I have hp laserjet 2840 i replaced imaging drum and black cartrige now my printer says incorrect yellow and i cant get it go rotate or print?

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.)

You will have problems if the cartridges aren't HP brand. Try replacing them with HP brand cartridges.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

Hi there

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

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

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.

Turn off the printer and open the cover and manually rotate the assembly for the toner.

HP Color LaserJet 2820 and 2840 AiO Series Products - How to Replace the Imaging Drum Replace the imaging drum

1. Push the scanner-release button to open the scanner assembly. Figure 1: Example of scanner release button location
2. Open the top cover. Figure 2: Example of top cover being opened
3. Grasp the imaging drum handle, and then rotate the drum until the handle is at the top.
   NOTE: 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
4. Lift the imaging drum straight up to remove it from the device. Figure 4: Example of imaging drum removal
5. Remove the new imaging drum from its packaging.
6. Place the imaging drum on a firm surface, and then pull the orange rings to remove the shipping pins. Figure 5: Example of shipping pin locations
7. 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
8. Remove the orange cover from the imaging drum. Figure 7: Example of orange cover location CAUTION: 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.
9. Align the arrows on the side of the imaging drum with the arrows inside the printer. Figure 8: Example of arrow location
10. Lower the imaging drum into the printer, and then press it firmly into place. Figure 9: Example of imaging drum installation
11. Close the top cover and the scanner assembly.

Did you remove the sealing tape?

5. Remove the new print cartridge from its packaging, remove the orange cover from the print cartridge, and then pull the orange tab straight out to remove the sealing tape.

6. Squeeze the blue release levers on the print cartridge, holding it with the roller facing you. Lower the cartridge straight down into the carousel until it is firmly in place.

7. If you need to replace another cartridge, close the top cover and the scanner assembly, press ROTATE CAROUSEL, and then repeat steps 4 through 6.

http://www.hp.com/ctg/Manual/c00292207.pdf

Other ideas

https://www.google.com/search?q=Hp+laserjet+2840-yellow+cartridge+flashing

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The problem is that the revolving drum doesn't contact the OPC drum proberly. You have to open the left side off the machine and replace the little white gear on the shaft that drive revolving drum. The gear has "jumped"one step and the revolving drum isn't parallell to the OPC drum. I fixed my 2840 last night it takes some time but now it works perfect.

There is a gray button right of the LCD display that has a black arrow circling clockwise and four color dots (magenta/black/cyan/yellow). Push it until you see the "Rotating to Yellow" in the LCD display, then open up the top of the printer by pushing the big gray latch next to the picture card reader at the right front of the printer. You now have access to the cartridge. pull it out and examine it. If it is a new cartridge, check to see if you pulled the plastic dam strip out (which keeps the toner in place in shipment etc).