Question about HP LaserJet 2840 Printer

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JUST CHANGED TONER...GET RESPONSE TO REPLACE SUPPLYS

Hi,
I jsut changed the toner(s) and drum in our HP laser Jet 2840. After doing this the LEd display said I need to replace supplys with a question mark at each toner color...all cartrages are bran new. Please advise.

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  • rlisa99 Jan 26, 2009

    This didnt work. Any other suggestions????

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While holding down the Check-Mark key turn the printer off then back on.

Posted on Jan 23, 2009

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My hp 2840 all in one laser jet printer squeaks when it is printing. How do I lubricate my 2840 HP laser jet printer?


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I have an HP color laserjet 2840 and just replace the drum not long ago, maybe back in the spring, and changed all the colour cartridges in the summer, now it's saying to replace the drum again, the...


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How to change the drum in the HP Printer 2840


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insert the new drum if any probelm logon www.compudesk.in and click live chat and send off line msg .

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Hp laser jet1100 prints white lines


Hi ejazmusavi:
Try this.
Toner/developing cylinder 37.7 mm (1.48 inches)
Toner/primary charging roller 37.7 mm (1.48 inches)
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Transfer roller 45.2 mm (1.78 inches)
Pressure roller 62.8 mm (2.47 inches)
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Feed roller 55.1 mm (2.17 inches)

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Hello, these printers tend to be finicky.

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Buy only HP Toner and Drum cartridges for this printer. Do not try to refill toner cartridges, and do not reset drum. You will only end up destroying your printer in the process.

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