Black and White Digital Printing

Some good information about black and white digital printing

https://photographylife.com/a-simple-way-to-improve-your-black-and-white-prints-on-any-printer 

http://www.johnpaulcaponigro.com/about/interviews/digital-photo-pro-black-and-white-printing-2007/

https://www.ldproducts.com/blog/a-guide-to-printing-black-and-white-photos-at-home/