Re: HP 2840 AIO gives replace drum message -installed 3...
Are you sure that all transport tape is removed from the new drum? Check the drum closely and see if there is anything that diff from the old one. If it doesn't work correct, sometimes it's stucked, try replace it at your reseller.
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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.
Drum message is reset by a chip on the drum when you install a new drum. You can try pressing the cancel button when the message appears, however HP warns that damage may occur if you try to print with expired supplies.
The HP Color Laserjet 2840 Is a Very Good Reliable Printer. I'm curious if you are buying American made components or cheap components from some thrid world country sold at ahuge retailer. They really should stand behind their laser drums, but if they don't then shop over at www.officeinks.com or www.wowsuperdeal.com and Purchase American Made Toner Cartridges and Laser Drums. Office Inks has a 1 year satisfaction and quality guarantee and free return shipping if their ink, toner, drums, ribbons etc, don't make you happy. Only Ships USA Though.
there is something wrong with your drum.. try to replace a new chip for the drum make sure that the chip is working.... if that did not work. see if there is any damage in your drum.. If not replace a new drum..
HP Color LaserJet 2820 and 2840 AiO Series Products - How to Replace the Imaging Drum
Replace the imaging drum
Push the scanner-release button to open the scanner assembly.
Figure 1: Example of scanner release button location
Open the top cover.
Figure 2: Example of top cover being opened
Grasp the imaging drum handle, and then rotate the drum until the handle is at the top.
The drum may be a snug fit. If needed, gently apply some force while rotating and removing the drum.
Figure 3: Example of imaging drum rotation
Lift the imaging drum straight up to remove it from the device.
Figure 4: Example of imaging drum removal
Remove the new imaging drum from its packaging.
Place the imaging drum on a firm surface, and then pull the orange rings to remove the
Figure 5: Example of shipping pin locations
Remove the orange shipping lock on each end of the imaging drum, and remove the two
orange shipping spacers.
Figure 6: Example of shipping lock and spacer locations
Remove the orange cover from the imaging drum.
Figure 7: Example of orange cover location
Do not touch the surface of the roller or expose the roller to light for an extended period of
time. Doing so could cause print-quality issues.
Align the arrows on the side of the imaging drum with the arrows inside the printer.
Figure 8: Example of arrow location
Lower the imaging drum into the printer, and then press it firmly into place.
Figure 9: Example of imaging drum installation