ink cartridge

[H22-]

can I use two ink cartridges in my DeskJet 20 7840 or does one have to be a color?

[Meghana_10]

@H22-, Welcome to the HP Support Community. 

Thanks for reaching out about your query regarding the HP DeskJet 20 7840 printer. 

We're thrilled to have the opportunity to assist you and provide a solution. We hope our assistance has been helpful! 

For many HP DeskJet printers, including the DeskJet 207840 model, both a black and a color ink cartridge are typically required for optimal functionality. These printers are designed to use one black and one color cartridge to function properly. It's important that you use the correct cartridges as specified in the printer's user manual to avoid any potential issues.

If you're exploring using alternative configurations, such as two black cartridges, I recommend reviewing the documentation that came with your printer or contacting HP customer support for further guidance specific to your printer model.

1. (English) Macintosh Connect * Users Guide - C6427-90071

I hope this helps!

Take care and have an amazing day! 

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Regards,

Meghana