hp envy 7645 stopped printing black ink

[Dogandpony]

HP Envy 7645 started printing black half-lines. I've uninstalled, reinstalled, updated, cleaned, aligned...and put in a new cartridge although the old one still had about a quarter full. 

Color is printing fine. 

[Nal_NR]

Hi @Dogandpony,

Welcome to the HP Support Community.

I understand that you are facing issues printing in black. I'd like to help!

Step 1: Reinstall the print driver (Windows only)

If you cannot print color from a Windows computer, uninstall and reinstall the printer software. Skip this step if your printer is able to print in color.

Remove the printer from the devices list.

For steps on removing the printer from the devices list, go to Uninstall HP printer software and drivers.

Go to HP Customer Support - Software and Driver Downloads, and then install the latest software for your printer.

Try to print. If these steps resolved the issue, you do not need to continue troubleshooting.

Step 2: Use genuine HP ink cartridges

HP recommends that you use genuine HP ink or toner supplies. HP cannot guarantee the quality or reliability of non-HP or refilled cartridges. If you do not use genuine HP cartridges, the steps in this document might not resolve the issue. To check the authenticity of your cartridges, go to the HP anti-counterfeit webpage (in English).

Ink Cartridge Description

Worldwide

Black ink cartridge

HP 62 Black

HP 62XL Black

Color ink cartridge

HP 62 Tri-color

HP 62XL Tri-color

Purchase replacement cartridges and other supplies from the HP Store or local retailers.

Step 3: Allow the printer to rest

Many print quality problems, such as poor black text or issues that occur with a newly installed ink cartridge, clear up with the automatic servicing routine. There is nothing you need to do. The print quality should start improving in a few hours.

• I cannot wait for automatic servicing to complete
• If you cannot wait for the automatic servicing to complete, cleaning the ink cartridges might help. Cleaning the printhead uses more ink than automatic printer servicing.

• NOTE:
• To avoid issues that require cleaning, always turn the printer off with the Power button.

• Load U.S. letter or A4 size, unused, plain white paper into the input tray.
• On the printer control panel, swipe the display to the left, and then touch Setup.
• The Setup menu displays.
• Swipe the display up, and then touch Printer Maintenance.
• Touch Clean Cartridges.
• A Print Quality Diagnostic report prints.
• Examine the Print Quality Diagnostic report.
• If the print quality is unacceptable, touch Proceed when prompted to continue the next level of cleaning. Repeat these steps for the third cleaning stage, if necessary.

• NOTE:
• If the printhead is badly clogged, it might require another cleaning cycle. If so, wait 30 minutes before you perform all three levels of cleaning again.

• If the print quality is acceptable, touch Done when prompted to continue the next level of cleaning. You do not need to continue troubleshooting.
• Examine the print quality on the Print Diagnostic report.
   

If these steps resolved the issue, you do not need to continue troubleshooting. If not go through the document here and start from step 4.

Hope this helps! Keep me posted. 

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Yes" on the bottom right to say “Thanks” for helping

[Dogandpony]

Thanks, did all of the above and still get either half black lines, or no black printing at all. Help! 

[Nal_NR]

Hi @Dogandpony,

Thanks for your reply. This situation will need some additional support from our internal teams in HP. For that to happen, we will give you additional instructions/information via Private Message.

Please check your inbox on the forums page for private message.

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution button, that'll help us and others see that we've got the answers!

[Okapi11]

Hi, I have the same issue, when I load the new black cartridge, I just received, when I order the printer to print black and white, it prints everything blurry.

[Nal_NR]

Hi @Okapi11,

Welcome to the HP Support Community.

I understand that you are facing issues printing in black. I'd like to help!

Have you tried those steps recommended? 

May I have the exact model name of the product? Refer to this document for steps to find the product details. Do not share any of your personal information such as serial, phone number, email ID, etc.