Ink Cartridge Compatibility for HP 7740

[TJ_1980]

I have an HP Office Jet Pro 7740. It says that it is compatible with ink cartridges 952, 952XL, 956XL. I ordered 952XL ink cartridges and replaced one cartridge and the printer is showing an error saying that the ink cartridge is incompatible. Please advise.

[Hawks_Eye]

sHi @

Welcome to the HP Support Community! 

Thanks for posting your query! We're here to help you get back up and running.

I understand your printer is not accepting 952XL cartridges.

May I know in which region or country the initial printer was setup?

Because the cartridges are region-specific, find below the table attached:

Your printer will accept 952 cartridges only if they were setup and used in the USA or Canada.

If you are using the correct region cartridges, then try the below suggestions:

POWER RESET 

Let's do a power reset on your printer by following the steps below.

Press the Power button to turn on the printer.

With the printer turned on, disconnect the power cord from the rear of the printer.

Unplug the power cord from the wall outlet.

Wait at least 15 seconds.

Plug the power cord back into the wall outlet.

Reconnect the power cord to the rear of the printer.

Note: Please connect the printer directly to a wall outlet.

If the printer does not turn on by itself, press the Power button to turn it on.

Manually clean the cartridges:

Turn the printer on.

Open the door to access the cartridges.

Wait until the carriage stops moving before you continue.

Remove the cartridge from its slot, holding it by its side.

CAUTION: Do not touch the copper-colored contacts or the ink nozzles. Touching these parts can result in clogs, ink failure, and bad electrical connections.

Lightly dampen a lint-free cloth with distilled water, and then clean only the copper-colored contacts on the cartridge and the electrical contacts located inside the printer.

Wait 10 minutes for the contacts to dry.

Reinsert the cartridge.

Close the cartridge access door.

If the error persists, repeat the previous steps to clean the cartridge and carriage contacts a second time.

Update the firmware on an HP printer

HP regularly releases new firmware versions for printer enhancements, app updates, or issue fixes. Update the firmware regularly to get the most out of your printer.

Click on the link below for instructions on how to update the firmware of your printer.

https://support.hp.com/in-en/document/ish_1776648-1643972-16

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Regards, 

Hawks_Eye