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Printer Prints a Blank Page or Does Not Print Black or Color Ink for the HP Officejet Pro 8500A e-All-in-One Printer Series

This document is for the HP Officejet Pro 8500A (A909) e-All-in-One printers.
The printer is working, but the printed output is missing black or color inks, or the output is blank or has very little ink.
To resolve this issue, use only genuine HP cartridges. Additionally, you can clean or replace the printhead. Replace the printhead only after you have the replacement printhead.
HP recommends that you use genuine HP cartridges. HP cannot guarantee the quality or reliability of non-HP cartridges or refilled HP cartridges. If you do not use genuine HP cartridges, the following solutions might not resolve your print quality issue.
To purchase cartridges or check cartridge compatibility for your printer, go to HP Home & Home Office Store (US only), and then click Ink Toner & Paper.
If you are located outside of the US, follow these steps to purchase cartridges using HP SureSupply.
  1. Scroll to the bottom of the page and make sure that the country/region location is correct.
Genuine HP cartridges can also be purchased from other retailers.
Which cartridges you use might depend on your country/region. Follow these steps to purchase cartridges or check cartridge compatibility for your printer using HP SureSupply.
  1. Scroll to the bottom of the page and make sure that the country/region location is correct.
 note:
For the United States only, go to the HP Home & Home Office Store.
Genuine HP cartridges can also be purchased from other retailers.
Solution two: Use an automated tool to clean the printheads
Use an automated tool to clean and unclog the printheads.
  1. Load plain white paper into the tray.
  2. Press the Power button to turn on the printer, if it is not already on.
  3. On the control panel, touch the Right Arrow () to display the second navigation screen.
  4. Touch Setup (), and then touch Tools.
  5. Touch Clean Printheads. The printer cleans the printheads.
  6. Wait while the printer completes the printhead cleaning process, and then touch OK. You might have to clean the printheads more than once for the best print quality.
 note:
Never turn off the printer when cartridges are missing. Make sure that you replace any missing cartridges as soon as possible to avoid print quality issues and possible extra ink usage or damage to the ink system. To avoid issues that require cleaning the printhead, always turn the printer off with the Power button on the printer itself.
Solution three: Replace the printhead
If you have completed all of the troubleshooting steps and are still experiencing a problem, replace the printhead.
 caution:
Wait until you have a new printhead assembly available before you remove the cartridges. HP recommends that you do not leave the cartridges outside the printer longer than 30 minutes. This could damage both the printer and the cartridges.
Step one: Identify the printhead to replace
Review the Print Quality Diagnostic page to determine which printhead to replace.
If, after repeated printhead cleaning, the Print Quality Diagnostic page shows white lines across the color blocks in Test Pattern 2 (but no white lines in the gray blocks in Test Pattern 3), one or both of the printheads will have to be replaced. The Print Quality Diagnostic page shows which printhead should be replaced.
Look at the color blocks labeled Test Pattern 2. Some of them should show white horizontal streaks (if none of the blocks are streaked, the printheads are okay).
  • Black block has lines – replace the Black/Yellow printhead.
  • Red block has lines – replace the Black/Yellow printhead.
  • Green block has lines – replace the Black/Yellow printhead.
Figure : Streaked black, red, or green color blocks - replace Black/Yellow Printhead
Illustration of streaked black, red or green color blocks in test pattern 2
  • Cyan block has lines – replace the Magenta/Cyan printhead.
  • Magenta block has lines – replace the Magenta/Cyan printhead.
Figure : Streaked cyan or magenta color blocks - replace Cyan/Magenta Printhead
Illustration of streaked cyan or magenta color blocks in test pattern 2
If you have a defective cartridge or printhead, it might be under warranty. To check the warranty on your ink supplies, go to hp.com/go/learnaboutsupplies, select your country/region, and then review the limited warranty information for your supplies.
When you have the replacement printhead, go to replacing the printheads.
Contacting HP for service in all countries/regions except Asia Pacific.
If you have completed all the preceding steps and are still experiencing a problem, service the product.
Determine if your product is in warranty or out of warranty. If you need help determining your product’s warranty status, go to HP’s Warranty Check Tool.
  • If your product is in warranty, Contact HP to obtain service.
  • If your product is out of warranty, Contact HP to find an authorized service provider or to setup service (fees might apply).
 note:
Keep a print sample that shows the problem. If the ink cartridges, printhead, or printer is replaced under warranty, the support agent will request the print sample. If the printer is returned to HP, the print sample must be returned with the printer. Place the sample in the output tray when you package your printer for shipping.

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