grainy print page monochrome laser

Brother Hl-2040 laser printer
November 3, 2010 at 17:35:45
Specs: Windows XP, 1.795 GHz / 2039 MB
Brother HL-2040 monochrome laser printer...

The pages I print are coming out -- progressively with time -- with more and more grainy black background. Seems like toner is going on edges of page and body of page in sloppy way that is becoming worse with time.

Is this "drum" going bad? Something else? is there a way to clean it up?

Thanks much,
Serob48


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#1
November 3, 2010 at 18:00:23
Is the toner low? How many copies on the drum? Do you use a lot of different size paper?

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#2
November 4, 2010 at 15:52:16
Seem to have plenty of toner.

Do not know how exactly how many pages printed so far since purchase...maybe 1,000 max -- original drum. This is only 2nd toner cartridge I have installed into this printer.

Almost always printing on 8.5 * 11 inch standard white print paper.

Thanks much,
Serob48


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#3
November 4, 2010 at 20:46:41
The second cartridge should be at about 1500 copies. The drum 12000 copies. Have you cleaned the corona wires? Do you have high humidity or damp paper?

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#4
November 5, 2010 at 16:10:03
Here's what I've tried...

1. Cleaned corona wires carefully several times.
2. Live in Denver, CO...low humidity.

Update: I had a spare drum and replaced problem drum with it. STILL getting the bad print... COULD THIS MEAN THAT SOMETHING ELSE is wrong with printer, e.g., curcuit boards, other stuff?

[The spare drum came from an HL-2040 that some plastic guides for the paper take-up broke on. Print quality was fine up until time I salvaged the drum/toner cartridge and discarded the rest.]

Thanks much,
Serob48


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#5
November 5, 2010 at 17:46:00
The drum may have been damaged. Was toner or dust left on the drum while it was exposed to light? Or stored without the black bag?

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#6
November 5, 2010 at 18:01:21
Older drum -- also grainy print -- stored during low office light conditions into standard plastic department store bag, then stored in no-light drawer.

Could 2 drums be bad? The newer one that progressively printed more and more grainy backgrowund and toner all over page, AND the older stored one?

Could anything else you might have experience with cause all this?

Thanks much,
Serob48


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#7
November 6, 2010 at 13:08:33
To Wizard-fred...

By the way, thanks for all your follow up on this. You are a helpful and fine person.

Thanks much,
Serob48


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#8
November 24, 2010 at 08:39:08
To whomever might have an idea on this:

So, is the problem most likely 2 bad drums? No other possibilities to consider before I buy a new drum?

Thanks much,
Serob48


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