ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

ECN Shout Chat
Top Posters(30 Days)
Admin 19
Recent Posts
fuse rejectors
by NORCAL. 03/29/17 01:44 AM
Old decora style outlets
by NORCAL. 03/29/17 01:41 AM
NFPA stuff
by gfretwell. 03/28/17 08:08 PM
Anyone hiring inspectors?
by HotLine1. 03/27/17 08:03 AM
ESA Arc flash course
by TheShockDoctors. 03/24/17 10:15 AM
New in the Gallery:
SE cable question
Popular Topics(Views)
231,764 Are you busy
166,658 Re: Forum
160,806 Need opinion
Who's Online Now
1 registered members (HotLine1), 65 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#183642 - 01/17/09 05:13 PM Printer probs  
bill woods  Offline
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


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


Member
Joined: Apr 2002
Posts: 6,803
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

#183657 - 01/18/09 12:26 AM Re: Printer probs [Re: HotLine1]  
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.


#183679 - 01/19/09 03:10 AM Re: Printer probs [Re: noderaser]  
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


#183717 - 01/20/09 01:52 PM Re: Printer probs [Re: hbiss]  
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!



Member Spotlight
cookcc
cookcc
California ,Long Beach
Posts: 28
Joined: May 2007
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.013s Queries: 15 (0.003s) Memory: 0.7709 MB (Peak: 0.9133 MB) Zlib enabled. Server Time: 2017-03-29 21:02:50 UTC