I get this message when I install a non HP toner and drum. "Non HP supply installed" and then I cant print anything

If you have any problem with Dell computers, the printer then call us at Asus Customer Service Number 1833-284-2444.
Visit:- https://www.contactxpert.com/asus-support.html

if you update drivers or used windows 8, HP make drivers check if cartridges are original, you have limit used of the printer, if you install original cartridges resolve you problem.

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The low ink could definitely be the problem thats prompting the error. To begin troubleshooting print the supply status page and confirm the state of the various supplies. Follow the steps below:
Supplies Status page The Supplies Status page lists the remaining life of the HP print cartridges and the HP imaging drums. It also lists the estimated pages remaining, number of pages printed, and other supplies information. You can print a Supplies Status page from the device or the HP Toolbox. To print from the device, complete the following steps. 1. On the control panel menu, press MENU. 2. Use the button to select Reports, and then press ENTER 3. Use the button to select Supplies Status, and then press ENTER. Note Supplies information is also available through the HP Toolbox.
This page illustrates conditions of consumables for Toner Cartridges, Image Drums, Image Transfer Kits, and Fuser Kits. It also provides ordering information and methods for disposing of or recycling used supplies.
Supplies information is also available through the HP Toolbox.
Areas of Supply Status Page: 1. Print-cartridge area. This area contains a section for each of the print cartridges and provides information about HP print cartridges. This information includes the part number for each print cartridge, whether each print cartridge is low, and the life remaining for each print cartridge expressed as a percentage, as a graphic, and as the estimated number of pages remaining. This information might not be provided for non- HP supplies. In some cases, if a non-HP supply is installed, an alert message appears instead. 2. Imaging-drum area. This area contains the same information for the imaging drum that the print-cartridge area provides for the print cartridges. 3. Warranty Note. This section contains information about how the device warranty is affected when you use non-HP supplies. It also requests that you call the HP fraud hotline if a supply that is being detected as a non-HP supply was sold to you as a genuine HP supply. (See HP fraud hotline.) 4. Ordering Information. This section contains basic information about how to order new HP supplies. See Checking status and ordering supplies. 5. Recycling Information. This section contains a link to the website that you can visit for information about recycling. See Replacing and recycling supplies.
The product Support Manual is available from the below link:
http://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c00341096/c00341096.pdf
If you have further questions just add comment to this link and we will gladly provide additional information and support.
Kind regards,
TF

On the 2840,one reason why the carousel gets out of alignment is because non HP cartridges were used and they were leaking toner. The leaking toner gets into the carousel gears and causes them to jump a couple of teeth.

If you have a warranty HP will fix the problem under warranty repair. However, if you were using non HP cartridges you will be billed. If your problem is non aligned gears, you won't need parts. The gears will have to be aligned and vacuumed. It doesn't require dismantling the printer.
If you do have to pay, it should only be an hour of labor.

Does it print good? If the printing is good, the carousel isn't out of alignment. Don't fix it if it isn't broke.

A Non-HP Toner Cartridge installed error message occurs in the following situations:

• Non-HP cartridge is installed
• HP cartridge is not installed correctly
• False error
• Sensor issue (hardware)

SOLUTION: The Non-HP Toner Cartridge installed error message could be cleared completing the following steps: All HP toner cartridges carry the Hewlett-Packard logo, and meet HP's high quality standards. 1. Verify that you are using a legitimate HP toner cartridge by going to the HP LaserJet and Color LaserJet Printers - Counterfeit Print Cartridges webpage. Click here to go to the HP LaserJet and Color LaserJet Printers - Counterfeit Print Cartridges webpage (http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=bpl01270) . 2. Remove the toner cartridges, clean the metallic contacts by a dry linen cloth, and then reseat the toner cartridge, and check if the error occurs. To reseat the toner cartridge, see the instructions at the HP Color LaserJet 2600n Printer - Changing Print Cartridges webpage. Click here to view the HP Color LaserJet 2600n Printer - Changing Print Cartridges webpage (http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00314345) . 3. If the issue persists, perform a firmware upgrade from the Download drivers and software page at www.hp.com. 4. Restore the factory defaults in order to restore the default settings: a. Use the left arrow or the right arrow button to select Service , and then press SELECT . b. Use the left arrow or the right arrow button to select Restore defaults , and then press SELECT . If the issue still persists, even after completing the troubleshooting steps provided, then use one of the following support options so that HP can work with you to resolve the issue, because it may be related to printer hardware where it needs a live interaction

