Tip & How-To about Kitchen Appliances - Others

Why Light Bulbs Burn Out So Quickly

The bulb package should have an average life expectancy printed on it. The typical light bulb is good for roughly 900 hours. At 10 hours a day that's three months. At 24 hours a day it's a little more than a month. If you have 25 bulbs in your house burning an average of three hours each day, a bulb will burn out every twelve days, on average. If you compute the average life of your bulbs and discover it's clearly less than the manufacturer's rated life, then you may have: 1-You may have over-voltage in your house. Occasionally this causes more serious problems. You can get a cheap multimeter at Radio Shack. If the voltage is 125V or higher, talk to the power company about it. 7 or 8 extra volts on a 120V line will cut the bulb life expectancy in half. If it's a slight over-voltage, you can buy special 125V or 130V bulbs, though sometimes they're hard to find.
2-Too high a wattage bulb in too small an enclosed fixture (such as a globe), the heat can't get out--the bulb burns too hot, leading to short bulb life.
3-Recessed lighting fixtures often get covered by attic insulation. This blocks the intended ventilation method--heat can build up around the bulb, causing short bulb life.
4-A vibration problem. Such as, bulbs under a heavily used stairway, on or near an out of balance bathroom or ceiling fan, or near a door that gets slammed, or kids upstairs jumping, etc. You can buy special shock resistant, also called "rough service" bulbs, for this situation, or try one of the new compact screw-in fluorescent bulbs.
Flickering. Intermittent electrical contact can cause flickering. It's like turning the light on-and-off constantly, and will reduce bulb life. It can be caused by a bad light socket, or a poor electrical connection somewhere in the wires leading to the light (most likely right at the fixture). Flickering can cause the bad connection to get hot and possibly start a fire. If you don't locate the cause of the flickering and it affects all or many lights, you could have a bad neutral connection -- a dangerous situation. Another indication of a neutral problem; as larger appliances (washing machines/dish washers) cycle, lights will get quite noticeably brighter or dimmer (minor changes in intensity are normal). If you suspect this problem have either the electric company or an electrician check it out.

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What is the life of a Xerox 6505 toner cartridge


The life of a toner cartridge is governed by how much printing it does.
As an example: the average full toner cartridge was expect to yeald approximately 10.000, A3 prints of approxamatly 5% coverage.
That equates to your average business letter :=
Dear Sir, blah, blah, blah ... Yours sincerely.
If you want to print construction plans and black and white drawings expect to get less prints than you expected.
On average they don't do too badly, but if you want to print advertising flyers expect less if there in full colour with bleed.
If you print 4 colour black then don't expect not to use the C,M & Y that also gets used up at a similar rate.
Good luck.

Jun 09, 2014 | Xerox Phaser 6128MFP AllInOne Laser...

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The image is very dim, even on maximum brightness. We are considering replacing the bulb, but bulbs for this projector are very expensive and we suspect that since there is some image, the bulb is not the problem. More likely a power supply or circuit board problem. Can dimness be caused by a bad bulb?


Yes, as bulbs age they will begin losing brightness. Most projectors have a bulb life hour clock, that measures the number of hours a bulb has been used. Usually you can pull that up within the menu of the projector. Also that particular model has what is called "Eco-Mode" and when engaged dims the bulb by 25% to cut down on power consumption.

Typical life for a lamp in that projector is:

3000 hours on Normal mode
6000 hours on Eco mode

You can expect a brightness loss of 50% when you are approaching end of a lamps life.

Mar 07, 2011 | Hitachi Cpx2510 Projector Cpx2510 Xga...

1 Answer

Light bulbs on outside lamp keep burning out prematurely.


this is a tough one to solve.... outdoors is a harsh environment and bulbs often don't last long. Several things lead to premature failure. One is the fixture is getting too hot , use lower wattage bulb. Two - do the math if the bulb is on 8 -10 hours a nite..... doesn't take many days to kill it. not sure about those average hour life ratings. try using those flourescent bulbs those last a long time and use less juice.

Nov 20, 2009 | Sylvania Electrical Supplies

2 Answers

okidata c3200 - "needs new drums" message


Check your page count, drum life on a C3200 is roughly 15000 pages. This information can be found on the information menu map.

Information Menu ecblank.gif ecblank.gif dot.gif ecblank.gif Menu Item Default Setting PRINT MENU MAP EXECUTE Prints the MenuMap (menu listing) with current settings shown. Information about your printer is also
shown at the top of each MenuMap page.


Life Expectancy ecblank.gif ecblank.gif dot.gif ecblank.gifToner Cartridge
Life expectancy approximately 1,500 pages, assuming about 5% coverage, which means that 5% of the addressable dots in an image are printed with this color of toner. See Toner Cartridge..

Image Drum
Life expectancy approximately 15,000 pages, assuming an average of 3 pages per print job. If the average print job is longer than this, the image drums could last longer, but if the average print job is shorter, then image drums will be used more quickly. See Image Drum.

Transfer Belt
Life expectancy about 50,000 letter-size pages. See Transfer Belt.

Fuser
Life expectancy about 45,000 letter-size pages. See Fuser.

Feb 11, 2008 | OKI C3200n Led Printer

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