ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Linear Power Supply Quits Under Load
by JoeTestingEngr. 10/18/18 08:47 PM
220/230/240V 60Hz Systems
by dsk. 10/17/18 01:25 PM
PLC/HMI Enclosure C2, D1
by ghost307. 10/16/18 03:31 PM
Tingle off the water spigot
by dsk. 10/15/18 02:36 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
1 registered members (gfretwell), 12 guests, and 31 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Printer probs #183642
01/17/09 05:13 PM
01/17/09 05:13 PM
B
bill woods  Offline OP
Member
Joined: Nov 2001
Posts: 45
Scene: 700 sq ft apartment. Two general lighting and convenience receptacle circuits.
Problem: When a laser printer is in use the lights flicker.
What causes this? Is there an easy fix? This is a brand new printer. Several have already been returned to the store where purchased. All returned printers have the same problem. Interesting. Any ideas?

Study Guides for VDV / Structured Cabling Installers

Voice, Data, Video, (VDV) Fiber Optics, Communications, Low Voltage,
Fire Alarm, Electronic Security Systems Installations & Related

NTC Low Voltage Training & NICET Exam Study Guides
Low Voltage Training & NICET Exam Study Guides

Re: Printer probs [Re: bill woods] #183655
01/17/09 11:13 PM
01/17/09 11:13 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 7,036
Brick, NJ USA
Do you mean the lights are 'dimming'??

Did you check the amperage of the printer?

Sounds to me like the receptacle outlet that the printer is plugged into, and the lights are on the same circuit. Try a different circuit.

Also, there may be a loose connection somewhere; at the panel, main, meter, or POCO connection.



John
Re: Printer probs [Re: HotLine1] #183657
01/18/09 12:26 AM
01/18/09 12:26 AM
noderaser  Offline
Member
Joined: Mar 2007
Posts: 404
Portland, Oregon, United State...
There's nothing wrong with the printer, they just draw a lot of current. I have a Xerox Phaser 6100 color laser that's rated at 10 A. The flickering you experience is probably caused by the fuser lamp turning on, to heat up the fuser rollers. It takes a lot of heat to melt the toner into the grain of the paper. Of course, there is also HVDC in there which makes the toner stick to the paper in the desired pattern before it goes through the fuser.

Re: Printer probs [Re: noderaser] #183679
01/19/09 03:10 AM
01/19/09 03:10 AM
H
hbiss  Offline
Member
Joined: Dec 2003
Posts: 886
Hawthorne, NY USA
Yup, absolutely normal, noderaser is spot on. You can try a dedicated 20A circuit but my experience is that sometimes you will still notice some flickering even on other circuits.

-Hal

Re: Printer probs [Re: hbiss] #183717
01/20/09 01:52 PM
01/20/09 01:52 PM
Z
Zapped  Offline
Member
Joined: Oct 2002
Posts: 482
Huntington Beach, CA, USA
I'm with HotLine - think maybe your panel is in need of a minor service. This would include checking breaker seating, cleaning contacts, and snugging up all the lugs - including the mains/feeders.

Even with the high draw of the printer, flickering or dimming lights is usually a sign of limited current availability due to higher-than-normal resistance somewhere in the circuit(s).

Good Luck!


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
watersparkfalls
watersparkfalls
Washington...Not DC
Posts: 222
Joined: March 2005
Show All Member Profiles 
Top Posters(30 Days)
sparky 11
Popular Topics(Views)
250,523 Are you busy
188,083 Re: Forum
177,718 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.017s Queries: 15 (0.004s) Memory: 0.9730 MB (Peak: 1.1155 MB) Zlib enabled. Server Time: 2018-10-21 06:01:56 UTC