People with aphantasia can’t imagine seeing things in their mind. People with ‘deep aphantasia’ may have no inner voice, either, and different real-world visual experiences.
If you have a rich visual mind you may be feeling sorry for me right now, but don't. I don't know what I'm missing and people with aphantasia have other rich inner worlds.
People with aphantasia are unable to deliberately bring to mind mental images. Understanding the mechanisms of aphantasia reveals that different types of cognition exist.