• This product can be configured to use a metered or non-metered Toner / Print Cartridge. A non-metered machine requires a non-metered cartridge be installed to operate, while a metered machine can accept both a metered or non-metered cartridge to operate.
• Make sure the correct cartridge is used for the machine. If you are receiving metered print cartridges but the machine will not accept them, contact your reseller or supplier to ensure that your machine is properly set up as a metered machine, and that the metered PIN has been entered

• Make sure you don´t have any stickers on the toner box.
• If you sure all paper and stickers are out then reset the nvm values from the device in order to reset the printer information.

sounds like might be your toner, specifically your black toner.
is this a non-standard toner or HP? IF it your toner you can try this:

Place a stip of opaqe tape or paper or the chip. When the printer detects a non-standard cartridge press the green (go) button. It will then reset the LCD to Ready.

Found this info on a recycled manufacturer site. http://www.infinityimaging.com/cgi-local/SoftCart.exe/online-store/scstore/p-2300.html?E+scstore

otherwise it's probably the memory on the printer, try removing or replacing a DIMM

Hi devi960:
Pages print, but all
colors do not print or
the pages are
completely blank.
One of the print cartridges might be
low or empty.
Run an engine test and see if all four colors print. If
not all colors print, replace one or more of the print cartridges. If the
engine test is successful, replace the formatter.
If the printed pages are completely
blank, the file might have blank
pages.
Check the file to make sure that it does not contain blank pages.
A print cartridge might be low or
empty.
Check the printer control panel for a Supplies Status message,
print a Supplies Status page, or use the embedded Web server
(HP color LaserJet 2500 series printers only) to see the levels
remaining in the print cartridges. Replace any print cartridges that
are low or empty. Messages are not created for non-HP print
cartridges.
If you are using non-HP print
cartridges, one or more print
cartridges are low or empty. The
control panel lights do not indicate
low or empty for non-HP print
cartridges.
Replace one or more of the print cartridges.
Font DIMM might be selected but the
font DIMM is not physically installed in
the printer. (This issue applies only to
HP color LaserJet 2500 series
printers using an Asian-language font
DIMM.)
In the settings for this printer, clear the Font DIMM check box on
the Configure tab if no font DIMM is installed in the printer. Select
the Font DIMM check box only if the font DIMM is physically
installed in the printer. If you think that the font DIMM is installed,
make sure that it is installed correctly.
The paper curls when
exiting the top output
bin.
The paper needs to print to the
straight-through paper path.
Open the rear output door to print to the straight-through paper
path. Remove each sheet as it exits the printer.
The stack was slightly curled when it
was placed in the tray.
Turn the stack over in the tray.
The paper does not meet
specifications.
See the user guide for information about print-media specifications.
If you are printing on light media, the
Type setting might not be correct.
Select Light in the Type is field in the printer driver.

You will need to replace the image drum. This is either due to the face that you have exceeded the number of pages/cycles that the drum supports or the drum has damage. If this is the drum that came with the printer, it is likely they shipped it with "starter" supplies which last a fraction of the time as the regular "full retail" replacement supplies. A URL for HP's instructions on how to replace tn image drum on the HPCLJ 2550 series follows:
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=125&prodSeriesId=388394&prodTypeId=18972&prodSeriesId=388394&objectID=bpl12241