On 06/14/2015 04:05 PM, Felix Miata wrote:
Anton Aylward composed on 2015-06-14 10:47 (UTC-0400):
Felix Miata wrote:
I'm not sure whether the 5470 is actually working as it should. Each use causes the 900VA UPS plugged into the same 15A wall receptacle as the printer to squawk when the printer starts up.
Yes it will do that. My HL5170Dn does that!
Please do not connect it though your UPS. It puts a strain on the surge protection circuitry.
You seem to have misunderstood what I wrote:
:-/ My bad. I'd still offer "Please do not connect it though your UPS" as good advice and you seem to agree.
The printer was plugged into a surge suppressing power strip plugged into the same wall socket
......
I'm guessing what's probably going on here is the UPS is the problem. It's old, having been subjected to countless attacks here in the lightning capital of North America, yet its battery is relatively young. Either it's over-sensitive to voltage fluctuation from laser power-up, or the 5470 is drawing excessively, possibly explaining the big recent price drop for the model, which is at least one step above the bottom of Brother's laser printer line.
My guess is slightly different. Yes a sudden power draw might, just might, cause a voltage drop. It depends on how good your feeder is. What is more likely is that the printer is cause sudden shift in the phase for a moment and that is upsetting the sensors of the UPS. A local restaurant bought, without realising what it was, a "power saver". Yes it reduced their power bills. What it in fact was turned out to be a honking great capacitor that pulled the phase of their refrigerator compressor motors back. They were extolling this and salesman there was under the impression that this would work anywhere for anybody. He became angry with me when I explained some basic alternating current electrical principles to him. Late model refrigerators come with capacitors built in :-) As I say, my Brother, when in the same 2-outlet wall socket, paralleling my UPS as your describe, caused problems, sometimes even blowing the fuse. I don't over-rate my fusing. So I have it on a completely separate circuit, it may be my imagination but sometimes I think it dims the light when it starts ... or maybe that's the starship warp drive engaging ... -- A: Yes. > Q: Are you sure? >> A: Because it reverses the logical flow of conversation. >>> Q: Why is top posting frowned upon? -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org