I’d be glad to assist you regarding the same and Since it is the settings under Printer Properties, you will have change the settings accordingly.
1. Go to the Printer properties
2. Under Print Setup page, Under Ink use you will find the options for Print using all ink, black or color only, so you can change the preference as per your need.
I am also attaching a sample screen shot of the same so you can refer.
I am also sending a link please click on the same and save it to your computer, as this is the User Manual for your Dell C1765NF MFP Laser Printer
Let us know if this helps and reply us back with your findings.
Thank you for your response,
I’m happy that your question is answered and please let us know if any issues in future, you can reply us on a new post and we’ll be glad to assist you.