Printer cartridges not working

[Alisha39]

The black carriages isn’t working but I’ve done all the steps to make it work

[Raj_05]

Hi @Alisha39,

Welcome to HP Support Community.

Thank you for posting your query, I will be glad to help you.

I’m sorry to hear that you’re having trouble with your HP ENVY Photo 7855 All-In-One Printer. If the black cartridge is not communicating, you can try resetting the printer, cleaning the ink cartridge and carriage electrical contacts, or using single-cartridge mode. If none of these steps work, it could be a hardware failure.

Here are the steps to reset your printer.

1. Turn on the printer.
2. Tap the Setup icon on the printer display.
3. Tap Printer Maintenance.
4. Select Restore.
5. Touch Restore Factory Defaults.
6. A message appears stating that the factory defaults will be restored.

I hope this helps.

Take care and have a good day.

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

Alden4
HP Support 

[A_Gayathri]

Hi @Alisha39,

Welcome to the HP Support Community

I understand you are facing a print quality issue with your HP ENVY Photo 7855 All-In-One Printer Not to worry I will help you to get a resolution to resolve the issue.

To assist better:

• Are you using genuine HP ink cartridges?
• Does the copy print out the same way? 
• What's the application you are trying to print from? 
• Have you tried printing from a different application or device? 

While you respond to that, let's print a Print Quality Diagnostic page -Post the Print Quality Diagnostic page here so we can help you further.

Let's perform a power drain: 

• With the printer turned on, disconnect the power cord from the rear of the printer and also unplug the power cord from the wall outlet.
• Remove the USB cable, if present.
• Wait for 2-3 minutes, press and hold the power button on your printer for about 30 seconds to remove any additional charge.
• Now plug back the power cable straight to a wall outlet without any surge protector or an extension cord (This is important) and then plug back the power cord to the printer.
• Turn on the printer and wait till the warm-up period finishes and the printer is idle

Update the printer firmware 

• Click here to download and install the latest printer firmware from your product
• Click here to know different methods of updating the printer firmware. 
• click here and follow the troubleshooting steps HP ENVY Photo 7100, 7800 printers - Color or black ink not printing, other print quality issues

You may also refer to this document with steps to fix the " Print Quality Issues" issue applicable to your printer -  Print Quality Issues

Hope this helps! Keep me posted. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!