into a UPS" is one of the first rules about UPS's..

Anyway, the display started blinking "overload" with a noise alarm as soon as I started the printer.
After 10 seconds I turned it off and everything returned normal.

Now the UPS is working well but I am concerned I had damaged something.

Is there a way to check if my stupidity did damaged something?


:(
 
The SmartUPS should probably have some sort of overload protection built in that will shut down the unit past a certain threshold.

I'd say turn it on, plug in a couple of cheap devices, observe for a while.

If working, nothing probably wrong. -- But since you said the unit is working, probably nothing wrong.
 
Turn it on, let it stay idle for 5 minutes.

Then enter the software management and select the ups selftest.

If everything is OK you cant trust your ups
 
I never turned it off.
the phrase "After 10 seconds I turned it off and everything returned normal" was referred to the printer
 
vFX said:
I never turned it off.
the phrase "After 10 seconds I turned it off and everything returned normal" was referred to the printer
Click to expand...

Well, so it probably shutdown the outlet that had the printer connected.

Everything is just fine then :p

And YES, you can connect your laser printer to your UPS, but first you have to mind the drain spike that heating the fuse will make. Generally, it is 7x the normal drain of the printer for some seconds.

So make sure that the printer can deliver the energy (both in the total capacity AND in the outlet).

:D
 
You don't have anything to worry about. It said overload because it detected one and was going to trigger it's own overload protection.

SmartUPS are made to last, something like that won't toast one unless it's defective from the start.
 
If you are concerned their should be a self test option on the UPS that you can use to test it. If it passes, should be good to go.
 
DouglasteR said:
Well, so it probably shutdown the outlet that had the printer connected.

Everything is just fine then :p

And YES, you can connect your laser printer to your UPS, but first you have to mind the drain spike that heating the fuse will make. Generally, it is 7x the normal drain of the printer for some seconds.

So make sure that the printer can deliver the energy (both in the total capacity AND in the outlet).

:D
Click to expand...

This is horrible advice. Don't plug a laser printer into a UPS. It's just a poor idea. It will always overload the UPS.
 
Jorona said:
This is horrible advice. Don't plug a laser printer into a UPS. It's just a poor idea. It will always overload the UPS.
Click to expand...

to be more specific... Don't plug a laser printer into a back-up powered outlet on a UPS. using a "Surge Only" outlet for a laser printer is acceptable. When the battery outlets are switched to battery power, the "Surge Only" outlets will be powered down. Power loss may result in having to clear half printed pages if power is lost while printing, but otherwise harmless.

I do have a laser printer plugged into a "Surge Only" outlet on the UPS that powers my home network, and never had an issue.
 
thank you guys for the answers.
I will try a manual "self test" but for now -seems- to be ok..
 
tdowning said:
to be more specific... Don't plug a laser printer into a back-up powered outlet on a UPS. using a "Surge Only" outlet for a laser printer is acceptable. When the battery outlets are switched to battery power, the "Surge Only" outlets will be powered down. Power loss may result in having to clear half printed pages if power is lost while printing, but otherwise harmless.

I do have a laser printer plugged into a "Surge Only" outlet on the UPS that powers my home network, and never had an issue.
Click to expand...

smart ups' dont have surge only plugs
 
So yes, to avoid any moar headache, DONT PLUG YOUR LASER PRINTER IN THE POOR UPS !

Its settled :D
 
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