Question about Brother MFC-8840D All-In-One Laser Printer
I agree with first thought circuit overload.
I dont think it is the printer, I think it is your power supply in house. Just moving it to another socket does not change it from what might already be a circuit with a lot of load already.
You are experenceing surges that are normal operation ie at power on quatz lamp turns on reaching temp of 180 deg cel, then idles, if print command is issued back on comes the lamp drawing power.
Posted on Dec 21, 2007
Have the same problem of Computer UPS unit triping to battery and back to AC with a Samsung laser printer plugged into the same circuit as UPS, ( printer on separate surge / no-surge, same issue ). (This is a quality APC UPS). After reading this tale of woe above, I ran an extension cord to a different ( lightly loaded ) circuit, and success, the UPS does not momentarily go to battery mode, when the printer starts... or starts printing.
I provide this as some confirmation that the power surge from the printer doing it's stuff is strong enough to trip up an APC UPS if on the same house wiring circuit.
Posted on Sep 17, 2008
I was having the same problem with a Brother HL-5280DW, sent print job and restarted the computer. If removed the USB port and plugged the printer using the network port and same thing happened. The printer was in the UPS but it was on the Surge only side, not connected to the battery side. I thought that whatever was plugged in to the battery side was "protected", but obviously I was wrong. I then connected the printer to a different outlet [different circuit I think] and could print no problem.
Brother should go back to build sewing machines only, and we computer users should stick to HP. I wish I could thow this printer away, but it is brand new.
Good luck to all.
Posted on Feb 14, 2008
Light flicker is due to inrush current when the fuser turns on. The fusers get really hot - like 200 deg C. This is common and occurs with any laser printer. Best solution is to put the printer on its own circuit - not the same one as your computer and such. Given the conversations here I suspect these are all home offices - one room in home - only has one circuit - Computer, Monitor, Printer, Lights all on same breaker... Not much you can do except add a circuit to your office.
Posted on Feb 02, 2008
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Posted on Jan 02, 2017
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