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:
The UPS is plugging directly into the wall socket of a 15Amp circuit rarely used by anything except at this wall socket. Into the UPS are plugged cords for devices that are supported by and need to be on battery backup. Supported devices do not include laser printers.
The printer was plugged into a surge suppressing power strip plugged into the same wall socket. It was this configuration causing the UPS to squawk when the printer was powered up or awakened for a print job. I moved the printer's power cord directly to the wall socket, but the UPS squawking continues.
I'd advise putting it on a separate dedicated surge protector power bar. I can't see a printer needing to be on the UPS. It might take out the UPS and take the computer/storage down!
I've never plugged a laser printer into a UPS under this roof, probably never anywhere. IIRC, I read the installation instructions on delivery of a HP LaserJet in 1984, long enough ago to remember.
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.
You are overlooking something! It would be wise to hire an electrician and explain the situation to him, specifically mentioning these wall outlets. It is very possible that there is something not right in the wiring of the outlets, or some junction box along the wiring path in the house. You might very well be saving yourself and your house from a fire! I had something similar (but worse) in my house, which I found not long after I bought it. One outlet, into which I plugged an electric drill simply would not support the drill. I hired an electrician, who found a poorly made connection in the attic. (Local rules require the electric distribution in a house to be thru the attic, not thru the cellar.) I then had him check the rest of the house, and he found a number of other problems, among which was hot and neutral reversed in some outlets. I am rather sensitive to electrical problems, since a) in about 1965, my best friend was electrocuted in his home due to either a defective hi-fi system component, or a defective ground in the house wiring--I never found out for sure which it was, and three-wire house outlets were unknown in those days-- and b) I have spent most of my working life as an engineer, probably more aware of electricity in general than the average person. UL is not just an icon on a piece of hardware to me! --doug -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org