Sometimes the obvious thing is correct - yes, it needs a black ink cartridge. I'm surprised you managed to go through the cartridge alignment procedure correctly.
Here is a set up manual to guide the cartridge installation
This thread is now locked and can not be replied to.
Honor 5X review: Hands-on with the new budget phone from Hauwei's young brand
1995-2015: How technology has changed the world in 20 years
You can now publish data visualisations to the web from Power BI
Complete guide to Apple's campus 2, everything we know about the new spaceship HQ, plus: new drone…
Synology invites you to visit them at The Gadget Show on 31st March – 3rdApril. Book your tickets now and visit Synology at Stand K92