I have an HP Officejet Pro 8500 Premier all-in-one machine. I got a message that the 940 ink cartridge was empty. I replaced it with an HP 940 cartridge twice (thinking the first replacement may have been bad) but am still getting the message. I've checked to make sure there was no plastic cover over the ink cartridge. I've turned off, unplugged and turned the machine back on. All to no avail. Any suggestions on what is wrong?

Please check it "Ink leaking from the bottom of my officejet pro 8500 premier ..."

Is this an OEM ink jet cartridge -meaning was it made by HP and not a refill. There is a microchip on the ink cartridge that the printer logs how many times it has used that cartridge and how many times the print head is cleaned. If this chip gets dirty or if the mating side has ink or paper dust on that side you can clean it with isopropyl alcohol. If it was a refill or a generic cartridge the chip might not be programmed or it is dead. There is no sensor that detects how much ink is in a cartridge.

This model printer may only let you use genuine printer cartridges. If you try to refill these ink cartridges it will not work because the cartridges have an embedded chip in the cartridge that detects the empty cartridge even though it has been refilled.

hi there

go to this link and review the information . it has a video on HOW TO REPLACE THE INK CARTRIDGE. who knows, you may have missed something . i am sure this will help you resolve the issue.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01615954&tmp_track_link=ot_faqs/top_issues/en_ca/c01615954/loc:2&lc=en&dlc=en&cc=ca&lang=en&product=3752456


all the best to you

thanks for using FIXYA

Hi,
Here are some steps can help you.
Use only New Original HP ink
Restart the printer
Rreseat the ink cartridges
Update the firmware, download it from the link, make sure that you choose the correct operating system, and follow the on-screen instruction.
Check the ink levels, click Start , click All Programs, click HP ,click HP Solution Center, click Settings , click Printer Settings , click Printer Toolbox, Click the Estimated Ink Levels tab, note which cartridge is low on or out of ink
Restart the printer.
I hope this will be able to help you resolve the issue.
Thank you for choosing Fixya.

you can check the ink level from following steps Method one: Check the ink levels from the idle screen on the color graphics display Look for four icons at the bottom of the color graphics display. The icons represent the ink level remaining in each of the four color ink cartridges: black, yellow, light cyan (blue), and light magenta (pink). A larger and more accurate view of the ink levels can be displayed from the Setup menu. If an ink cartridge containing non-HP ink is being used, a question mark displays instead of the ink drop in the icon for that cartridge. The HP All-in-One cannot detect the amount of ink remaining in ink cartridges that contain non-HP ink. Figure 1: Non-HP ink icon NOTE: HP cannot guarantee the quality or reliability of non-HP ink. Printer service or repairs required as a result of printer failure or damage attributable to the use of non-HP ink will not be covered under warranty. If a hollow ink drop icon displays, the ink cartridge represented by that color icon has very little ink remaining and will need to be changed soon. You might be able to continue printing for a short period of time with ink remaining in the print head assembly. Replace the ink cartridge when the Replace Soon warning message displays on the color graphics display. Figure 2: Low ink level icon When the Empty Ink message appears on the color graphics display, the indicated ink cartridge is out of ink. Replace the indicated ink cartridge. Method two: Check ink levels from the Windows computer The estimated amount of ink remaining in the ink cartridges can be checked from the computer. See the on-screen HP Director Help for information on checking the ink levels from the Printer

1. Open the printer Toolbox. To do so, do one of the following:
   • Open HP Solution Center, click the Settings menu, then point to Print Settings , then click Printer Toolbox .
   • Right-click the HP Digital Imaging Monitor in the tray, then point to your printer model name, and click Display Printer Toolbox .
   The Toolbox opens.
2. Click the Estimated Ink Level tab. The estimated ink level gauges display.

Method three: Check ink levels from the Setup menu

1. Press Setup on the printer control panel.
2. Scroll down and select Display Ink Gauge . The Ink Gauge status from the Tools menu will only display on the color graphics display.

If the ink level is low and the cartridge is new please contact the dealer from whom you got the cartridge and if it shows that the ink level is good enough please comment so that i can give you another step to perform

Hi,

Seems like you will have to do a bit of cleaning on Cartridges and Printheads

Remove the Cartridges out and Clean the golden ( electrical ) contacts with a lint free cloth
Remove the Printheads ( unhook the latch/hook ) and Clean the contacts with lint free cloth

Put the Printhead firmly and install the cartridges. the printer will go through alignment process and should print alignment sheet.

Let me know if this fixes the issue.


Thank you for contacting FixYa


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The HP 940 cartridge is the new version of the HP 88 cartridge. Both have a chip that estimates ink levels. Once the chip says the cartridge is empty it will refuse to print, no matter how much ink is really left in the cartridge. This is a safety measure so you don't get air in your ink lines. If you get air in an ink line, that color will no longer print. We can refill the HP 88 because there are replacement chips available for these cartridges. I own a Cartridge World ink refilling store and I don't refill the HP 940s yet because I don't have access to a replacement chip. If you purchased a refilled HP 940 and it's not working, I would say the chip has not been replaced. I would wait until a reputable refiller (i.e.-Cartridge World, Office Depot, etc..) offers refills for this cartridge before you try anything off the internet.

This printer takes the HP 940 cartridge. I own a Cartridge World ink refilling store and we cannot refill these cartridges yet. There is a chip on the cartridge that estimates the ink levels and shuts off the cartridge when it thinks it is empty. Any refills you find are either violating patent law with replacement chips or they are telling you to take the chip off your old cartridge and put it on the new one. This second scenario is a rip off because once the chip says the cartridge is empty, no matter how much ink is left, it will refuse to print.

Changing a printer cartridge is not complex but improper handling of the parts may damage the printer and the cartridge. If the user notices that while printing the ink comes out dry or faded, it may be time to change the ink or the toner. The user will know if it is time to change the toner because instead of a sharp image, one will get a faded image. It is time to change the ink cartridge when the printing comes out spotty or colors are used to replace others —for instance, blue for black or yellow for red. Remember, faded images signal the need to change the toner; spotty printing signals the need to change the ink cartridge get more help for change cartridge .
Hope this helps you.