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Tom's Guide > Forum > Computer Peripherals > Printers > [Solved] Technical laser jet question

[Solved] Technical laser jet question

Forum Computer Peripherals : Printers [Solved] Technical laser jet question

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Frizzo   02-15-2012 at 03:45:38 PM

i'm looking at this technical information and it says the secondary corona wire in a laser jet applies a positive charge to the paper as it passes through....i didn't think paper could carry a charge? wth?

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------------------------------ johnny carson, i know this man. he is violin man with slave?
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printerman   02-15-2012 at 04:33:46 PM
Best answer

Frizzo wrote :

i'm looking at this technical information and it says the secondary corona wire in a laser jet applies a positive charge to the paper as it passes through....i didn't think paper could carry a charge? wth?


its does, long enough to hold the toner on the paper till it gets to the fuser. but gives off a minute amount of ozone gas...thats why HP switched to PCR (a roller) in the paper path.
people got really uptight about ozone gas..

------------------------------ Roy Hanson, Technician
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Frizzo   02-15-2012 at 05:19:02 PM

sounds like you know what you're talking about, but i would really like to know how paper holds a charge? as i understood it, wood is completely inert in terms of conductance.

------------------------------ johnny carson, i know this man. he is violin man with slave?
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printerman   02-16-2012 at 12:52:08 AM

static! but I am not a physicist. its a charge the toner has...it has minute amount of oxides in the toner which is lays/attracted to the paper, because the toner is laying there.
Remove the toner, BEFORE it gets to the heating assy, toner will come off.
its only a milly second from the charge to the fuser. then its baked

thats sir, Is the lesson for the day..time for a brew

------------------------------ Roy Hanson, Technician
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Frizzo   02-16-2012 at 03:56:00 AM

ok i still want to know how paper holds a positive charge, but i'll give you best answer because you put the work in.

------------------------------ johnny carson, i know this man. he is violin man with slave?
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Frizzo   02-16-2012 at 03:56:09 AM

Best answer selected by Frizzo.

------------------------------ johnny carson, i know this man. he is violin man with slave?
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printerman   02-16-2012 at 05:27:14 PM

now that I re-read the question...once toner is laid on the paper, its the static charge from the corona wire, that holds the iron oxides in the toner.

------------------------------ Roy Hanson, Technician
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iam2thecrowe   03-01-2012 at 03:39:21 AM

a transfer roller/wire sits opposite to the drum/belt and as the paper passes over the transfer roller/wire the toner image from the drum/belt gets pulled onto the paper by the transfer roller. Then it goes through the fuser to be fused to the paper. If you google, "how a laser printer works" you should find some diagrams and things.

------------------------------ INTEL CORE 2 Q6600 @ 3.49GHz, CM Hyper TX3, ASUS P5N-D, 8GB DDR800 RAM, Powercolour HD6850, 650w Antec Trupower New PSU
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