Canon Maxify GX6040 from Media Markt Only Prints in Yellow

I purchased a Canon Maxify GX6040 printer from Media Markt, but it only prints in yellow. It’s clear that I’ve been sold a faulty product. This issue has caused significant delays in my work, leaving me in a difficult position. I urgently need support to resolve this problem. Media Markt’s faulty product has disrupted my work, and I expect immediate assistance to either repair or replace the printer. I didn’t expect such poor quality from a reputable retailer, and this situation needs to be addressed quickly.