Question about HP LaserJet 2840 All-In-One Printer

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Imaging drum on hp 2840 says to order a new one, but it's not that old and the number of copies printed is nowhere near 5,000 color or 20,000 black. Did I miss a step when putting the new drum in?

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Hi there

Did you do a reset in the Menu or on the printer when you replaced the new drum.
All best Pineworks

Posted on Apr 26, 2010

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MY HP LaserJet 2840 has a brand new Toner cartridge. Now it won't print at all and we are getting a "OPC at end of life" prompt. What does this mean?


Imaging drum reach 20,000 (black only) or 5,000 (color), replace the image drum.

Supplies life
The life of the imaging drum depends on the number of black-only or color pages that print jobs
require. Imaging-drum life is also affected each time the device calibrates because calibrating causes the imaging drum to rotate. Imaging-drum life is measured in terms of number of rotations rather than number of pages printed.
The type and length of print jobs also affects drum life. A series of short print jobs uses more drum
life than an equivalent number of pages printed in a single large job. To extend drum life, print
multiple copies of a print job at one time rather than sending the same job to the device multiple times.
The life of a print cartridge depends on the amount of toner that print jobs require. When printing text at 5% coverage, black print cartridges last an average of 5,000 pages and cyan, magenta, and
yellow print cartridges last an average of 2,000 pages. High-capacity cyan, magenta, and yellow print cartridges last an average of 4,000 pages. (A typical business letter has 5% coverage.)

Aug 18, 2011 | HP LaserJet 2840 Printer

1 Answer

We have an HP Color Laserjet 2840 printer in our office. We were low on our black ink drum, bought a new drum and installed it. Copies are coming out perfectly but the "replace black...


The 2840 is a slightly different sort of machine when it comes to supplies. There is a main imaging drum unit which works for all four colors, and then there of course are the 4 colors. If the unit was asking for a drum unit then you should have instaled a Q3964A. It is entirely possible that your drum unit and black cartridge both expired at the same time, in which case, you need a black toner cartridge now.

Jul 28, 2011 | HP LaserJet 2840 All-In-One Printer

1 Answer

Hp 2840 flashing order supplies now- what does that mean


With this particular printer when it says to order supplies that means more than one of the toner cartridges and or the imaging drum are getting low. This warning by default shows at 20% left. Once they get empty you will not be able to print. If you have spares on hand then don't worry about it, when it stops printing change the cartridges.

Feb 22, 2011 | HP LaserJet 2840 Printer

2 Answers

HP Color LaserJet 2840 keeps showing 50.2 Fuser error message. Nothing helps correct problem. What to do? Have tried repeatedly turning printer off, waiting several seconds and turning on again. Each time...


The fuser is the heating unit near the paper exit, and that error means the lamp is burned out, the overtemp sensor is out, or the thermistor in the fuser is bad. About all you can do is replace the fuser. www.precisionroller.com will have a new fuser for you.

Jan 12, 2010 | HP LaserJet 2840 All-In-One Printer

2 Answers

HP Laserjet 2840 asked for drum replacment afther only 5300 pages but should make 20000. Prits where still perfect but now it refuses to print. Any solutions how to keep using the drum?


Check online for refill instructions and where to buy the chip to replace on the drum, most of the drums today have little chips to replace that tell the printer when they are used up, even when there's still life in them.

Dec 24, 2009 | HP LaserJet 2840 Printer

1 Answer

HP 2840- vertical black streaks on paper edges when copying using black only- copies fine in color


The Drum unit is worn or defective. try another drum unit. this should take care of your problem.If it's new then get your money back and replace it.

Dec 10, 2009 | HP LaserJet 2840 Printer

1 Answer

Replaced black toner..now printer won't print any


In this case, actually it is not the Black toner that got depleted. Here the message being displayed indicate that one of the color Toner supply need to be replaced as it got depleted and currently the printer is printing in Black and white using the Black toner cartridge.

in this case, to troubleshoot these issues please try performing the following and check for the results.

* 1. Check for the level of the toner cartridges:

a) Check from the HP Toolbox application. Here are the steps to be performed from your PC:

* Access the Toolbox software.
* Select the Status tab.
* Select the Device status option.

Here you can check for the supplies status in terms of the % remaining for each toner cartridges.

b) By checking the supplies status from the printer control panel display.

On the printer display when printer is in Ready mode the supplies status can be checked from the supplies level indicator. Each toner cartridge and the Imaging drum level will be indicated by a bar which varies according to the level of the supplies present.

c) Print the supplies status page from the printer.

* On the printer control panel menu, press Menu .
* Use the (Right Arrow) button to select Reports, and then press Enter .
* Use the (Right Arrow) button to select Supplies Status, and then press Enter .

If any of the color toner cartridges and the Imaging drum have a low supply level replace them with genuine HP print cartridges.

The part numbers of the consumables are as follows:

* Black print cartridge - Q3960A
* Cyan print cartridge - Q3971A
* Magenta print cartridge - Q3973A
* Yellow print cartridge - Q3972A
* Imaging Drum - Q3964A

Sep 23, 2009 | HP LaserJet 2840 Printer

2 Answers

HP Color Laserjet 2840 now makes ear-splitting whine every time


Did the noise start right after you replaced a toner? If so it must be a bad toner which is causing the gears to grind. If this noise happened out of the blue then it might be a bad fuser drive gear which is the gears that connect the fuser to the machine.

Jun 25, 2009 | HP LaserJet 2840 All-In-One Printer

2 Answers

HP 2840 Prints Blank Pages


Black is used on all prints. Did you pull the tape on the new cartridge?

Jan 13, 2009 | HP LaserJet 2840 All-In-One Printer

1 Answer

Replace Cathridge


The front panel tells you witch toner cartridge should you replace. If a supply memory error ocures then the cartridge should be replaced or exchanged with a new one. The imaging drum unit is also consumable. for "Joe 50" - there are 4 toner cartridges in the printer.

Dec 28, 2007 | HP LaserJet 2840 Printer

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